#!/usr/bin/env python
# -*- coding: utf-8 -*-
+# pylint: disable-msg=C0302
"""
grml2usb
~~~~~~~~
-This script installs a grml system (either a running system or ISO[s]) to a USB device
+This script installs a Grml system (either a running system or ISO[s]) to a USB device
-:copyright: (c) 2009 by Michael Prokop <mika@grml.org>
+:copyright: (c) 2009, 2010, 2011 by Michael Prokop <mika@grml.org>
:license: GPL v2 or any later version
:bugreports: http://grml.org/bugs/
-TODO
-----
-
-* implement missing options (--grub, --kernel, --initrd, --squashfs, --uninstall)
-* validate partition schema/layout: is the partition schema ok and the bootable flag set? (--validate?)
-* provide --create-partition option?
-* implement logic for storing information about copied files -> register every file in a set()
-* the last line in bootsplash (boot.msg) should mention all installed grml flavours
-* code improvements:
- - improve error handling wherever possible :)
- - use 'with open("...", "w") as f: ... f.write("...")'
- - simplify functions/code as much as possible, especially:
- Too many local variables
- Too many branches
- Too many statements
-* graphical version? any volunteers? :)
"""
-from __future__ import with_statement
+from __future__ import print_function
from optparse import OptionParser
from inspect import isroutine, isclass
-import datetime, logging, os, re, subprocess, sys, tempfile, time
+import datetime
+import fileinput
+import glob
+import logging
+import os
+import os.path
+import re
+import struct
+import subprocess
+import sys
+import tempfile
+import time
+import uuid
+import shutil
+
+# The line following this line is patched by debian/rules and tarball.sh.
+PROG_VERSION = '***UNRELEASED***'
# global variables
-PROG_VERSION = "0.9.2(pre1)"
-MOUNTED = set() # register mountpoints
-TMPFILES = set() # register tmpfiles
-DATESTAMP = time.mktime(datetime.datetime.now().timetuple()) # unique identifier for syslinux.cfg
+MOUNTED = set() # register mountpoints
+TMPFILES = set() # register tmpfiles
+DATESTAMP = time.mktime(datetime.datetime.now().timetuple()) # unique identifier for syslinux.cfg
+GRML_FLAVOURS = set() # which flavours are being installed?
+GRML_DEFAULT = None
+UUID = None
+SYSLINUX_LIBS = "/usr/lib/syslinux/"
+GPT_HEADER = "\x55\xaa\x45\x46\x49\x20\x50\x41\x52\x54" # original GPT header
+GRUB_INSTALL = None
+
+RE_PARTITION = re.compile(r'([a-z/]*?)(\d+)$')
+RE_P_PARTITION = re.compile(r'(.*?\d+)p(\d+)$')
+RE_LOOP_DEVICE = re.compile(r'/dev/loop\d+$')
+
+
+def syslinux_warning(option, opt, value, opt_parser):
+ """A helper function for printing a warning about deprecated option
+ """
+ # pylint: disable-msg=W0613
+ sys.stderr.write("Note: the --syslinux option is deprecated as syslinux "
+ "is grml2usb's default. Continuing anyway.\n")
+ setattr(opt_parser.values, option.dest, True)
+
+
+# if grub option is set, unset syslinux option
+def grub_option(option, opt, value, opt_parser):
+ """A helper function adjusting other option values
+ """
+ # pylint: disable-msg=W0613
+ setattr(opt_parser.values, option.dest, True)
+ setattr(opt_parser.values, 'syslinux', False)
# cmdline parsing
-USAGE = "Usage: %prog [options] <[ISO[s] | /live/image]> </dev/sdX#>\n\
+USAGE = "Usage: %prog [options] <[ISO[s] | /lib/live/mount/medium]> </dev/sdX#>\n\
\n\
-%prog installs a grml ISO to an USB device to be able to boot from it.\n\
-Make sure you have at least one grml ISO or a running grml system (/live/image),\n\
-syslinux (just run 'aptitude install syslinux' on Debian-based systems)\n\
-and root access. Further information can be found in: man grml2usb"
+%prog installs Grml ISO[s] to an USB device to be able to boot from it.\n\
+Make sure you have at least one Grml ISO or a running Grml system (/lib/live/mount/medium),\n\
+grub or syslinux and root access.\n\
+\n\
+Run %prog --help for usage hints, further information via: man grml2usb"
# pylint: disable-msg=C0103
+# pylint: disable-msg=W0603
parser = OptionParser(usage=USAGE)
parser.add_option("--bootoptions", dest="bootoptions",
- action="store", type="string",
+ action="append", type="string",
help="use specified bootoptions as default")
parser.add_option("--bootloader-only", dest="bootloaderonly", action="store_true",
help="do not copy files but just install a bootloader")
help="format specified partition with FAT16")
parser.add_option("--force", dest="force", action="store_true",
help="force any actions requiring manual interaction")
-parser.add_option("--grub", dest="grub", action="store_true",
- help="install grub bootloader instead of syslinux [TODO]")
-parser.add_option("--initrd", dest="initrd", action="store", type="string",
- help="install specified initrd instead of the default [TODO]")
-parser.add_option("--kernel", dest="kernel", action="store", type="string",
- help="install specified kernel instead of the default [TODO]")
-parser.add_option("--lilo", dest="lilo", action="store", type="string",
- help="lilo executable to be used for installing MBR")
+parser.add_option("--grub", dest="grub", action="callback",
+ callback=grub_option,
+ help="install grub bootloader instead of (default) syslinux")
+parser.add_option("--grub-mbr", dest="grubmbr", action="store_true",
+ help="install grub into MBR instead of (default) PBR")
+parser.add_option("--mbr-menu", dest="mbrmenu", action="store_true",
+ help="enable interactive boot menu in MBR")
parser.add_option("--quiet", dest="quiet", action="store_true",
help="do not output anything but just errors on console")
+parser.add_option("--remove-bootoption", dest="removeoption", action="append",
+ help="regex for removing existing bootoptions")
parser.add_option("--skip-addons", dest="skipaddons", action="store_true",
help="do not install /boot/addons/ files")
+parser.add_option("--skip-grub-config", dest="skipgrubconfig", action="store_true",
+ help="skip generation of grub configuration files")
parser.add_option("--skip-mbr", dest="skipmbr", action="store_true",
help="do not install a master boot record (MBR) on the device")
-parser.add_option("--squashfs", dest="squashfs", action="store", type="string",
- help="install specified squashfs file instead of the default [TODO]")
-parser.add_option("--uninstall", dest="uninstall", action="store_true",
- help="remove grml ISO files from specified device [TODO]")
+parser.add_option("--skip-syslinux-config", dest="skipsyslinuxconfig", action="store_true",
+ help="skip generation of syslinux configuration files")
+parser.add_option("--syslinux", dest="syslinux", action="callback", default=True,
+ callback=syslinux_warning,
+ help="install syslinux bootloader (deprecated as it's the default)")
+parser.add_option("--syslinux-mbr", dest="syslinuxmbr", action="store_true",
+ help="install syslinux master boot record (MBR) instead of default")
+parser.add_option("--tmpdir", dest="tmpdir", default="/tmp",
+ help="directory to be used for temporary files")
parser.add_option("--verbose", dest="verbose", action="store_true",
help="enable verbose mode")
parser.add_option("-v", "--version", dest="version", action="store_true",
(options, args) = parser.parse_args()
+GRML2USB_BASE = '/usr/share/grml2usb'
+if not os.path.isdir(GRML2USB_BASE):
+ GRML2USB_BASE = os.path.dirname(os.path.realpath(__file__))
+
+
class CriticalException(Exception):
- """Throw critical exception if the exact error is not known but fatal."
+ """Throw critical exception if the exact error is not known but fatal.
@Exception: message"""
- pass
+
+
+class VerifyException(Exception):
+ """Throw critical exception if there is an fatal error when verifying something.
+
+ @Exception: message"""
+
+
+# The following two functions help to operate on strings as
+# array (list) of bytes (octets). In Python 3000, the bytes
+# datatype will need to be used. This is intended for using
+# with manipulation of files on the octet level, like shell
+# arrays, e.g. in MBR creation.
+
+
+def array2string(*a):
+ """Convert a list of integers [0;255] to a string."""
+ return struct.pack("%sB" % len(a), *a)
+
+
+def string2array(s):
+ """Convert a (bytes) string into a list of integers."""
+ return struct.unpack("%sB" % len(s), s)
def cleanup():
"""Cleanup function to make sure there aren't any mounted devices left behind.
"""
+ def del_failed(fn, filepath, exc):
+ msg = "Deletion of %s failed in temporary folder %s"
+ logging.warn(msg % (filepath, path))
logging.info("Cleaning up before exiting...")
proc = subprocess.Popen(["sync"])
proc.wait()
- try:
- for device in MOUNTED:
+ for device in MOUNTED.copy():
+ try:
unmount(device, "")
- # ignore: RuntimeError: Set changed size during iteration
- except RuntimeError:
- logging.debug('caught expection RuntimeError, ignoring')
+ logging.debug('Unmounted %s' % device)
+ except StandardError:
+ logging.debug('RuntimeError while umount %s, ignoring' % device)
+
+ for tmppath in TMPFILES.copy():
+ try:
+ if os.path.isdir(tmppath) and not os.path.islink(tmppath):
+ # symbolic links to directories are ignored
+ # without the check it will throw an OSError
+ shutil.rmtree(tmppath, onerror=del_failed)
+ logging.debug('temporary directory %s deleted' % tmppath)
+ unregister_tmpfile(tmppath)
+ elif os.path.isfile:
+ os.unlink(tmppath)
+ logging.debug('temporary file %s deleted' % tmppath)
+ unregister_tmpfile(tmppath)
+ except StandardError:
+ msg = 'RuntimeError while removing temporary %s, ignoring'
+ logging.debug(msg % tmppath)
def register_tmpfile(path):
- """TODO
+ """
+ register tmpfile
"""
TMPFILES.add(path)
def unregister_tmpfile(path):
- """TODO
+ """
+ remove registered tmpfile
"""
- if path in TMPFILES:
+ try:
TMPFILES.remove(path)
+ except KeyError:
+ pass
def register_mountpoint(target):
- """TODO
+ """register specified target in a set() for handling clean exiting
+
+ @target: destination target of mountpoint
"""
MOUNTED.add(target)
def unregister_mountpoint(target):
- """TODO
+ """unregister specified target in a set() for handling clean exiting
+
+ @target: destination target of mountpoint
"""
if target in MOUNTED:
the command (default) or when using --dry-run commandline option
just displays what would be executed."""
# usage: execute(subprocess.Popen, (["ls", "-la"]))
- # TODO: doesn't work for proc = execute(subprocess.Popen...() -> any ideas?
if options.dryrun:
# pylint: disable-msg=W0141
- logging.debug('dry-run only: %s(%s)' % (get_function_name(f), ', '.join(map(repr, exec_arguments))))
+ logging.debug('dry-run only: %s(%s)', get_function_name(f), ', '.join(map(repr, exec_arguments)))
else:
# pylint: disable-msg=W0142
return f(*exec_arguments)
return None
-def search_file(filename, search_path='/bin' + os.pathsep + '/usr/bin'):
+def get_defaults_file(iso_mount, flavour, name):
+ """get the default file for syslinux
+ """
+ bootloader_dirs = ['/boot/isolinux/', '/boot/syslinux/']
+ for directory in bootloader_dirs:
+ for name in name, \
+ "%s_%s" % (get_flavour_filename(flavour), name):
+ if os.path.isfile(iso_mount + directory + name):
+ return (directory, name)
+ return ('', '')
+
+
+def search_file(filename, search_path='/bin' + os.pathsep + '/usr/bin', lst_return=False):
"""Given a search path, find file
@filename: name of file to search for
- @search_path: path where searching for the specified filename"""
- file_found = 0
+ @search_path: path where searching for the specified filename
+ @lst_return: return list of matching files instead one file"""
paths = search_path.split(os.pathsep)
- current_dir = '' # make pylint happy :)
+ current_dir = '' # make pylint happy :)
+ retval = []
+
+ def match_file(cwd):
+ """Helper function ffor testing if specified file exists in cwd
+
+ @cwd: current working directory
+ """
+ return os.path.exists(os.path.join(cwd, filename))
+
for path in paths:
+ current_dir = path
+ if match_file(current_dir):
+ retval.append(os.path.abspath(os.path.join(current_dir, filename)))
+ if not lst_return:
+ break
# pylint: disable-msg=W0612
for current_dir, directories, files in os.walk(path):
- if os.path.exists(os.path.join(current_dir, filename)):
- file_found = 1
- break
- if file_found:
- return os.path.abspath(os.path.join(current_dir, filename))
+ if match_file(current_dir):
+ retval.append(os.path.abspath(os.path.join(current_dir, filename)))
+ if not lst_return:
+ break
+ if lst_return:
+ return retval
+ elif retval:
+ return retval[0]
else:
return None
def check_uid_root():
"""Check for root permissions"""
- if not os.geteuid()==0:
- sys.exit("Error: please run this script with uid 0 (root).")
+ if not os.geteuid() == 0:
+ raise CriticalException("please run this script with uid 0 (root).")
+
+
+def check_boot_flag(device):
+ boot_dev, x = get_device_from_partition(device)
+
+ with open(boot_dev, 'r') as image:
+ data = image.read(520)
+ bootcode = data[440:]
+ gpt_data = bootcode[70:80]
+
+ if gpt_data == GPT_HEADER:
+ logging.info("GPT detected, skipping bootflag check")
+ elif bootcode[6] == '\x80':
+ logging.debug("bootflag is enabled")
+ else:
+ logging.debug("bootflag is NOT enabled")
+ raise VerifyException("Device %s does not have the bootflag set. "
+ "Please enable it to be able to boot." % boot_dev)
def mkfs_fat16(device):
@device: partition that should be formated"""
- # syslinux -d boot/isolinux /dev/sdb1
+ if options.dryrun:
+ logging.info("Would execute mkfs.vfat -F 16 %s now.", device)
+ return 0
+
logging.info("Formating partition with fat16 filesystem")
- logging.debug("mkfs.vfat -F 16 %s" % device)
+ logging.debug("mkfs.vfat -F 16 %s", device)
proc = subprocess.Popen(["mkfs.vfat", "-F", "16", device])
proc.wait()
if proc.returncode != 0:
- raise Exception("error executing mkfs.vfat")
-
-
-def generate_grub_config(grml_flavour):
- """Generate grub configuration for use via menu.lst
-
- @grml_flavour: name of grml flavour the configuration should be generated for"""
- # TODO
- # * what about systems using grub2 without having grub1 available?
- # * support grub2?
-
- return("""\
-# misc options:
-timeout 30
-# color red/blue green/black
-splashimage=/boot/grub/splash.xpm.gz
-foreground = 000000
-background = FFCC33
-
-# define entries:
-title %(grml_flavour)s - Default boot (using 1024x768 framebuffer)
-kernel /boot/release/%(grml_flavour)s/linux26 apm=power-off lang=us vga=791 quiet boot=live nomce module=%(grml_flavour)s
-initrd /boot/release/%(grml_flavour)s/initrd.gz
-
-# TODO: extend configuration :)
-""" % {'grml_flavour': grml_flavour} )
+ raise CriticalException("error executing mkfs.vfat")
def generate_isolinux_splash(grml_flavour):
@grml_flavour: name of grml flavour the configuration should be generated for"""
- # TODO: adjust last bootsplash line (the one following the "Some information and boot ...")
-
grml_name = grml_flavour
return("""\
Some information and boot options available via keys F2 - F10. http://grml.org/
%(grml_name)s
-""" % {'grml_name': grml_name} )
+""" % {'grml_name': grml_name})
-def generate_main_syslinux_config(grml_flavour, bootoptions):
+def generate_main_syslinux_config(*arg):
"""Generate main configuration for use in syslinux.cfg
- @grml_flavour: name of grml flavour the configuration should be generated for
- @bootoptions: bootoptions that should be used as a default"""
-
- local_datestamp = DATESTAMP
+ @*arg: just for backward compatibility"""
+ # pylint: disable-msg=W0613
+ # remove warning about unused arg
return("""\
-## main syslinux configuration - generated by grml2usb [main config generated at: %(local_datestamp)s]
-# use this to control the bootup via a serial port
-# SERIAL 0 9600
-DEFAULT grml
-TIMEOUT 300
-PROMPT 1
-DISPLAY /boot/syslinux/boot.msg
-F1 /boot/syslinux/boot.msg
-F2 /boot/syslinux/f2
-F3 /boot/syslinux/f3
-F4 /boot/syslinux/f4
-F5 /boot/syslinux/f5
-F6 /boot/syslinux/f6
-F7 /boot/syslinux/f7
-F8 /boot/syslinux/f8
-F9 /boot/syslinux/f9
-F10 /boot/syslinux/f10
-## end of main configuration
-
-## global configuration
-# the default option (using %(grml_flavour)s)
-LABEL grml
-KERNEL /boot/release/%(grml_flavour)s/linux26
-APPEND initrd=/boot/release/%(grml_flavour)s/initrd.gz apm=power-off boot=live nomce quiet module=%(grml_flavour)s %(bootoptions)s
-
-# memtest
-LABEL memtest
-KERNEL /boot/addons/memtest
-#APPEND BOOT_IMAGE=memtest
-
-# grub
-LABEL grub
-MENU LABEL grub
-KERNEL /boot/addons/memdisk
-APPEND initrd=/boot/addons/allinone.img
-
-# dos
-LABEL dos
-MENU LABEL dos
-KERNEL /boot/addons/memdisk
-APPEND initrd=/boot/addons/balder10.imz
-
-## end of global configuration
-""" % {'grml_flavour': grml_flavour, 'local_datestamp': local_datestamp, 'bootoptions': bootoptions} )
-
-
-def generate_flavour_specific_syslinux_config(grml_flavour, bootoptions):
- """Generate flavour specific configuration for use in syslinux.cfg
+label -
+menu label Default boot modes:
+menu disable
+include defaults.cfg
- @grml_flavour: name of grml flavour the configuration should be generated for
- @bootoptions: bootoptions that should be used as a default"""
-
- local_datestamp = DATESTAMP
+menu end
+menu separator
- return("""\
+# flavours:
+label -
+menu label Additional boot entries for:
+menu disable
+include additional.cfg
-# flavour specific configuration for %(grml_flavour)s [grml2usb for %(grml_flavour)s: %(local_datestamp)s]
-LABEL %(grml_flavour)s
-KERNEL /boot/release/%(grml_flavour)s/linux26
-APPEND initrd=/boot/release/%(grml_flavour)s/initrd.gz apm=power-off boot=live nomce quiet module=%(grml_flavour)s %(bootoptions)s
+menu separator
+include options.cfg
+include addons.cfg
-# flavour specific configuration for %(grml_flavour)s [grml2usb for %(grml_flavour)s: %(local_datestamp)s]
-LABEL %(grml_flavour)s2ram
-KERNEL /boot/release/%(grml_flavour)s/linux26
-APPEND initrd=/boot/release/%(grml_flavour)s/initrd.gz apm=power-off boot=live nomce quiet module=%(grml_flavour)s toram=%(grml_flavour)s %(bootoptions)s
+label help
+ include promptname.cfg
+ config prompt.cfg
+ text help
+ Jump to old style isolinux prompt
+ featuring further information
+ regarding available boot options.
+ endtext
-# flavour specific configuration for %(grml_flavour)s [grml2usb for %(grml_flavour)s: %(local_datestamp)s]
-LABEL %(grml_flavour)s-debug
-KERNEL /boot/release/%(grml_flavour)s/linux26
-APPEND initrd=/boot/release/%(grml_flavour)s/initrd.gz apm=power-off boot=live nomce quiet module=%(grml_flavour)s debug boot=live initcall_debug%(bootoptions)s
-# flavour specific configuration for %(grml_flavour)s [grml2usb for %(grml_flavour)s: %(local_datestamp)s]
-LABEL %(grml_flavour)s-x
-KERNEL /boot/release/%(grml_flavour)s/linux26
-APPEND initrd=/boot/release/%(grml_flavour)s/initrd.gz apm=power-off boot=live nomce quiet module=%(grml_flavour)s startx=wm-ng %(bootoptions)s
+include hiddens.cfg
+""")
-# flavour specific configuration for %(grml_flavour)s [grml2usb for %(grml_flavour)s: %(local_datestamp)s]
-LABEL %(grml_flavour)s-nofb
-KERNEL /boot/release/%(grml_flavour)s/linux26
-APPEND initrd=/boot/release/%(grml_flavour)s/initrd.gz apm=power-off boot=live nomce quiet module=%(grml_flavour)s vga=normal video=ofonly %(bootoptions)s
-# flavour specific configuration for %(grml_flavour)s [grml2usb for %(grml_flavour)s: %(local_datestamp)s]
-LABEL %(grml_flavour)s-failsafe
-KERNEL /boot/release/%(grml_flavour)s/linux26
-APPEND initrd=/boot/release/%(grml_flavour)s/initrd.gz apm=power-off boot=live nomce quiet module=%(grml_flavour)s vga=normal lang=us boot=live noautoconfig atapicd noacpi acpi=off nomodules nofirewire noudev nousb nohotplug noapm nopcmcia maxcpus=1 noscsi noagp nodma ide=nodma noswap nofstab nosound nogpm nosyslog nodhcp nocpu nodisc nomodem xmodule=vesa noraid nolvm %(bootoptions)s
+def generate_flavour_specific_syslinux_config(grml_flavour):
+ """Generate flavour specific configuration for use in syslinux.cfg
-# flavour specific configuration for %(grml_flavour)s [grml2usb for %(grml_flavour)s: %(local_datestamp)s]
-LABEL %(grml_flavour)s-forensic
-KERNEL /boot/release/%(grml_flavour)s/linux26
-APPEND initrd=/boot/release/%(grml_flavour)s/initrd.gz apm=power-off boot=live nomce quiet module=%(grml_flavour)s nofstab noraid nolvm noautoconfig noswap raid=noautodetect %(bootoptions)s
+ @grml_flavour: name of grml flavour the configuration should be generated for"""
-# flavour specific configuration for %(grml_flavour)s [grml2usb for %(grml_flavour)s: %(local_datestamp)s]
-LABEL %(grml_flavour)s-serial
-KERNEL /boot/release/%(grml_flavour)s/linux26
-APPEND initrd=/boot/release/%(grml_flavour)s/initrd.gz apm=power-off boot=live nomce quiet module=%(grml_flavour)s vga=normal video=vesafb:off console=tty1 console=ttyS0,9600n8 %(bootoptions)s
-""" % {'grml_flavour': grml_flavour, 'local_datestamp': local_datestamp, 'bootoptions': bootoptions} )
+ return("""\
+menu begin grml %(grml_flavour)s
+ menu title %(display_name)s
+ label mainmenu
+ menu label ^Back to main menu...
+ menu exit
+ menu separator
+ # include config for boot parameters from disk
+ include %(grml_flavour)s_grml.cfg
+ menu hide
+menu end
+""" % {'grml_flavour': grml_flavour, 'display_name': get_flavour_filename(grml_flavour)})
def install_grub(device):
"""Install grub on specified device.
+ @mntpoint: mountpoint of device where grub should install its files to
@device: partition where grub should be installed to"""
if options.dryrun:
- logging.info("Would execute grub-install %s now.", device)
+ logging.info("Would execute grub-install [--root-directory=mount_point] %s now.", device)
else:
- logging.critical("TODO: sorry - grub-install %s not implemented yet" % device)
+ device_mountpoint = tempfile.mkdtemp(prefix="grml2usb")
+ register_tmpfile(device_mountpoint)
+ try:
+ mount(device, device_mountpoint, "")
+
+ # If using --grub-mbr then make sure we install grub in MBR instead of PBR
+ if options.grubmbr:
+ logging.debug("Using option --grub-mbr ...")
+ grub_device, x = get_device_from_partition(device)
+ else:
+ grub_device = device
+
+ logging.info("Installing grub as bootloader")
+ for opt in ["", "--force"]:
+ logging.debug("grub-install --recheck %s --no-floppy --root-directory=%s %s",
+ opt, device_mountpoint, grub_device)
+ proc = subprocess.Popen([GRUB_INSTALL, "--recheck", opt, "--no-floppy",
+ "--root-directory=%s" % device_mountpoint, grub_device],
+ stdout=file(os.devnull, "r+"))
+ proc.wait()
+ if proc.returncode == 0:
+ break
+
+ if proc.returncode != 0:
+ # raise Exception("error executing grub-install")
+ logging.critical("Fatal: error executing grub-install "
+ + "(please check the grml2usb FAQ or drop the --grub option)")
+ logging.critical("Note: if using grub2 consider using "
+ + "the --grub-mbr option as grub considers PBR problematic.")
+ cleanup()
+ sys.exit(1)
+ except CriticalException as error:
+ logging.critical("Fatal: %s", error)
+ cleanup()
+ sys.exit(1)
+ finally:
+ unmount(device_mountpoint, "")
+ os.rmdir(device_mountpoint)
+ unregister_tmpfile(device_mountpoint)
def install_syslinux(device):
# syslinux -d boot/isolinux /dev/sdb1
logging.info("Installing syslinux as bootloader")
- logging.debug("syslinux -d boot/syslinux %s" % device)
+ logging.debug("syslinux -d boot/syslinux %s", device)
proc = subprocess.Popen(["syslinux", "-d", "boot/syslinux", device])
proc.wait()
if proc.returncode != 0:
- raise Exception("error executing syslinux")
+ raise CriticalException("Error executing syslinux (either try --fat16 or use grub?)")
def install_bootloader(device):
@device: partition where bootloader should be installed to"""
- # Install bootloader on the device (/dev/sda),
- # not on the partition itself (/dev/sda1)?
- #if partition[-1:].isdigit():
- # device = re.match(r'(.*?)\d*$', partition).group(1)
- #else:
- # device = partition
-
+ # by default we use grub, so install syslinux only on request
if options.grub:
- install_grub(device)
+ try:
+ install_grub(device)
+ except CriticalException as error:
+ logging.critical("Fatal: %s", error)
+ cleanup()
+ sys.exit(1)
else:
- install_syslinux(device)
-
+ try:
+ install_syslinux(device)
+ except CriticalException as error:
+ logging.critical("Fatal: %s", error)
+ cleanup()
+ sys.exit(1)
-def install_lilo_mbr(lilo, device):
- """TODO"""
- # to support -A for extended partitions:
- logging.info("Installing MBR")
- logging.debug("%s -S /dev/null -M %s ext" % (lilo, device))
- proc = subprocess.Popen([lilo, "-S", "/dev/null", "-M", device, "ext"])
- proc.wait()
- if proc.returncode != 0:
- raise Exception("error executing lilo")
+def install_mbr(mbrtemplate, device, partition, ismirbsdmbr=True):
+ """install 'mbr' master boot record (MBR) on a device
- # activate partition:
- logging.debug("%s -S /dev/null -A %s 1" % (lilo, device))
- proc = subprocess.Popen([lilo, "-S", "/dev/null", "-A", device, "1"])
- proc.wait()
- if proc.returncode != 0:
- raise Exception("error executing lilo")
+ Retrieve the partition table from "device", install an MBR from the
+ "mbrtemplate" file, set the "partition" (0..3) active, and install the
+ result back to "device".
+ @mbrtemplate: default MBR file
-def install_syslinux_mbr(device):
- """TODO"""
+ @device: name of a file assumed to be a hard disc (or USB stick) image, or
+ something like "/dev/sdb"
- # lilo's mbr is broken, use the one from syslinux instead:
- if not os.path.isfile("/usr/lib/syslinux/mbr.bin"):
- raise Exception("/usr/lib/syslinux/mbr.bin can not be read")
+ @partition: must be a number between 0 and 3, inclusive
- logging.debug("cat /usr/lib/syslinux/mbr.bin > %s" % device)
- try:
- # TODO -> use Popen instead?
- retcode = subprocess.call("cat /usr/lib/syslinux/mbr.bin > "+ device, shell=True)
- if retcode < 0:
- logging.critical("Error copying MBR to device (%s)" % retcode)
- except OSError, error:
- logging.critical("Execution failed:", error)
+ @mbrtemplate: must be a valid MBR file of at least 440 (or 439 if
+ ismirbsdmbr) bytes.
+ @ismirbsdmbr: if true then ignore the active flag, set the mirbsdmbr
+ specific flag to 0/1/2/3 and set the MBR's default value accordingly. If
+ false then leave the mirbsdmbr specific flag set to FFh, set all
+ active flags to 0 and set the active flag of the partition to 80h. Note:
+ behaviour of mirbsdmbr: if flag = 0/1/2/3 then use it, otherwise search for
+ the active flag."""
-def install_mbr(device):
- """Install a default master boot record on given device
+ logging.info("Installing default MBR")
- @device: device where MBR should be installed to"""
+ if not os.path.isfile(mbrtemplate):
+ logging.error('Error installing MBR (either try --syslinux-mbr or '
+ 'install missing file "%s"?)', mbrtemplate)
+ raise CriticalException("%s can not be read." % mbrtemplate)
- if not is_writeable(device):
- raise IOError("device not writeable for user")
+ if partition is not None and ((partition < 0) or (partition > 3)):
+ logging.warn("Cannot activate partition %d", partition)
+ partition = None
- # try to use system's lilo
- if which("lilo"):
- lilo = which("lilo")
+ if ismirbsdmbr:
+ nmbrbytes = 439
else:
- # otherwise fall back to our static version
- from platform import architecture
- if architecture()[0] == '64bit':
- lilo = '/usr/share/grml2usb/lilo/lilo.static.amd64'
- else:
- lilo = '/usr/share/grml2usb/lilo/lilo.static.i386'
- # finally prefer a specified lilo executable
- if options.lilo:
- lilo = options.lilo
+ nmbrbytes = 440
- if not is_exe(lilo):
- raise Exception("lilo executable can not be execute")
+ tmpf = tempfile.NamedTemporaryFile()
- if options.dryrun:
- logging.info("Would install MBR running lilo and using syslinux.")
- return 0
+ logging.debug("executing: dd if='%s' of='%s' bs=512 count=1", device, tmpf.name)
+ proc = subprocess.Popen(["dd", "if=%s" % device, "of=%s" % tmpf.name, "bs=512", "count=1"],
+ stderr=file(os.devnull, "r+"))
+ proc.wait()
+ if proc.returncode != 0:
+ raise Exception("error executing dd (first run)")
+
+ logging.debug("executing: dd if=%s of=%s bs=%s count=1 conv=notrunc", mbrtemplate,
+ tmpf.name, nmbrbytes)
+ proc = subprocess.Popen(["dd", "if=%s" % mbrtemplate, "of=%s" % tmpf.name, "bs=%s" % nmbrbytes,
+ "count=1", "conv=notrunc"], stderr=file(os.devnull, "r+"))
+ proc.wait()
+ if proc.returncode != 0:
+ raise Exception("error executing dd (second run)")
+
+ mbrcode = tmpf.file.read(512)
+ if len(mbrcode) < 512:
+ raise EOFError("MBR size (%d) < 512" % len(mbrcode))
- install_lilo_mbr(lilo, device)
- install_syslinux_mbr(device)
+ if partition is not None:
+ if ismirbsdmbr:
+ mbrcode = mbrcode[0:439] + chr(partition) + \
+ mbrcode[440:510] + "\x55\xAA"
+ else:
+ actives = ["\x00", "\x00", "\x00", "\x00"]
+ actives[partition] = "\x80"
+ mbrcode = mbrcode[0:446] + actives[0] + \
+ mbrcode[447:462] + actives[1] + \
+ mbrcode[463:478] + actives[2] + \
+ mbrcode[479:494] + actives[3] + \
+ mbrcode[495:510] + "\x55\xAA"
+
+ tmpf.file.seek(0)
+ tmpf.file.truncate()
+ tmpf.file.write(mbrcode)
+ tmpf.file.close()
+
+ logging.debug("executing: dd if='%s' of='%s' bs=512 count=1 conv=notrunc", tmpf.name, device)
+ proc = subprocess.Popen(["dd", "if=%s" % tmpf.name, "of=%s" % device, "bs=512", "count=1",
+ "conv=notrunc"], stderr=file(os.devnull, "r+"))
+ proc.wait()
+ if proc.returncode != 0:
+ raise Exception("error executing dd (third run)")
+ del tmpf
def is_writeable(device):
@target: directory where the ISO should be mounted to
@options: mount specific options"""
- # notice: options.dryrun does not work here, as we have to
+ # note: options.dryrun does not work here, as we have to
# locate files and identify the grml flavour
- logging.debug("mount %s %s %s" % (mount_options, source, target))
+
+ for x in file('/proc/mounts').readlines():
+ if x.startswith(source):
+ raise CriticalException("Error executing mount: %s already mounted - " % source
+ + "please unmount before invoking grml2usb")
+
+ if os.path.isdir(source):
+ logging.debug("Source %s is not a device, therefore not mounting.", source)
+ return 0
+
+ logging.debug("mount %s %s %s", mount_options, source, target)
proc = subprocess.Popen(["mount"] + list(mount_options) + [source, target])
proc.wait()
if proc.returncode != 0:
- raise CriticalException("Error executing mount")
+ raise CriticalException("Error executing mount (no filesystem on the partition?)")
else:
- logging.debug("register_mountpoint(%s)" % target)
+ logging.debug("register_mountpoint(%s)", target)
register_mountpoint(target)
# make sure we unmount only already mounted targets
target_unmount = False
mounts = open('/proc/mounts').readlines()
- mountstring = re.compile(".*%s.*" % re.escape(target))
+ mountstring = re.compile(".*%s.*" % re.escape(os.path.realpath(target)))
for line in mounts:
if re.match(mountstring, line):
target_unmount = True
if not target_unmount:
- logging.debug("%s not mounted anymore" % target)
+ logging.debug("%s not mounted anymore", target)
else:
- logging.debug("umount %s %s" % (list(unmount_options), target))
+ logging.debug("umount %s %s", list(unmount_options), target)
proc = subprocess.Popen(["umount"] + list(unmount_options) + [target])
proc.wait()
if proc.returncode != 0:
raise Exception("Error executing umount")
else:
- logging.debug("unregister_mountpoint(%s)" % target)
+ logging.debug("unregister_mountpoint(%s)", target)
unregister_mountpoint(target)
"""
usbdevice = re.match(r'/dev/(.*?)\d*$', device).group(1)
- usbdevice = os.path.realpath('/sys/class/block/' + usbdevice + '/removable')
- if os.path.isfile(usbdevice):
- is_usb = open(usbdevice).readline()
- if is_usb == "1":
+ # newer systems:
+ usbdev = os.path.realpath('/sys/class/block/' + usbdevice + '/removable')
+ if not os.path.isfile(usbdev):
+ # Ubuntu with kernel 2.6.24 for example:
+ usbdev = os.path.realpath('/sys/block/' + usbdevice + '/removable')
+
+ if os.path.isfile(usbdev):
+ is_usb = open(usbdev).readline()
+ if is_usb.find("1"):
return 0
- else:
- return 1
+
+ return 1
def check_for_fat(partition):
@partition: device name of partition"""
+ if not os.access(partition, os.R_OK):
+ raise CriticalException("Failed to read device %s"
+ " (wrong UID/permissions or device/directory not present?)" % partition)
+
try:
- udev_info = subprocess.Popen(["/lib/udev/vol_id", "-t", partition],
- stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+ udev_info = subprocess.Popen(["/sbin/blkid", "-s", "TYPE", "-o", "value", partition],
+ stdout=subprocess.PIPE, stderr=subprocess.PIPE)
filesystem = udev_info.communicate()[0].rstrip()
- if udev_info.returncode == 2:
- raise CriticalException("Failed to read device %s"
- "(wrong UID/permissions or device not present?)" % partition)
-
if filesystem != "vfat":
- raise CriticalException("Device %s does not contain a FAT16 partition." % partition)
+ raise CriticalException(
+ "Partition %s does not contain a FAT16 filesystem. "
+ "(Use --fat16 or run mkfs.vfat %s)" % (partition, partition))
except OSError:
- raise CriticalException("Sorry, /lib/udev/vol_id not available.")
+ raise CriticalException("Sorry, /sbin/blkid not available (install e2fsprogs?)")
def mkdir(directory):
pass
+def exec_rsync(source, target):
+ """Simple wrapper around rsync to install files
+
+ @source: source file/directory
+ @target: target file/directory"""
+ logging.debug("Source: %s / Target: %s", source, target)
+ proc = subprocess.Popen(["rsync", "-rlptDH", "--inplace", source, target])
+ proc.wait()
+ if proc.returncode == 12:
+ logging.critical("Fatal: No space left on device")
+ cleanup()
+ sys.exit(1)
+
+ if proc.returncode != 0:
+ logging.critical("Fatal: could not install %s", source)
+ cleanup()
+ sys.exit(1)
+
+
+def write_uuid(target_file):
+ """Generates an returns uuid and write it to the specified file
+
+ @target_file: filename to write the uuid to
+ """
+
+ fileh = open(target_file, 'w')
+ uid = str(uuid.uuid4())
+ fileh.write(uid)
+ fileh.close()
+ return uid
+
+
+def get_uuid(target):
+ """Get the uuid of the specified target. Will generate an uuid if none exist.
+
+ @target: directory/mountpoint containing the grml layout
+ """
+
+ conf_target = target + "/conf/"
+ uuid_file_name = conf_target + "/bootid.txt"
+ if os.path.isdir(conf_target):
+ if os.path.isfile(uuid_file_name):
+ uuid_file = open(uuid_file_name, 'r')
+ uid = uuid_file.readline().strip()
+ uuid_file.close()
+ return uid
+ else:
+ return write_uuid(uuid_file_name)
+ else:
+ execute(mkdir, conf_target)
+ return write_uuid(uuid_file_name)
+
+
+def get_shortname(grml_flavour):
+ """Get shortname based from grml_flavour name. The rules applied are the same as in grml-live
+ @grml_flavour: flavour name which shold be translated to shortname"""
+
+ return re.sub(r'[,._-]', '', grml_flavour)
+
+
def copy_system_files(grml_flavour, iso_mount, target):
- """TODO"""
+ """copy grml's main files (like squashfs, kernel and initrd) to a given target
+
+ @grml_flavour: name of grml flavour the configuration should be generated for
+ @iso_mount: path where a grml ISO is mounted on
+ @target: path where grml's main files should be copied to"""
squashfs = search_file(grml_flavour + '.squashfs', iso_mount)
if squashfs is None:
- logging.critical("Fatal: squashfs file not found")
+ logging.error("error locating squashfs file")
+ raise CriticalException("squashfs file not found, please check that your iso is not corrupt")
else:
- squashfs_target = target + '/live/'
+ squashfs_target = target + '/live/' + grml_flavour + '/'
execute(mkdir, squashfs_target)
- # use install(1) for now to make sure we can write the files afterwards as normal user as well
- logging.debug("cp %s %s" % (squashfs, target + '/live/' + grml_flavour + '.squashfs'))
- proc = subprocess.Popen(["install", "--mode=664", squashfs, squashfs_target + grml_flavour + ".squashfs"])
- proc.wait()
+ exec_rsync(squashfs, squashfs_target + grml_flavour + '.squashfs')
- filesystem_module = search_file('filesystem.module', iso_mount)
+ for prefix in grml_flavour + "/", "":
+ filesystem_module = search_file(prefix + 'filesystem.module', iso_mount)
+ if filesystem_module:
+ break
if filesystem_module is None:
- logging.critical("Fatal: filesystem.module not found")
+ logging.error("error locating filesystem.module file")
+ raise CriticalException("filesystem.module not found")
else:
- logging.debug("cp %s %s" % (filesystem_module, squashfs_target + grml_flavour + '.module'))
- proc = subprocess.Popen(["install", "--mode=664", filesystem_module,
- squashfs_target + grml_flavour + '.module'])
- proc.wait()
+ exec_rsync(filesystem_module, squashfs_target + 'filesystem.module')
- release_target = target + '/boot/release/' + grml_flavour
- execute(mkdir, release_target)
-
- kernel = search_file('linux26', iso_mount)
- if kernel is None:
- logging.critical("Fatal kernel not found")
+ shortname = get_shortname(grml_flavour)
+ if os.path.isdir(iso_mount + '/boot/' + shortname):
+ exec_rsync(iso_mount + '/boot/' + shortname, target + '/boot')
else:
- logging.debug("cp %s %s" % (kernel, release_target + '/linux26'))
- proc = subprocess.Popen(["install", "--mode=664", kernel, release_target + '/linux26'])
- proc.wait()
+ kernel = search_file('vmlinuz', iso_mount)
+ if kernel is None:
+ # compat for releases < 2011.12
+ kernel = search_file('linux26', iso_mount)
+
+ if kernel is None:
+ logging.error("error locating kernel file")
+ raise CriticalException("Kernel not found")
- initrd = search_file('initrd.gz', iso_mount)
- if initrd is None:
- logging.critical("Fatal: initrd not found")
+ source = os.path.dirname(kernel) + '/'
+ dest = target + '/' + os.path.dirname(kernel).replace(iso_mount, '') + '/'
+ execute(mkdir, dest)
+ exec_rsync(source, dest)
+
+
+def update_grml_versions(iso_mount, target):
+ """Update the grml version file on a cd
+ Returns true if version was updated successfully,
+ False if grml-version does not exist yet on the mountpoint
+
+ @iso_mount: string of the iso mount point
+ @target: path of the target mount point
+ """
+ grml_target = target + '/grml/'
+ target_grml_version_file = search_file('grml-version', grml_target)
+ if target_grml_version_file:
+ iso_grml_version_file = search_file('grml-version', iso_mount)
+ if not iso_grml_version_file:
+ logging.warn("Warning: %s could not be found - can not install it", iso_grml_version_file)
+ return False
+ try:
+ # read the flavours from the iso image
+ iso_versions = {}
+ iso_file = open(iso_grml_version_file, 'r')
+ for line in iso_file:
+ iso_versions[get_flavour(line)] = line.strip()
+
+ # update the existing flavours on the target
+ for line in fileinput.input([target_grml_version_file], inplace=1):
+ flavour = get_flavour(line)
+ if flavour in iso_versions.keys():
+ print(iso_versions.pop(flavour))
+ else:
+ print(line.strip())
+ fileinput.close()
+
+ target_file = open(target_grml_version_file, 'a')
+ # add the new flavours from the current iso
+ for flavour in iso_versions:
+ target_file.write("%s\n" % iso_versions[flavour])
+ except IOError:
+ logging.warn("Warning: Could not write file")
+ finally:
+ iso_file.close()
+ target_file.close()
+ return True
else:
- logging.debug("cp %s %s" % (initrd, release_target + '/initrd.gz'))
- proc = subprocess.Popen(["install", "--mode=664", initrd, release_target + '/initrd.gz'])
- proc.wait()
+ return False
+
+def copy_grml_files(grml_flavour, iso_mount, target):
+ """copy some minor grml files to a given target
-def copy_grml_files(iso_mount, target):
- """TODO"""
+ @grml_flavour: the current grml_flavour
+ @iso_mount: path where a grml ISO is mounted on
+ @target: path where grml's main files should be copied to"""
grml_target = target + '/grml/'
execute(mkdir, grml_target)
- for myfile in 'grml-cheatcodes.txt', 'grml-version', 'LICENSE.txt', 'md5sums', 'README.txt':
- grml_file = search_file(myfile, iso_mount)
- if grml_file is None:
- logging.warn("Warning: myfile %s could not be found - can not install it", myfile)
- else:
- logging.debug("cp %s %s" % (grml_file, grml_target + grml_file))
- proc = subprocess.Popen(["install", "--mode=664", grml_file, grml_target + myfile])
- proc.wait()
-
- grml_web_target = grml_target + '/web/'
- execute(mkdir, grml_web_target)
+ grml_prefixe = ["GRML", "grml"]
+ for prefix in grml_prefixe:
+ filename = "{0}/{1}/{2}".format(iso_mount, prefix, grml_flavour)
+ if os.path.exists(filename):
+ exec_rsync(filename, grml_target)
+ break
+ else:
+ logging.warn("Warning: could not find flavour directory for %s ", grml_flavour)
- for myfile in 'index.html', 'style.css':
- grml_file = search_file(myfile, iso_mount)
- if grml_file is None:
- logging.warn("Warning: myfile %s could not be found - can not install it")
- else:
- logging.debug("cp %s %s" % (grml_file, grml_web_target + grml_file))
- proc = subprocess.Popen(["install", "--mode=664", grml_file, grml_web_target + myfile])
- proc.wait()
- grml_webimg_target = grml_web_target + '/images/'
- execute(mkdir, grml_webimg_target)
+def handle_addon_copy(filename, dst, iso_mount, ignore_errors=False):
+ """handle copy of optional addons
- for myfile in 'button.png', 'favicon.png', 'linux.jpg', 'logo.png':
- grml_file = search_file(myfile, iso_mount)
- if grml_file is None:
- logging.warn("Warning: myfile %s could not be found - can not install it")
- else:
- logging.debug("cp %s %s" % (grml_file, grml_webimg_target + grml_file))
- proc = subprocess.Popen(["install", "--mode=664", grml_file, grml_webimg_target + myfile])
- proc.wait()
+ @filename: filename of the addon
+ @dst: destination directory
+ @iso_mount: location of the iso mount
+ @ignore_errors: don't report missing files
+ """
+ file_location = search_file(filename, iso_mount)
+ if file_location is None:
+ if not ignore_errors:
+ logging.warn("Warning: %s not found (that's fine if you don't need it)", filename)
+ else:
+ exec_rsync(file_location, dst)
def copy_addons(iso_mount, target):
- """TODO"""
+ """copy grml's addons files (like allinoneimg, bsd4grml,..) to a given target
+
+ @iso_mount: path where a grml ISO is mounted on
+ @target: path where grml's main files should be copied to"""
+
addons = target + '/boot/addons/'
execute(mkdir, addons)
# grub all-in-one image
- allinoneimg = search_file('allinone.img', iso_mount)
- if allinoneimg is None:
- logging.warn("Warning: allinone.img not found - can not install it")
- else:
- logging.debug("cp %s %s" % (allinoneimg, addons + '/allinone.img'))
- proc = subprocess.Popen(["install", "--mode=664", allinoneimg, addons + 'allinone.img'])
- proc.wait()
+ handle_addon_copy('allinone.img', addons, iso_mount)
- # freedos image
- balderimg = search_file('balder10.imz', iso_mount)
- if balderimg is None:
- logging.warn("Warning: balder10.imz not found - can not install it")
- else:
- logging.debug("cp %s %s" % (balderimg, addons + '/balder10.imz'))
- proc = subprocess.Popen(["install", "--mode=664", balderimg, addons + 'balder10.imz'])
- proc.wait()
+ # bsd image
+ handle_addon_copy('bsd4grml', addons, iso_mount)
+
+ # DOS image
+ handle_addon_copy('balder10.imz', addons, iso_mount)
+
+ # syslinux + pci.ids for hdt
+ for expr in '*.c32', 'pci.ids':
+ glob_and_copy(iso_mount + '/boot/addons/' + expr, addons)
+
+ # memdisk image
+ handle_addon_copy('memdisk', addons, iso_mount)
# memtest86+ image
- memdiskimg = search_file('memdisk', iso_mount)
- if memdiskimg is None:
- logging.warn("Warning: memdisk not found - can not install it")
- else:
- logging.debug("cp %s %s" % (memdiskimg, addons + '/memdisk'))
- proc = subprocess.Popen(["install", "--mode=664", memdiskimg, addons + 'memdisk'])
- proc.wait()
+ handle_addon_copy('memtest', addons, iso_mount)
+
+ # gpxe.lkrn: got replaced by ipxe
+ handle_addon_copy('gpxe.lkrn', addons, iso_mount, ignore_errors=True)
+
+ # ipxe.lkrn
+ handle_addon_copy('ipxe.lkrn', addons, iso_mount)
+
+
+def build_loopbackcfg(target):
+ """Generate GRUB's loopback.cfg based on existing config files.
+
+ @target: target directory
+ """
+
+ grub_dir = '/boot/grub/'
+ mkdir(os.path.join(target, grub_dir))
+
+ f = open(target + grub_dir + 'loopback.cfg', 'w')
+
+ f.write("# grml2usb generated grub2 configuration file\n")
+ f.write("source /boot/grub/header.cfg\n")
+ for defaults in glob.glob(target + os.path.sep + grub_dir + os.path.sep + "*_default.cfg"):
+ sourcefile = defaults.split(target + os.path.sep)[1]
+ logging.debug("Found source file" + sourcefile)
+ os.path.isfile(defaults) and f.write("source " + sourcefile + "\n")
-def copy_bootloader_files(iso_mount, target):
- """"TODO"""
+ for ops in glob.glob(target + os.path.sep + grub_dir + os.path.sep + "*_options.cfg"):
+ sourcefile = ops.split(target + os.path.sep)[1]
+ logging.debug("Found source file" + sourcefile)
+ os.path.isfile(ops) and f.write("source " + sourcefile + "\n")
+
+ f.write("source /boot/grub/addons.cfg\n")
+ f.write("source /boot/grub/footer.cfg\n")
+ f.close()
+
+
+def glob_and_copy(filepattern, dst):
+ """Glob on specified filepattern and copy the result to dst
+
+ @filepattern: globbing pattern
+ @dst: target directory
+ """
+ for name in glob.glob(filepattern):
+ copy_if_exist(name, dst)
+
+
+def search_and_copy(filename, search_path, dst):
+ """Search for the specified filename at searchpath and copy it to dst
+
+ @filename: filename to look for
+ @search_path: base search file
+ @dst: destionation to copy the file to
+ """
+ file_location = search_file(filename, search_path)
+ copy_if_exist(file_location, dst)
+
+
+def copy_if_exist(filename, dst):
+ """Copy filename to dst if filename is set.
+
+ @filename: a filename
+ @dst: dst file
+ """
+ if filename and (os.path.isfile(filename) or os.path.isdir(filename)):
+ exec_rsync(filename, dst)
+
+
+def copy_bootloader_files(iso_mount, target, grml_flavour):
+ """Copy grml's bootloader files to a given target
+
+ @iso_mount: path where a grml ISO is mounted on
+ @target: path where grml's main files should be copied to
+ @grml_flavour: name of the current processed grml_flavour
+ """
syslinux_target = target + '/boot/syslinux/'
execute(mkdir, syslinux_target)
+ grub_target = target + '/boot/grub/'
+ execute(mkdir, grub_target)
+
logo = search_file('logo.16', iso_mount)
- logging.debug("cp %s %s" % (logo, syslinux_target + 'logo.16'))
- proc = subprocess.Popen(["install", "--mode=664", logo, syslinux_target + 'logo.16'])
- proc.wait()
+ exec_rsync(logo, syslinux_target + 'logo.16')
- for ffile in 'f2', 'f3', 'f4', 'f5', 'f6', 'f7', 'f8', 'f9', 'f10':
- bootsplash = search_file(ffile, iso_mount)
- logging.debug("cp %s %s" % (bootsplash, syslinux_target + ffile))
- proc = subprocess.Popen(["install", "--mode=664", bootsplash, syslinux_target + ffile])
- proc.wait()
+ bootx64_efi = search_file('bootx64.efi', iso_mount)
+ if bootx64_efi:
+ mkdir(target + '/efi/boot/')
+ exec_rsync(bootx64_efi, target + '/efi/boot/bootx64.efi')
- grub_target = target + '/boot/grub/'
- execute(mkdir, grub_target)
+ efi_img = search_file('efi.img', iso_mount)
+ if efi_img:
+ mkdir(target + '/boot/')
+ exec_rsync(efi_img, target + '/boot/efi.img')
- if not os.path.isfile("/usr/share/grml2usb/grub/splash.xpm.gz"):
- logging.critical("Error: /usr/share/grml2usb/grub/splash.xpm.gz can not be read.")
- raise
- else:
- logging.debug("cp /usr/share/grml2usb/grub/splash.xpm.gz %s" % grub_target + 'splash.xpm.gz')
- proc = subprocess.Popen(["install", "--mode=664", '/usr/share/grml2usb/grub/splash.xpm.gz',
- grub_target + 'splash.xpm.gz'])
- proc.wait()
+ for ffile in ['f%d' % number for number in range(1, 11)]:
+ search_and_copy(ffile, iso_mount, syslinux_target + ffile)
- if not os.path.isfile("/usr/share/grml2usb/grub/stage2_eltorito"):
- logging.critical("Error: /usr/share/grml2usb/grub/stage2_eltorito can not be read.")
- raise
- else:
- logging.debug("cp /usr/share/grml2usb/grub/stage2_eltorito to %s" % grub_target + 'stage2_eltorito')
- proc = subprocess.Popen(["install", "--mode=664", '/usr/share/grml2usb/grub/stage2_eltorito',
- grub_target + 'stage2_eltorito'])
- proc.wait()
+ # avoid the "file is read only, overwrite anyway (y/n) ?" question
+ # of mtools by syslinux ("mmove -D o -D O s:/ldlinux.sys $target_file")
+ if os.path.isfile(syslinux_target + 'ldlinux.sys'):
+ os.unlink(syslinux_target + 'ldlinux.sys')
+
+ (source_dir, name) = get_defaults_file(iso_mount, grml_flavour, "default.cfg")
+ (source_dir, defaults_file) = get_defaults_file(iso_mount, grml_flavour, "grml.cfg")
+
+ if not source_dir:
+ raise CriticalException(
+ "file default.cfg could not be found.\n"
+ "Note: this grml2usb version requires an ISO generated by grml-live >=0.9.24 ...\n"
+ " ... either use grml releases >=2009.10 or switch to an older grml2usb version.")
+
+ if not os.path.exists(iso_mount + '/boot/grub/footer.cfg'):
+ logging.warning("Warning: Grml releases older than 2011.12 support only one flavour in grub.")
+
+ for expr in name, 'distri.cfg', \
+ defaults_file, 'grml.png', 'hd.cfg', 'isolinux.cfg', 'isolinux.bin', \
+ 'isoprompt.cfg', 'options.cfg', \
+ 'prompt.cfg', 'vesamenu.cfg', 'grml.png', '*.c32':
+ glob_and_copy(iso_mount + source_dir + expr, syslinux_target)
+
+ for filename in glob.glob1(syslinux_target, "*.c32"):
+ copy_if_exist(os.path.join(SYSLINUX_LIBS, filename), syslinux_target)
+
+ # copy the addons_*.cfg file to the new syslinux directory
+ glob_and_copy(iso_mount + source_dir + 'addon*.cfg', syslinux_target)
+ search_and_copy('hidden.cfg', iso_mount + source_dir, syslinux_target + "new_" + 'hidden.cfg')
-def install_iso_files(grml_flavour, iso_mount, target):
- """Copy files from ISO on given target"""
+ # copy all grub files from ISO
+ glob_and_copy(iso_mount + '/boot/grub/*', grub_target)
- # TODO
- # * make sure grml_flavour, iso_mount, target are set when the function is called, otherwise raise exception
- # * provide alternative search_file() if file information is stored in a config.ini file?
- # * catch "install: .. No space left on device" & CO
- # * abstract copy logic to make the code shorter and get rid of spaghettis ;)
+ # finally (after all GRUB files have been been installed) build static loopback.cfg
+ build_loopbackcfg(target)
+
+def install_iso_files(grml_flavour, iso_mount, device, target):
+ """Copy files from ISO to given target
+
+ @grml_flavour: name of grml flavour the configuration should be generated for
+ @iso_mount: path where a grml ISO is mounted on
+ @device: device/partition where bootloader should be installed to
+ @target: path where grml's main files should be copied to"""
+
+ global GRML_DEFAULT
+ GRML_DEFAULT = GRML_DEFAULT or grml_flavour
if options.dryrun:
- logging.info("Would copy files to %s", iso_mount)
return 0
elif not options.bootloaderonly:
logging.info("Copying files. This might take a while....")
- copy_system_files(grml_flavour, iso_mount, target)
- copy_grml_files(iso_mount, target)
+ try:
+ copy_system_files(grml_flavour, iso_mount, target)
+ copy_grml_files(grml_flavour, iso_mount, target)
+ except CriticalException as error:
+ logging.critical("Execution failed: %s", error)
+ sys.exit(1)
if not options.skipaddons:
- copy_addons(iso_mount, target)
+ if not search_file('addons', iso_mount):
+ logging.info("Could not find addons, therefore not installing.")
+ else:
+ copy_addons(iso_mount, target)
if not options.copyonly:
- copy_bootloader_files(iso_mount, target)
+ copy_bootloader_files(iso_mount, target, grml_flavour)
if not options.dryrun:
- handle_bootloader_config(grml_flavour, target) # FIXME
+ handle_bootloader_config(grml_flavour, device, target)
# make sure we sync filesystems before returning
proc = subprocess.Popen(["sync"])
proc.wait()
-def uninstall_files(device):
- """Get rid of all grml files on specified device
+def get_device_from_partition(partition):
+ device = partition
+ partition_number = None
+ if partition[-1].isdigit() and not RE_LOOP_DEVICE.match(partition):
+ m = RE_P_PARTITION.match(partition) or RE_PARTITION.match(partition)
+ if m:
+ device = m.group(1)
+ partition_number = int(m.group(2)) - 1
+ return (device, partition_number)
- @device: partition where grml2usb files should be removed from"""
- # TODO
- logging.critical("TODO: uninstalling files from %s not yet implement, sorry." % device)
+def get_flavour(flavour_str):
+ """Returns the flavour of a grml version string
+ """
+ return re.match(r'[\w-]*', flavour_str).group()
def identify_grml_flavour(mountpath):
@mountpath: path where the grml ISO is mounted to
@return: name of grml-flavour"""
- version_file = search_file('grml-version', mountpath)
+ version_files = search_file('grml-version', mountpath, lst_return=True)
- if version_file == "":
- logging.critical("Error: could not find grml-version file.")
- raise
+ if not version_files:
+ if mountpath.startswith("/lib/live/mount/medium"):
+ logging.critical("Error: could not find grml-version file.")
+ logging.critical("Looks like your system is running from RAM but required files are not available.")
+ logging.critical("Please either boot without toram=... or use boot option toram instead of toram=...")
+ else:
+ logging.critical("Error: could not find grml-version file.")
+ cleanup()
+ sys.exit(1)
+
+ flavours = []
+ logging.debug("version_files = %s", version_files)
+ for version_file in version_files:
+ tmpfile = None
+ try:
+ tmpfile = open(version_file, 'r')
+ for line in tmpfile.readlines():
+ flavours.append(get_flavour(line))
+ finally:
+ if tmpfile:
+ tmpfile.close()
+
+ return flavours
+
+
+def get_bootoptions(grml_flavour):
+ """Returns bootoptions for specific flavour
+
+ @grml_flavour: name of the grml_flavour
+ """
+ # do NOT write "None" in kernel cmdline
+ if not options.bootoptions:
+ bootopt = ""
+ else:
+ bootopt = " ".join(options.bootoptions)
+ bootopt = bootopt.replace("%flavour", grml_flavour)
+ return bootopt
- try:
- tmpfile = open(version_file, 'r')
- grml_info = tmpfile.readline()
- grml_flavour = re.match(r'[\w-]*', grml_info).group()
- except TypeError:
- raise
- except:
- logging.critical("Unexpected error:", sys.exc_info()[0])
- raise
- return grml_flavour
+def handle_grub_config(grml_flavour, device, target):
+ """Main handler for generating grub (v1 and v2) configuration
+ @grml_flavour: name of grml flavour the configuration should be generated for
+ @device: device/partition where grub should be installed to
+ @target: path of grub's configuration files"""
-def handle_bootloader_config(grml_flavour, target):
- """TODO"""
+ global UUID
- logging.debug("Generating grub configuration")
- #with open("...", "w") as f:
- #f.write("bla bla bal")
+ logging.debug("Updating grub configuration")
grub_target = target + '/boot/grub/'
- # should be present via copy_bootloader_files(), but make sure it exists:
- execute(mkdir, grub_target)
- grub_config_file = open(grub_target + 'menu.lst', 'w')
- grub_config_file.write(generate_grub_config(grml_flavour))
- grub_config_file.close()
- logging.info("Generating syslinux configuration")
+ bootid_re = re.compile("bootid=[\w_-]+")
+ live_media_path_re = re.compile("live-media-path=[\w_/-]+")
+
+ bootopt = get_bootoptions(grml_flavour)
+
+ remove_regexes = []
+ option_re = re.compile(r'(.*/boot/.*(linux26|vmlinuz).*)')
+
+ if options.removeoption:
+ for regex in options.removeoption:
+ remove_regexes.append(re.compile(regex))
+
+ shortname = get_shortname(grml_flavour)
+ for filename in glob.glob(grub_target + '*.cfg'):
+ for line in fileinput.input(filename, inplace=1):
+ line = line.rstrip("\r\n")
+ if option_re.search(line):
+ line = bootid_re.sub('', line)
+ if shortname in filename:
+ line = live_media_path_re.sub('', line)
+ line = line.rstrip() + ' live-media-path=/live/%s/ ' % (grml_flavour)
+ line = line.rstrip() + r' bootid=%s %s ' % (UUID, bootopt)
+ for regex in remove_regexes:
+ line = regex.sub(' ', line)
+ print(line)
+ fileinput.close()
+
+
+def initial_syslinux_config(target):
+ """Generates intial syslinux configuration
+
+ @target path of syslinux's configuration files"""
+
+ target = target + "/"
+ filename = target + "grmlmain.cfg"
+ if os.path.isfile(target + "grmlmain.cfg"):
+ return
+ data = open(filename, "w")
+ data.write(generate_main_syslinux_config())
+ data.close()
+
+ filename = target + "hiddens.cfg"
+ data = open(filename, "w")
+ data.write("include hidden.cfg\n")
+ data.close()
+
+
+def add_entry_if_not_present(filename, entry):
+ """Write entry into filename if entry is not already in the file
+
+ @filanme: name of the file
+ @entry: data to write to the file
+ """
+ data = open(filename, "a+")
+ for line in data:
+ if line == entry:
+ break
+ else:
+ data.write(entry)
+
+ data.close()
+
+
+def get_flavour_filename(flavour):
+ """Generate a iso9960 save filename out of the specified flavour
+
+ @flavour: grml flavour
+ """
+ return flavour.replace('-', '_')
+
+
+def adjust_syslinux_bootoptions(src, flavour):
+ """Adjust existing bootoptions of specified syslinux config to
+ grml2usb specific ones, e.g. change the location of the kernel...
+
+ @src: config file to alter
+ @flavour: grml flavour
+ """
+
+ append_re = re.compile("^(\s*append.*/boot/.*)$", re.I)
+ # flavour_re = re.compile("(label.*)(grml\w+)")
+ default_re = re.compile("(default.cfg)")
+ bootid_re = re.compile("bootid=[\w_-]+")
+ live_media_path_re = re.compile("live-media-path=[\w_/-]+")
+
+ bootopt = get_bootoptions(flavour)
+
+ regexe = []
+ option_re = None
+ if options.removeoption:
+ option_re = re.compile(r'/boot/.*/(initrd.gz|initrd.img)')
+
+ for regex in options.removeoption:
+ regexe.append(re.compile(r'%s' % regex))
+
+ for line in fileinput.input(src, inplace=1):
+ # line = flavour_re.sub(r'\1 %s-\2' % flavour, line)
+ line = default_re.sub(r'%s-\1' % flavour, line)
+ line = bootid_re.sub('', line)
+ line = live_media_path_re.sub('', line)
+ line = append_re.sub(r'\1 live-media-path=/live/%s/ ' % flavour, line)
+ line = append_re.sub(r'\1 boot=live %s ' % bootopt, line)
+ line = append_re.sub(r'\1 %s=%s ' % ("bootid", UUID), line)
+ if option_re and option_re.search(line):
+ for regex in regexe:
+ line = regex.sub(' ', line)
+ sys.stdout.write(line)
+ fileinput.close()
+
+
+def adjust_labels(src, replacement):
+ """Adjust the specified labels in the syslinux config file src with
+ specified replacement
+ """
+ label_re = re.compile("^(\s*label\s*) ([a-zA-Z0-9_-]+)", re.I)
+ for line in fileinput.input(src, inplace=1):
+ line = label_re.sub(replacement, line)
+ sys.stdout.write(line)
+ fileinput.close()
+
+
+def add_syslinux_entry(filename, grml_flavour):
+ """Add includes for a specific grml_flavour to the specified filename
+
+ @filename: syslinux config file
+ @grml_flavour: grml flavour to add
+ """
+
+ entry_filename = "option_%s.cfg" % grml_flavour
+ entry = "include %s\n" % entry_filename
+
+ add_entry_if_not_present(filename, entry)
+ path = os.path.dirname(filename)
+
+ data = open(path + "/" + entry_filename, "w")
+ data.write(generate_flavour_specific_syslinux_config(grml_flavour))
+ data.close()
+
+
+def modify_filenames(grml_flavour, target, filenames):
+ """Replace the standard filenames with the new ones
+
+ @grml_flavour: grml-flavour strin
+ @target: directory where the files are located
+ @filenames: list of filenames to alter
+ """
+ grml_filename = get_flavour_filename(grml_flavour)
+ for filename in filenames:
+ old_filename = "%s/%s" % (target, filename)
+ new_filename = "%s/%s_%s" % (target, grml_filename, filename)
+ os.rename(old_filename, new_filename)
+
+
+def remove_default_entry(filename):
+ """Remove the default entry from specified syslinux file
+
+ @filename: syslinux config file
+ """
+ default_re = re.compile("^(\s*menu\s*default\s*)$", re.I)
+ for line in fileinput.input(filename, inplace=1):
+ if default_re.match(line):
+ continue
+ sys.stdout.write(line)
+ fileinput.close()
+
+
+def handle_syslinux_config(grml_flavour, target):
+ """Main handler for generating syslinux configuration
+
+ @grml_flavour: name of grml flavour the configuration should be generated for
+ @target: path of syslinux's configuration files"""
+
+ logging.debug("Generating syslinux configuration")
syslinux_target = target + '/boot/syslinux/'
# should be present via copy_bootloader_files(), but make sure it exits:
execute(mkdir, syslinux_target)
syslinux_cfg = syslinux_target + 'syslinux.cfg'
# install main configuration only *once*, no matter how many ISOs we have:
- if os.path.isfile(syslinux_cfg):
- string = open(syslinux_cfg).readline()
- main_identifier = re.compile(".*main config generated at: %s.*" % re.escape(str(DATESTAMP)))
- if not re.match(main_identifier, string):
- syslinux_config_file = open(syslinux_cfg, 'w')
- logging.info("Notice: grml flavour %s is being installed as the default booting system." % grml_flavour)
- syslinux_config_file.write(generate_main_syslinux_config(grml_flavour, options.bootoptions))
- syslinux_config_file.close()
+ syslinux_config_file = open(syslinux_cfg, 'w')
+ syslinux_config_file.write("timeout 300\n")
+ syslinux_config_file.write("include vesamenu.cfg\n")
+ syslinux_config_file.close()
+
+ prompt_name = open(syslinux_target + 'promptname.cfg', 'w')
+ prompt_name.write('menu label S^yslinux prompt\n')
+ prompt_name.close()
+
+ initial_syslinux_config(syslinux_target)
+ flavour_filename = get_flavour_filename(grml_flavour)
+
+ if search_file('default.cfg', syslinux_target):
+ modify_filenames(grml_flavour, syslinux_target, ['grml.cfg', 'default.cfg'])
+
+ filename = search_file("new_hidden.cfg", syslinux_target)
+
+ # process hidden file
+ if not search_file("hidden.cfg", syslinux_target):
+ new_hidden = syslinux_target + "hidden.cfg"
+ os.rename(filename, new_hidden)
+ adjust_syslinux_bootoptions(new_hidden, grml_flavour)
else:
- syslinux_config_file = open(syslinux_cfg, 'w')
- syslinux_config_file.write(generate_main_syslinux_config(grml_flavour, options.bootoptions))
- syslinux_config_file.close()
-
- # install flavour specific configuration only *once* as well
- # kind of ugly - I'm pretty sure this could be smoother...
- flavour_config = True
- if os.path.isfile(syslinux_cfg):
- string = open(syslinux_cfg).readlines()
- logging.info("Notice: you can boot flavour %s using '%s' on the commandline." % (grml_flavour, grml_flavour))
- flavour = re.compile("grml2usb for %s: %s" % (re.escape(grml_flavour), re.escape(str(DATESTAMP))))
- for line in string:
- if flavour.match(line):
- flavour_config = False
-
- if flavour_config:
- syslinux_config_file = open(syslinux_cfg, 'a')
- syslinux_config_file.write(generate_flavour_specific_syslinux_config(grml_flavour, options.bootoptions))
- syslinux_config_file.close( )
-
- logging.debug("Generating isolinux/syslinux splash %s" % syslinux_target + 'boot.msg')
- isolinux_splash = open(syslinux_target + 'boot.msg', 'w')
- isolinux_splash.write(generate_isolinux_splash(grml_flavour))
- isolinux_splash.close( )
-
-
-def handle_iso(iso, device):
- """Main logic for mounting ISOs and copying files.
-
- @iso: full path to the ISO that should be installed to the specified device
- @device: partition where the specified ISO should be installed to"""
+ new_hidden_file = "%s/%s_hidden.cfg" % (syslinux_target, flavour_filename)
+ os.rename(filename, new_hidden_file)
+ adjust_labels(new_hidden_file, r'\1 %s-\2' % grml_flavour)
+ adjust_syslinux_bootoptions(new_hidden_file, grml_flavour)
+ entry = 'include %s_hidden.cfg\n' % flavour_filename
+ add_entry_if_not_present("%s/hiddens.cfg" % syslinux_target, entry)
- logging.info("Using ISO %s" % iso)
+ new_default = "%s_default.cfg" % (flavour_filename)
+ entry = 'include %s\n' % new_default
+ defaults_file = '%s/defaults.cfg' % syslinux_target
+ new_default_with_path = "%s/%s" % (syslinux_target, new_default)
+ new_grml_cfg = "%s/%s_grml.cfg" % (syslinux_target, flavour_filename)
- if os.path.isdir(iso):
- logging.critical("TODO: /live/image handling not yet implemented - sorry") # TODO
- sys.exit(1)
+ if os.path.isfile(defaults_file):
- iso_mountpoint = tempfile.mkdtemp()
- register_tmpfile(iso_mountpoint)
- remove_iso_mountpoint = True
+ # remove default menu entry in menu
+ remove_default_entry(new_default_with_path)
+
+ # adjust all labels for additional isos
+ adjust_labels(new_default_with_path, r'\1 %s' % grml_flavour)
+ adjust_labels(new_grml_cfg, r'\1 %s-\2' % grml_flavour)
+
+ # always adjust bootoptions
+ adjust_syslinux_bootoptions(new_default_with_path, grml_flavour)
+ adjust_syslinux_bootoptions(new_grml_cfg, grml_flavour)
+
+ add_entry_if_not_present("%s/defaults.cfg" % syslinux_target, entry)
+
+ add_syslinux_entry("%s/additional.cfg" % syslinux_target, flavour_filename)
- if not os.path.isfile(iso):
- logging.critical("Fatal: specified ISO %s could not be read" % iso)
- cleanup()
- sys.exit(1)
+
+def handle_bootloader_config(grml_flavour, device, target):
+ """Main handler for generating bootloader's configuration
+
+ @grml_flavour: name of grml flavour the configuration should be generated for
+ @device: device/partition where bootloader should be installed to
+ @target: path of bootloader's configuration files"""
+
+ global UUID
+ UUID = get_uuid(target)
+ if options.skipsyslinuxconfig:
+ logging.info("Skipping generation of syslinux configuration as requested.")
+ else:
+ try:
+ handle_syslinux_config(grml_flavour, target)
+ except CriticalException as error:
+ logging.critical("Fatal: %s", error)
+ sys.exit(1)
+
+ if options.skipgrubconfig:
+ logging.info("Skipping generation of grub configuration as requested.")
+ else:
+ try:
+ handle_grub_config(grml_flavour, device, target)
+ except CriticalException as error:
+ logging.critical("Fatal: %s", error)
+ sys.exit(1)
+
+
+def install(image, device):
+ """Install a grml image to the specified device
+
+ @image: directory or is file
+ @device: partition or directory to install the device
+ """
+ iso_mountpoint = image
+ remove_image_mountpoint = False
+ if os.path.isdir(image):
+ if options.force or os.path.exists(os.path.join(image, 'live')):
+ logging.info("Using %s as install base", image)
+ else:
+ q = raw_input("%s does not look like a Grml system. "
+ "Do you really want to use this image? y/N " % image)
+ if q.lower() == 'y':
+ logging.info("Using %s as install base", image)
+ else:
+ logging.info("Skipping install base %s", image)
+ else:
+ logging.info("Using ISO %s", image)
+ iso_mountpoint = tempfile.mkdtemp(prefix="grml2usb", dir=os.path.abspath(options.tmpdir))
+ register_tmpfile(iso_mountpoint)
+ remove_image_mountpoint = True
+ try:
+ mount(image, iso_mountpoint, ["-o", "loop,ro", "-t", "iso9660"])
+ except CriticalException as error:
+ logging.critical("Fatal: %s", error)
+ sys.exit(1)
try:
- mount(iso, iso_mountpoint, ["-o", "loop", "-t", "iso9660"])
- except CriticalException, error:
- logging.critical("Fatal: %s" % error)
- sys.exit(1)
+ install_grml(iso_mountpoint, device)
+ finally:
+ if remove_image_mountpoint:
+ try:
+ remove_mountpoint(iso_mountpoint)
+ except CriticalException as error:
+ cleanup()
+ raise
+
+
+def install_grml(mountpoint, device):
+ """Main logic for copying files of the currently running Grml system.
+
+ @mountpoint: directory where currently running live system resides (usually /lib/live/mount/medium)
+ @device: partition where the specified ISO should be installed to"""
+ device_mountpoint = device
if os.path.isdir(device):
- logging.info("Specified target is a directory, not mounting therefor.")
- device_mountpoint = device
+ logging.info("Specified device is a directory, therefore not mounting.")
remove_device_mountpoint = False
- # skip_mbr = True
else:
- device_mountpoint = tempfile.mkdtemp()
+ device_mountpoint = tempfile.mkdtemp(prefix="grml2usb")
register_tmpfile(device_mountpoint)
remove_device_mountpoint = True
try:
+ check_for_fat(device)
+ check_boot_flag(device)
+ mount(device, device_mountpoint, ['-o', 'utf8,iocharset=iso8859-1'])
+ except CriticalException as error:
mount(device, device_mountpoint, "")
- except CriticalException, error:
- logging.critical("Fatal: %s" % error)
- cleanup()
-
try:
- grml_flavour = identify_grml_flavour(iso_mountpoint)
- logging.info("Identified grml flavour \"%s\"." % grml_flavour)
- install_iso_files(grml_flavour, iso_mountpoint, device_mountpoint)
- except TypeError:
- logging.critical("Fatal: a critical error happend during execution (not a grml ISO?), giving up")
- sys.exit(1)
+ grml_flavours = identify_grml_flavour(mountpoint)
+ for flavour in set(grml_flavours):
+ if not flavour:
+ logging.warning("No valid flavour found, please check your iso")
+ logging.info("Identified grml flavour \"%s\".", flavour)
+ install_iso_files(flavour, mountpoint, device, device_mountpoint)
+ GRML_FLAVOURS.add(flavour)
finally:
- if os.path.isdir(iso_mountpoint) and remove_iso_mountpoint:
- unmount(iso_mountpoint, "")
- os.rmdir(iso_mountpoint)
- unregister_tmpfile(iso_mountpoint)
if remove_device_mountpoint:
- unmount(device_mountpoint, "")
- if os.path.isdir(device_mountpoint):
- os.rmdir(device_mountpoint)
- unregister_tmpfile(device_mountpoint)
+ remove_mountpoint(device_mountpoint)
+
+
+def remove_mountpoint(mountpoint):
+ """remove a registered mountpoint
+ """
+
+ try:
+ unmount(mountpoint, "")
+ if os.path.isdir(mountpoint):
+ os.rmdir(mountpoint)
+ unregister_tmpfile(mountpoint)
+ except CriticalException as error:
+ cleanup()
+ raise
def handle_mbr(device):
- """TODO"""
-
- # install MBR
- # if not options.mbr:
- # logging.info("You are NOT using the --mbr option. Consider using it if your device does not boot.")
- # else:
- # make sure we install MBR on /dev/sdX and not /dev/sdX#
-
- # make sure we have syslinux available
- # if options.mbr:
- if not options.skipmbr:
- if not which("syslinux") and not options.copyonly and not options.dryrun:
- logging.critical('Sorry, syslinux not available. Exiting.')
- logging.critical('Please install syslinux or consider using the --grub option.')
- sys.exit(1)
+ """Main handler for installing master boot record (MBR)
- if not options.skipmbr:
- if device[-1:].isdigit():
- mbr_device = re.match(r'(.*?)\d*$', device).group(1)
+ @device: device where the MBR should be installed to"""
- try:
- install_mbr(mbr_device)
- except IOError, error:
- logging.critical("Execution failed: %s", error)
- sys.exit(1)
- except Exception, error:
- logging.critical("Execution failed: %s", error)
- sys.exit(1)
+ if options.dryrun:
+ logging.info("Would install MBR")
+ return 0
+
+ mbr_device, partition_number = get_device_from_partition(device)
+ if partition_number is None:
+ logging.warn("Could not detect partition number, not activating partition")
+
+ # if we get e.g. /dev/loop1 as device we don't want to put the MBR
+ # into /dev/loop of course, therefore use /dev/loop1 as mbr_device
+ if mbr_device == "/dev/loop":
+ mbr_device = device
+ logging.info("Detected loop device - using %s as MBR device therefore", mbr_device)
+
+ mbrcode = GRML2USB_BASE + '/mbr/mbrldr'
+ if options.syslinuxmbr:
+ mbrcode = ""
+ mbr_locations = ('/usr/lib/syslinux/mbr.bin',
+ '/usr/lib/syslinux/bios/mbr.bin',
+ '/usr/share/syslinux/mbr.bin')
+ for mbrpath in mbr_locations:
+ if os.path.isfile(mbrpath):
+ mbrcode = mbrpath
+ break
+
+ if mbrcode is "":
+ str_locations = " or ".join(['"%s"' % l for l in mbr_locations])
+ logging.error('Cannot find syslinux MBR, install it at %s)',
+ str_locations)
+ raise CriticalException("syslinux MBR can not be found at %s."
+ % str_locations)
+ elif options.mbrmenu:
+ mbrcode = GRML2USB_BASE + '/mbr/mbrldr'
+
+ try:
+ install_mbr(mbrcode, mbr_device, partition_number, True)
+ except (IOError, Exception) as error:
+ logging.critical("Execution failed: %s", error)
+ sys.exit(1)
def handle_vfat(device):
- """TODO"""
+ """Check for FAT specific settings and options
+
+ @device: device that should checked / formated"""
# make sure we have mkfs.vfat available
- if options.fat16 and not options.force:
+ if options.fat16:
if not which("mkfs.vfat") and not options.copyonly and not options.dryrun:
logging.critical('Sorry, mkfs.vfat not available. Exiting.')
logging.critical('Please make sure to install dosfstools.')
sys.exit(1)
- # make sure the user is aware of what he is doing
- f = raw_input("Are you sure you want to format the device with a fat16 filesystem? y/N ")
- if f == "y" or f == "Y":
- logging.info("Note: you can skip this question using the option --force")
- mkfs_fat16(device)
+ if options.force:
+ print("Forcing mkfs.fat16 on %s as requested via option --force." % device)
else:
+ # make sure the user is aware of what he is doing
+ f = raw_input("Are you sure you want to format the specified partition with fat16? y/N ")
+ if f == "y" or f == "Y":
+ logging.info("Note: you can skip this question using the option --force")
+ else:
+ sys.exit(1)
+ try:
+ mkfs_fat16(device)
+ except CriticalException as error:
+ logging.critical("Execution failed: %s", error)
sys.exit(1)
# check for vfat filesystem
- if device is not None and not os.path.isdir(device):
+ if device is not None and not os.path.isdir(device) and options.syslinux:
try:
check_for_fat(device)
- except CriticalException, error:
+ except CriticalException as error:
logging.critical("Execution failed: %s", error)
sys.exit(1)
- if not check_for_usbdevice(device):
- print "Warning: the specified device %s does not look like a removable usb device." % device
+ if not os.path.isdir(device) and not check_for_usbdevice(device) and not options.force:
+ print("Warning: the specified device %s does not look like a removable usb device." % device)
f = raw_input("Do you really want to continue? y/N ")
- if f == "y" or f == "Y":
- pass
- else:
+ if f.lower() != "y":
sys.exit(1)
- # format partition:
- if options.fat16:
- mkfs_fat16(device)
-
def handle_compat_warning(device):
- """TODO"""
+ """Backwards compatible checks
+
+ @device: device that should be checked"""
# make sure we can replace old grml2usb script and warn user when using old way of life:
if device.startswith("/mnt/external") or device.startswith("/mnt/usb") and not options.force:
- print "Warning: the semantics of grml2usb has changed."
- print "Instead of using grml2usb /path/to/iso %s you might" % device
- print "want to use grml2usb /path/to/iso /dev/... instead."
- print "Please check out the grml2usb manpage for details."
+ print("Warning: the semantics of grml2usb has changed.")
+ print("Instead of using grml2usb /path/to/iso %s you might" % device)
+ print("want to use grml2usb /path/to/iso /dev/... instead.")
+ print("Please check out the grml2usb manpage for details.")
f = raw_input("Do you really want to continue? y/N ")
- if f == "y" or f == "Y":
- pass
- else:
+ if f.lower() != "y":
sys.exit(1)
def handle_logging():
- """TODO"""
+ """Log handling and configuration"""
+
+ if options.verbose and options.quiet:
+ parser.error("please use either verbose (--verbose) or quiet (--quiet) option")
+ FORMAT = "%(message)s"
if options.verbose:
FORMAT = "%(asctime)-15s %(message)s"
logging.basicConfig(level=logging.DEBUG, format=FORMAT)
elif options.quiet:
- FORMAT = "Critial: %(message)s"
logging.basicConfig(level=logging.CRITICAL, format=FORMAT)
else:
- FORMAT = "Info: %(message)s"
logging.basicConfig(level=logging.INFO, format=FORMAT)
def handle_bootloader(device):
- """TODO"""
+ """wrapper for installing bootloader
+
+ @device: device where bootloader should be installed to"""
+
# Install bootloader only if not using the --copy-only option
if options.copyonly:
logging.info("Not installing bootloader and its files as requested via option copyonly.")
+ elif os.path.isdir(device):
+ logging.info("Not installing bootloader as %s is a directory.", device)
else:
install_bootloader(device)
+def check_options(opts):
+ """Check compability of provided user opts
+
+ @opts option dict from OptionParser
+ """
+ if opts.grubmbr and not opts.grub:
+ raise CriticalException("--grub-mbr requires --grub option.")
+
+
+def check_programs():
+ """check if all needed programs are installed"""
+ if options.grub:
+ global GRUB_INSTALL
+ GRUB_INSTALL = which("grub-install") or which("grub2-install")
+ if not GRUB_INSTALL:
+ logging.critical("Fatal: grub-install not available (please install the "
+ + "grub package or drop the --grub option)")
+ sys.exit(1)
+
+ if options.syslinux:
+ if not which("syslinux"):
+ logging.critical("Fatal: syslinux not available (please install the "
+ + "syslinux package or use the --grub option)")
+ sys.exit(1)
+
+ if not which("rsync"):
+ logging.critical("Fatal: rsync not available, can not continue - sorry.")
+ sys.exit(1)
+
+
+def load_loop():
+ """Runs modprobe loop and throws away it's output"""
+ if not which("modprobe"):
+ logging.critical("Fatal: modprobe not available, can not continue - sorry.")
+ logging.critical("Hint: is /sbin missing in PATH?")
+ sys.exit(1)
+
+ proc = subprocess.Popen(["modprobe", "loop"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+ proc.wait()
+
+
def main():
"""Main function [make pylint happy :)]"""
- if options.version:
- print os.path.basename(sys.argv[0]) + " " + PROG_VERSION
- sys.exit(0)
+ try:
+ if options.version:
+ print(os.path.basename(sys.argv[0]) + " " + PROG_VERSION)
+ sys.exit(0)
- if len(args) < 2:
- parser.error("invalid usage")
+ if len(args) < 2:
+ parser.error("invalid usage")
- # log handling
- handle_logging()
+ # log handling
+ handle_logging()
- # make sure we have the appropriate permissions
- check_uid_root()
+ # make sure we have the appropriate permissions
+ check_uid_root()
- if options.dryrun:
- logging.info("Running in simulate mode as requested via option dry-run.")
+ check_options(options)
+
+ load_loop()
+
+ logging.info("Executing grml2usb version %s", PROG_VERSION)
+
+ if options.dryrun:
+ logging.info("Running in simulation mode as requested via option dry-run.")
+
+ check_programs()
- # specified arguments
- device = args[len(args) - 1]
- isos = args[0:len(args) - 1]
+ # specified arguments
+ device = os.path.realpath(args[len(args) - 1])
+ isos = args[0:len(args) - 1]
- # provide upgrade path
- handle_compat_warning(device)
+ if not os.path.isdir(device):
+ if device[-1:].isdigit():
+ if int(device[-1:]) > 4 or device[-2:].isdigit():
+ logging.critical("Fatal: installation on partition number >4 not supported. (BIOS won't support it.)")
+ sys.exit(1)
- # check for vfat partition
- handle_vfat(device)
+ # provide upgrade path
+ handle_compat_warning(device)
- # main operation (like installing files)
- for iso in isos:
- handle_iso(iso, device)
+ # check for vfat partition
+ handle_vfat(device)
- # install mbr
- handle_mbr(device)
+ # main operation (like installing files)
+ for iso in isos:
+ install(iso, device)
- handle_bootloader(device)
+ # install mbr
+ is_superfloppy = not device[-1:].isdigit()
+ if is_superfloppy:
+ logging.info("Detected superfloppy format - not installing MBR")
- # finally be politely :)
- logging.info("Finished execution of grml2usb (%s). Have fun with your grml system." % PROG_VERSION)
+ if not options.skipmbr and not os.path.isdir(device) and not is_superfloppy:
+ handle_mbr(device)
+
+ handle_bootloader(device)
+
+ logging.info("Note: grml flavour %s was installed as the default booting system.", GRML_DEFAULT)
+
+ for flavour in GRML_FLAVOURS:
+ logging.info("Note: you can boot flavour %s using '%s' on the commandline.", flavour, flavour)
+
+ # finally be polite :)
+ logging.info("Finished execution of grml2usb (%s). Have fun with your Grml system.", PROG_VERSION)
+
+ except Exception as error:
+ logging.critical("Fatal: %s", str(error))
+ sys.exit(1)
if __name__ == "__main__":