grml2usb
~~~~~~~~
-This script installs a grml system to a USB device
+This script installs a grml system (running system / ISO[s]) to a USB device
:copyright: (c) 2009 by Michael Prokop <mika@grml.org>
:license: GPL v2 or any later version
TODO
----
+* code improvements:
+ - improve error handling :)
+ - get rid of all TODOs in code :)
+ - use 'with open("...", "w") as f: ... f.write("...")'
+ - simplify functions/code as much as possible -> audit
* implement missing options (--kernel, --initrd, --uninstall,...)
-* improve error handling :)
-* get rid of "if not dry_run" inside code/functions
-* implement mount handling
-* log wrapper (-> logging module)
-* implement logic for storing information about copied files
- -> register every single file?
-* trap handling (like unmount devices when interrupting?)
-* get rid of all TODOs in code :)
-* graphical version
+* validate partition schema/layout: is the partition schema ok and the bootable flag set?
+* 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
+* extend flavour's syslinux configuration
+* graphical version? :)
"""
+from __future__ import with_statement
import os, re, subprocess, sys, tempfile
from optparse import OptionParser
from os.path import exists, join, abspath
from os import pathsep
-# TODO string.split() is deprecated - replace?
-# -> http://docs.python.org/library/string.html#deprecated-string-functions
-from string import split
+from inspect import isroutine, isclass
+import logging
+import datetime, time
+# global variables
PROG_VERSION = "0.0.1"
+skip_mbr = False # By default we don't want to skip it; TODO - can we get rid of that?
+mounted = set() # register mountpoints
+tmpfiles = set() # register tmpfiles
+datestamp= time.mktime(datetime.datetime.now().timetuple()) # unique identifier for syslinux.cfg
# cmdline parsing
-# TODO
-# * --bootloader-only?
-usage = "Usage: %prog [options] <ISO[s]> <partition>\n\
+usage = "Usage: %prog [options] <[ISO[s] | /live/image]> </dev/ice>\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 a grml ISO or a running grml system,\n\
+Make sure you have at least a grml ISO or a running grml system (/live/image),\n\
syslinux (just run 'aptitude install syslinux' on Debian-based systems)\n\
and root access."
parser.add_option("--bootoptions", dest="bootoptions",
action="store", type="string",
help="use specified bootoptions as defaut")
+parser.add_option("--bootloader-only", dest="bootloaderonly", action="store_true",
+ help="do not copy files only but just install a bootloader")
parser.add_option("--copy-only", dest="copyonly", action="store_true",
help="copy files only and do not install bootloader")
parser.add_option("--dry-run", dest="dryrun", action="store_true",
help="install specified kernel instead of the default")
parser.add_option("--mbr", dest="mbr", action="store_true",
help="install master boot record (MBR) on the device")
+parser.add_option("--quiet", dest="quiet", action="store_true",
+ help="do not output anything than errors on console")
parser.add_option("--squashfs", dest="squashfs", action="store", type="string",
help="install specified squashfs file instead of the default")
parser.add_option("--uninstall", dest="uninstall", action="store_true",
(options, args) = parser.parse_args()
+def cleanup():
+ """TODO
+ """
+
+ logging.info("Cleaning up")
+ proc = subprocess.Popen(["sync"])
+ proc.wait()
+
+ try:
+ for device in mounted:
+ unmount(device, "")
+ # ignore: RuntimeError: Set changed size during iteration
+ except:
+ pass
+
+def get_function_name(obj):
+ if not (isroutine(obj) or isclass(obj)):
+ obj = type(obj)
+ return obj.__module__ + '.' + obj.__name__
+
+
def execute(f, *args):
"""Wrapper for executing a command. Either really executes
the command (default) or when using --dry-run commandline option
just displays what would be executed."""
# demo: execute(subprocess.Popen, (["ls", "-la"]))
if options.dryrun:
- print "would execute %s(%s) now" % (f, args)
+ logging.debug('dry-run only: %s(%s)' % (get_function_name(f), ', '.join(map(repr, args))))
else:
return f(*args)
def search_file(filename, search_path='/bin' + pathsep + '/usr/bin'):
"""Given a search path, find file"""
file_found = 0
- paths = split(search_path, pathsep)
+ paths = search_path.split(pathsep)
for path in paths:
for current_dir, directories, files in os.walk(path):
if exists(join(current_dir, filename)):
def install_syslinux(device, dry_run=False):
# TODO
"""Install syslinux on specified device."""
- print("debug: syslinux %s [TODO]") % device
- # syslinux -d boot/isolinux /dev/usb-sdb1
+ # syslinux -d boot/isolinux /dev/sdb1
+ logging.info("Installing syslinux as bootloader")
+ 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"
def generate_grub_config(grml_flavour):
# * what about systems using grub2 without having grub1 available?
# * support grub2?
- grml_name = grml_flavour
-
return("""\
# misc options:
timeout 30
background = FFCC33
# define entries:
-title %(grml_name)s - Default boot (using 1024x768 framebuffer)
-kernel /boot/release/%(grml_name)s/linux26 apm=power-off lang=us vga=791 quiet boot=live nomce module=%(grml_name)s
-initrd /boot/release/%(grml_name)s/initrd.gz
+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 :)
""" % locals())
grml_name = grml_flavour
return("""\
-\ f17\f\18/boot/isolinux/logo.16
+\ f17\f\18/boot/syslinux/logo.16
Some information and boot options available via keys F2 - F10. http://grml.org/
%(grml_name)s
""" % locals())
-def generate_syslinux_config(grml_flavour):
- """Generate configuration for use in syslinux.cfg"""
+def generate_main_syslinux_config(grml_flavour, grml_bootoptions):
+ """Generate main configuration for use in syslinux.cfg"""
# TODO
# * install main part of configuration just *once* and append
# * unify isolinux and syslinux setup ("INCLUDE /boot/...")
# as far as possible
- grml_name = grml_flavour
+ local_datestamp = datestamp
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/isolinux/boot.msg
-F1 /boot/isolinux/boot.msg
-F2 /boot/isolinux/f2
-F3 /boot/isolinux/f3
-F4 /boot/isolinux/f4
-F5 /boot/isolinux/f5
-F6 /boot/isolinux/f6
-F7 /boot/isolinux/f7
-F8 /boot/isolinux/f8
-F9 /boot/isolinux/f9
-F10 /boot/isolinux/f10
-
-LABEL grml
-KERNEL /boot/release/%(grml_name)s/linux26
-APPEND initrd=/boot/release/%(grml_name)s/initrd.gz apm=power-off lang=us boot=live nomce module=%(grml_name)s
+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
+
+# flavour specific configuration for grml
+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 %(grml_bootoptions)s
-# TODO: extend configuration :)
+""" % locals())
+
+def generate_flavour_specific_syslinux_config(grml_flavour, bootoptions):
+ """Generate flavour specific configuration for use in syslinux.cfg"""
+
+ local_datestamp = datestamp
+
+ return("""\
+
+# 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
""" % locals())
def install_grub(device, dry_run=False):
"""Install grub on specified device."""
- print("grub-install %s") % device
+ logging.critical("TODO: grub-install %s" % device)
def install_bootloader(partition, dry_run=False):
"""Install bootloader on device."""
+
# Install bootloader on the device (/dev/sda),
- # not on the partition itself (/dev/sda1)
- if partition[-1:].isdigit():
- device = re.match(r'(.*?)\d*$', partition).group(1)
- else:
- device = partition
+ # not on the partition itself (/dev/sda1)?
+# if partition[-1:].isdigit():
+# device = re.match(r'(.*?)\d*$', partition).group(1)
+# else:
+# device = partition
if options.grub:
- install_grub(device, dry_run)
+ install_grub(partition, dry_run)
else:
- install_syslinux(device, dry_run)
+ install_syslinux(partition, dry_run)
def is_writeable(device):
if not is_writeable(device):
raise IOError, "device not writeable for user"
- lilo = './lilo/lilo.static' # FIXME
+ lilo = '/grml/git/grml2usb/lilo/lilo.static' # FIXME
if not is_exe(lilo):
raise Exception, "lilo executable not available."
# to support -A for extended partitions:
- print("debug: ./lilo/lilo.static -S /dev/null -M %s ext") % device
- proc = subprocess.Popen(["./lilo/lilo.static", "-S", "/dev/null", "-M", device, "ext"])
+ 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"
# activate partition:
- print("debug: ./lilo/lilo.static -S /dev/null -A %s 1") % device
+ logging.debug("%s -S /dev/null -A %s 1" % (lilo, device))
if not dry_run:
- proc = subprocess.Popen(["./lilo/lilo.static", "-S", "/dev/null", "-A", device, "1"])
+ proc = subprocess.Popen([lilo, "-S", "/dev/null", "-A", device, "1"])
proc.wait()
if proc.returncode != 0:
raise Exception, "error executing lilo"
# lilo's mbr is broken, use the one from syslinux instead:
- print("debug: cat /usr/lib/syslinux/mbr.bin > %s") % device
+ logging.debug("cat /usr/lib/syslinux/mbr.bin > %s" % device)
if not dry_run:
try:
- # TODO use Popen instead?
+ # TODO -> use Popen instead?
retcode = subprocess.call("cat /usr/lib/syslinux/mbr.bin > "+ device, shell=True)
if retcode < 0:
- print >> sys.stderr, "Error copying MBR to device", -retcode
+ logging.critical("Error copying MBR to device (%s)" % retcode)
except OSError, error:
- print >> sys.stderr, "Execution failed:", error
+ logging.critical("Execution failed:", error)
+
+
+def register_tmpfile(path):
+ """TODO
+ """
+
+ tmpfiles.add(path)
+
+
+def unregister_tmpfile(path):
+ """TODO
+ """
+
+ if path in tmpfiles:
+ tmpfiles.remove(path)
+
+
+def register_mountpoint(target):
+ """TODO
+ """
+
+ mounted.add(target)
+
+
+def unregister_mountpoint(target):
+ """TODO
+ """
+
+ if target in mounted:
+ mounted.remove(target)
def mount(source, target, options):
@target: directory where the ISO should be mounted to
@options: mount specific options"""
- print("debug: mount %s %s %s [TODO]") % (options, source, target)
+# notice: dry_run does not work here, as we have to locate files, identify flavour,...
+ logging.debug("mount %s %s %s" % (options, source, target))
+ proc = subprocess.Popen(["mount"] + list(options) + [source, target])
+ proc.wait()
+ if proc.returncode != 0:
+ raise Exception, "Error executing mount"
+ else:
+ logging.debug("register_mountpoint(%s)" % target)
+ register_mountpoint(target)
+def unmount(target, options):
+ """Unmount specified target
-def unmount(directory):
- """Unmount specified directory
+ @target: target where something is mounted on and which should be unmounted
+ @options: options for umount command"""
- @directory: directory where something is mounted on and which should be unmounted"""
+ # make sure we unmount only already mounted targets
+ target_unmount = False
+ mounts = open('/proc/mounts').readlines()
+ mountstring = re.compile(".*%s.*" % re.escape(target))
+ for line in mounts:
+ if re.match(mountstring, line):
+ target_unmount = True
- print("debug: umount %s [TODO]") % directory
+ if not target_unmount:
+ logging.debug("%s not mounted anymore" % target)
+ else:
+ logging.debug("umount %s %s" % (list(options), target))
+ proc = subprocess.Popen(["umount"] + list(options) + [target])
+ proc.wait()
+ if proc.returncode != 0:
+ raise Exception, "Error executing umount"
+ else:
+ logging.debug("unregister_mountpoint(%s)" % target)
+ unregister_mountpoint(target)
+
+
+def check_for_usbdevice(device):
+ """Check whether the specified device is a removable USB device
+
+ @device: device name, like /dev/sda1 or /dev/sda
+ """
+
+ 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":
+ return 0
+ else:
+ return 1
-def check_for_vat(partition):
+def check_for_fat(partition):
"""Check whether specified partition is a valid VFAT/FAT16 filesystem
@partition: device name of partition"""
try:
- udev_info = subprocess.Popen(["/lib/udev/vol_id", "-t",
- partition],stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+ udev_info = subprocess.Popen(["/lib/udev/vol_id", "-t", partition],stdout=subprocess.PIPE, stderr=subprocess.PIPE)
filesystem = udev_info.communicate()[0].rstrip()
if udev_info.returncode == 2:
- print("failed to read device %s - wrong UID / permissions?") % partition
- return 1
+ raise Exception, "Failed to read device %s - wrong UID / permissions?" % partition
if filesystem != "vfat":
- return(1)
-
- # TODO
- # * check for ID_FS_VERSION=FAT16 as well?
+ raise Exception, "Device %s does not contain a FAT16 partition" % partition
except OSError:
- print("Sorry, /lib/udev/vol_id not available.")
- return 1
+ raise Exception, "Sorry, /lib/udev/vol_id not available."
def mkdir(directory):
# * catch "install: .. No space left on device" & CO
# * abstract copy logic to make the code shorter and get rid of spaghetti ;)
- print("Copying files. This might take a while....")
+ if not options.bootloaderonly:
+ logging.info("Copying files. This might take a while....")
- squashfs = search_file(grml_flavour + '.squashfs', iso_mount)
- squashfs_target = target + '/live/'
- execute(mkdir, squashfs_target)
+ squashfs = search_file(grml_flavour + '.squashfs', iso_mount)
+ squashfs_target = target + '/live/'
+ execute(mkdir, squashfs_target)
- # use install(1) for now to make sure we can write the files afterwards as normal user as well
- print("cp %s %s") % (squashfs, target + '/live/' + grml_flavour + '.squashfs')
- execute(subprocess.Popen, ["install", "--mode=664", squashfs, squashfs_target + grml_flavour + ".squashfs"])
+ # 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 = execute(subprocess.Popen, ["install", "--mode=664", squashfs, squashfs_target + grml_flavour + ".squashfs"])
+ proc.wait()
- filesystem_module = search_file('filesystem.module', iso_mount)
- print("cp %s %s") % (filesystem_module, squashfs_target + grml_flavour + '.module')
- execute(subprocess.Popen, ["install", "--mode=664", filesystem_module, squashfs_target + grml_flavour + '.module'])
+ filesystem_module = search_file('filesystem.module', iso_mount)
+ logging.debug("cp %s %s" % (filesystem_module, squashfs_target + grml_flavour + '.module'))
+ proc = execute(subprocess.Popen, ["install", "--mode=664", filesystem_module, squashfs_target + grml_flavour + '.module'])
+ proc.wait()
- release_target = target + '/boot/release/' + grml_flavour
- execute(mkdir, release_target)
+ release_target = target + '/boot/release/' + grml_flavour
+ execute(mkdir, release_target)
- kernel = search_file('linux26', iso_mount)
- print("cp linux26 %s") % release_target + '/linux26'
- execute(subprocess.Popen, ["install", "--mode=664", kernel, release_target + '/linux26'])
+ kernel = search_file('linux26', iso_mount)
+ logging.debug("cp %s %s" % (kernel, release_target + '/linux26'))
+ proc = execute(subprocess.Popen, ["install", "--mode=664", kernel, release_target + '/linux26'])
+ proc.wait()
- initrd = search_file('initrd.gz', iso_mount)
- print("debug: copy initrd to %s") % release_target + '/initrd.gz'
- execute(subprocess.Popen, ["install", "--mode=664", initrd, release_target + '/initrd.gz'])
+ initrd = search_file('initrd.gz', iso_mount)
+ logging.debug("cp %s %s" % (initrd, release_target + '/initrd.gz'))
+ proc = execute(subprocess.Popen, ["install", "--mode=664", initrd, release_target + '/initrd.gz'])
+ proc.wait()
if not options.copyonly:
- isolinux_target = target + '/boot/isolinux/'
- execute(mkdir, isolinux_target)
+ syslinux_target = target + '/boot/syslinux/'
+ execute(mkdir, syslinux_target)
logo = search_file('logo.16', iso_mount)
- print("debug: copy logo.16 to %s") % isolinux_target + 'logo.16'
- execute(subprocess.Popen, ["install", "--mode=664", logo, isolinux_target + 'logo.16'])
+ logging.debug("cp %s %s" % (logo, syslinux_target + 'logo.16'))
+ proc = execute(subprocess.Popen, ["install", "--mode=664", logo, syslinux_target + 'logo.16'])
+ proc.wait()
for ffile in 'f2', 'f3', 'f4', 'f5', 'f6', 'f7', 'f8', 'f9', 'f10':
bootsplash = search_file(ffile, iso_mount)
- print("debug: copy %s to %s") % (bootsplash, isolinux_target + ffile)
- execute(subprocess.Popen, ["install", "--mode=664", bootsplash, isolinux_target + ffile])
+ logging.debug("cp %s %s" % (bootsplash, syslinux_target + ffile))
+ proc = execute(subprocess.Popen, ["install", "--mode=664", bootsplash, syslinux_target + ffile])
+ proc.wait()
grub_target = target + '/boot/grub/'
execute(mkdir, grub_target)
- print("debug: copy grub/splash.xpm.gz to %s") % grub_target + 'splash.xpm.gz'
- execute(subprocess.Popen, ["install", "--mode=664", 'grub/splash.xpm.gz', grub_target + 'splash.xpm.gz'])
+ logging.debug("cp /grml/git/grml2usb/grub/splash.xpm.gz %s" % grub_target + 'splash.xpm.gz') # FIXME - path of grub
+ proc = execute(subprocess.Popen, ["install", "--mode=664", '/grml/git/grml2usb/grub/splash.xpm.gz', grub_target + 'splash.xpm.gz']) # FIXME
+ proc.wait()
- print("debug: copy grub/stage2_eltorito to %s") % grub_target + 'stage2_eltorito'
- execute(subprocess.Popen, ["install", "--mode=664", 'grub/stage2_eltorito', grub_target + 'stage2_eltorito'])
+ logging.debug("cp /grml/git/grml2usb/grub/stage2_eltorito to %s" % grub_target + 'stage2_eltorito') # FIXME - path of grub
+ proc = execute(subprocess.Popen, ["install", "--mode=664", '/grml/git/grml2usb/grub/stage2_eltorito', grub_target + 'stage2_eltorito']) # FIXME
+ proc.wait()
- print("debug: generating grub configuration %s") % grub_target + 'menu.lst'
if not dry_run:
+ logging.debug("Generating grub configuration")
+ #with open("...", "w") as f:
+ #f.write("bla bla bal")
grub_config_file = open(grub_target + 'menu.lst', 'w')
grub_config_file.write(generate_grub_config(grml_flavour))
- grub_config_file.close( )
-
- syslinux_target = target + '/boot/isolinux/'
- execute(mkdir, syslinux_target)
-
- print("debug: generating syslinux configuration %s") % syslinux_target + 'syslinux.cfg'
- if not dry_run:
- syslinux_config_file = open(syslinux_target + 'syslinux.cfg', 'w')
- syslinux_config_file.write(generate_syslinux_config(grml_flavour))
- syslinux_config_file.close( )
-
- print("debug: generating isolinux/syslinux splash %s") % syslinux_target + 'boot.msg'
- if not dry_run:
+ grub_config_file.close()
+
+ logging.info("Generating syslinux configuration")
+ 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()
+ 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
+ # 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( )
+ # 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"""
# TODO
- print("TODO: %s") % device
+ logging.critical("TODO: %s" % device)
def identify_grml_flavour(mountpath):
version_file = search_file('grml-version', mountpath)
if version_file == "":
- print("gucku")
+ logging.critical("Error: could not find grml-version file.")
+ raise
try:
tmpfile = open(version_file, 'r')
except TypeError:
raise
except:
- print "Unexpected error:", sys.exc_info()[0]
+ logging.critical("Unexpected error:", sys.exc_info()[0])
raise
return grml_flavour
+def handle_iso(iso, device):
+ """TODO
+ """
+
+ logging.info("Using ISO %s" % iso)
+
+ if os.path.isdir(iso):
+ logging.critical("TODO: /live/image handling not yet implemented") # TODO
+ else:
+ iso_mountpoint = tempfile.mkdtemp()
+ register_tmpfile(iso_mountpoint)
+ remove_iso_mountpoint = True
+
+ mount(iso, iso_mountpoint, ["-o", "loop", "-t", "iso9660"])
+
+ if os.path.isdir(device):
+ logging.info("Specified target is a directory, not mounting therefore.")
+ device_mountpoint = device
+ remove_device_mountpoint = False
+ skip_mbr = True
+
+ else:
+ device_mountpoint = tempfile.mkdtemp()
+ register_tmpfile(device_mountpoint)
+ remove_device_mountpoint = True
+ try:
+ mount(device, device_mountpoint, "")
+ except Exception, error:
+ logging.critical("Fatal: %s" % error)
+ cleanup()
+
+ try:
+ grml_flavour = identify_grml_flavour(iso_mountpoint)
+ logging.info("Identified grml flavour \"%s\"." % grml_flavour)
+ copy_grml_files(grml_flavour, iso_mountpoint, device_mountpoint, dry_run=options.dryrun)
+ except TypeError:
+ logging.critical("Fatal: a critical error happend during execution, giving up")
+ sys.exit(1)
+ 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)
+
+ # grml_flavour_short = grml_flavour.replace('-','')
+ # logging.debug("grml_flavour_short = %s" % grml_flavour_short)
+
def main():
"""Main function [make pylint happy :)]"""
if options.version:
- print("%s %s")% (os.path.basename(sys.argv[0]), PROG_VERSION)
+ print os.path.basename(sys.argv[0]) + " " + PROG_VERSION
sys.exit(0)
if len(args) < 2:
parser.error("invalid usage")
+ # log handling
+ 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)
+
if options.dryrun:
- print("Running in simulate mode as requested via option dry-run.")
+ logging.info("Running in simulate mode as requested via option dry-run.")
else:
check_uid_root()
+ # specified arguments
device = args[len(args) - 1]
isos = args[0:len(args) - 1]
- if not which("syslinux"):
- print >> sys.stderr, 'Sorry, syslinux not available. Exiting.'
- print >> sys.stderr, 'Please install syslinux or consider using the --grub option.'
- sys.exit(1)
-
- # TODO
- # * check for valid blockdevice, vfat and mount functions
- # if device is not None:
- # check_for_vat(device)
- # mount_target(partition)
-
- # TODO
- # * it doesn't need to be a ISO, could be /live/image as well
- for iso in isos:
- print("debug: iso = %s") % iso
-
- if os.path.isdir(iso):
- print("TODO: /live/image handling not yet implemented") # TODO
+ # 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"):
+ 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:
- iso_mountpoint = '/mnt/test' # FIXME
- # iso_mount = tempfile.mkdtemp()
- mount(iso, iso_mountpoint, "-o loop -t iso9660")
- # device_mountpoint = '/mnt/usb-sdb1'
- # device_mountpoint = tempfile.mkdtemp()
- device_mountpoint = '/dev/shm/grml2usb' # FIXME
- mount(device, device_mountpoint, "")
-
- try:
- grml_flavour = identify_grml_flavour(iso_mountpoint)
- print("Identified grml flavour \"%s\".") % grml_flavour
- except TypeError:
- print("Fatal: could not identify grml flavour, sorry.")
- sys.exit(1)
-
- # grml_flavour_short = grml_flavour.replace('-','')
- #p rint("debug: grml_flavour_short = %s") % grml_flavour_short
+ sys.exit(1)
- copy_grml_files(grml_flavour, iso_mountpoint, device_mountpoint, dry_run=options.dryrun)
+ # make sure we have syslinux available
+ if not which("syslinux") and not options.copyonly:
+ logging.critical('Sorry, syslinux not available. Exiting.')
+ logging.critical('Please install syslinux or consider using the --grub option.')
+ sys.exit(1)
- unmount(device_mountpoint) # TODO
- unmount(iso_mountpoint) # TODO
+ # check for vfat filesystem
+ if device is not None and not os.path.isdir(device):
+ try:
+ check_for_fat(device)
+ except Exception, error:
+ logging.critical("Execution failed: %s", error)
+ sys.exit(1)
- #if os.path.isdir(target):
- # os.rmdir(target)
- #if os.path.isdir(iso_mount):
- # os.rmdir(iso_mount)
+ if not check_for_usbdevice(device):
+ 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:
+ sys.exit(1)
+ # main operation (like installing files)
+ for iso in isos:
+ handle_iso(iso, device)
- if options.mbr:
+ # install MBR
+ if not options.mbr or skip_mbr:
+ logging.info("You are not using the --mbr option. Consider using it to get a working USB setup.")
+ else:
# make sure we install MBR on /dev/sdX and not /dev/sdX#
if device[-1:].isdigit():
- device = re.match(r'(.*?)\d*$', device).group(1)
+ mbr_device = re.match(r'(.*?)\d*$', device).group(1)
try:
- install_mbr(device, dry_run=options.dryrun)
+ install_mbr(mbr_device, dry_run=options.dryrun)
except IOError, error:
- print >> sys.stderr, "Execution failed:", error
+ logging.critical("Execution failed: %s", error)
sys.exit(1)
except Exception, error:
- print >> sys.stderr, "Execution failed:", error
+ logging.critical("Execution failed: %s", error)
sys.exit(1)
+ # Install bootloader only if not using the --copy-only option
if options.copyonly:
- print("Not installing bootloader and its files as requested via option copyonly.")
+ logging.info("Not installing bootloader and its files as requested via option copyonly.")
else:
install_bootloader(device, dry_run=options.dryrun)
- print("Finished execution of grml2usb (%s). Have fun with your grml system.") % PROG_VERSION
+ # finally be politely :)
+ logging.info("Finished execution of grml2usb (%s). Have fun with your grml system." % PROG_VERSION)
if __name__ == "__main__":
- main()
+ try:
+ main()
+ except KeyboardInterrupt:
+ logging.info("Received KeyboardInterrupt")
+ cleanup()
## END OF FILE #################################################################
# vim:foldmethod=marker expandtab ai ft=python tw=120 fileencoding=utf-8
projects / grml2usb.git / blobdiff