grml2usb
~~~~~~~~
-This script installs a grml system (running system / 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>
:license: GPL v2 or any later version
TODO
----
-* implement missing options (--kernel, --initrd, --uninstall,...)
-* improve error handling :)
-* get rid of "if not dry_run" inside code/functions
-* implement mount handling
-* 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? :)
+* install memtest, dos, grub,... to /boot/addons/
+* copy grml files to /grml/
+* implement missing options (--grub, --kernel, --initrd, --squashfs, --uninstall)
+* code improvements:
+ - improve error handling wherever possible :)
+ - get rid of all TODOs in code
+ - use 'with open("...", "w") as f: ... f.write("...")'
+ - simplify functions/code as much as possible (move stuff to further functions) -> audit
+* validate partition schema/layout: is the partition schema ok and the bootable flag set? (--validate?)
+* 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
+* graphical version? any volunteers? :)
"""
from __future__ import with_statement
from os import pathsep
from inspect import isroutine, isclass
import logging
+import datetime, time
+# global variables
PROG_VERSION = "0.0.1"
+skip_mbr = True # hm, 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
usage = "Usage: %prog [options] <[ISO[s] | /live/image]> </dev/ice>\n\
parser = OptionParser(usage=usage)
parser.add_option("--bootoptions", dest="bootoptions",
action="store", type="string",
- help="use specified bootoptions as defaut")
+ help="use specified bootoptions as default")
parser.add_option("--bootloader-only", dest="bootloaderonly", action="store_true",
- help="do not copy files only but just install a bootloader")
+ help="do not copy files but just install a bootloader")
parser.add_option("--copy-only", dest="copyonly", action="store_true",
- help="copy files only and do not install bootloader")
+ help="copy files only but do not install bootloader")
parser.add_option("--dry-run", dest="dryrun", action="store_true",
- help="do not actually execute any commands")
+ help="avoid executing commands")
parser.add_option("--fat16", dest="fat16", action="store_true",
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")
+ 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")
+ 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")
+ 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("--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")
+ help="do not output anything but just errors on console")
parser.add_option("--squashfs", dest="squashfs", action="store", type="string",
- help="install specified squashfs file instead of the default")
+ help="install specified squashfs file instead of the default [TODO]")
parser.add_option("--uninstall", dest="uninstall", action="store_true",
- help="remove grml ISO files")
+ help="remove grml ISO files from specified device [TODO]")
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()
+def cleanup():
+ """Cleanup function to make sure there aren't any mounted devices left behind.
+ """
+
+ logging.info("Cleaning up before exiting...")
+ 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"]))
+ # usage: execute(subprocess.Popen, (["ls", "-la"]))
+ # TODO: doesn't work for proc = execute(subprocess.Popen...() -> any ideas?
if options.dryrun:
logging.debug('dry-run only: %s(%s)' % (get_function_name(f), ', '.join(map(repr, args))))
else:
sys.exit("Error: please run this script with uid 0 (root).")
-def install_syslinux(device, dry_run=False):
- # TODO
- """Install syslinux on specified device."""
- logging.critical("debug: syslinux %s [TODO]" % device)
+def mkfs_fat16(device):
+ """Format specified device with VFAT/FAT16 filesystem.
+
+ @device: partition that should be formated"""
+
+ # syslinux -d boot/isolinux /dev/sdb1
+ logging.info("Formating partition with fat16 filesystem")
+ 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"
- # syslinux -d boot/isolinux /dev/usb-sdb1
+
+def install_syslinux(device):
+ """Install syslinux on specified device.
+
+ @device: partition where syslinux should be installed to"""
+
+ if options.dryrun:
+ logging.info("Would install syslinux as bootloader on %s", device)
+ return 0
+
+ # 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):
- """Generate grub configuration for use via menu,lst"""
+ """Generate grub configuration for use via menu.lst
+ @grml_flavour: name of grml flavour the configuration should be generated for"""
# TODO
- # * install main part of configuration just *once* and append
- # flavour specific configuration only
# * 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())
def generate_isolinux_splash(grml_flavour):
- """Generate bootsplash for isolinux/syslinux"""
+ """Generate bootsplash for isolinux/syslinux
- # TODO
- # * adjust last bootsplash line
+ @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("""\
-\ 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"""
- # TODO
- # * install main part of configuration just *once* and append
- # flavour specific configuration only
- # * unify isolinux and syslinux setup ("INCLUDE /boot/...")
- # as far as possible
+def generate_main_syslinux_config(grml_flavour, bootoptions):
+ """Generate main configuration for use in syslinux.cfg
- grml_name = grml_flavour
+ @grml_flavour: name of grml flavour the configuration should be generated for
+ @bootoptions: bootoptions that should be used as a default"""
+
+ 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
+
+## 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
+""" % locals())
-# TODO: extend configuration :)
+
+def generate_flavour_specific_syslinux_config(grml_flavour, bootoptions):
+ """Generate flavour specific 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
+
+ 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
+
+# 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
+
+# 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
+
+# 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
+
+# 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
+
+# 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
""" % locals())
-def install_grub(device, dry_run=False):
- """Install grub on specified device."""
- logging.critical("TODO: grub-install %s" % device)
+def install_grub(device):
+ """Install grub on specified device.
+ @device: partition where grub should be installed to"""
-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*$', partition).group(1)
+ if options.dryrun:
+ logging.info("Would execute grub-install %s now.", device)
else:
- device = partition
+ logging.critical("TODO: sorry - grub-install %s not implemented yet" % device)
+
+
+def install_bootloader(device):
+ """Install bootloader on specified device.
+
+ @device: partition where bootloader should be installed to"""
+
+ # Install bootloader on the device (/dev/sda),
+ # not on the partition itself (/dev/sda1)?
+ #if partition[-1:].isdigit():
+ # device = re.match(r'(.*?)\d*$', partition).group(1)
+ #else:
+ # device = partition
if options.grub:
- install_grub(device, dry_run)
+ install_grub(device)
else:
- install_syslinux(device, dry_run)
+ install_syslinux(device)
def is_writeable(device):
- """Check if the device is writeable for the current user"""
+ """Check if the device is writeable for the current user
+
+ @device: partition where bootloader should be installed to"""
if not device:
return False
return os.access(device, os.W_OK) and os.access(device, os.R_OK)
-def install_mbr(device, dry_run=False):
+
+def install_mbr(device):
"""Install a default master boot record on given device
@device: device where MBR should be installed to"""
if not is_writeable(device):
raise IOError, "device not writeable for user"
- lilo = './lilo/lilo.static' # FIXME
+ if options.lilo:
+ lilo = options.lilo
+ else:
+ lilo = '/usr/share/grml2usb/lilo/lilo.static'
if not is_exe(lilo):
- raise Exception, "lilo executable not available."
+ raise Exception, "lilo executable can not be execute"
+
+ if options.dryrun:
+ logging.info("Would install MBR running lilo and using syslinux.")
+ return 0
# 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()
# activate partition:
logging.debug("%s -S /dev/null -A %s 1" % (lilo, device))
- if not dry_run:
+ if not options.dryrun:
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:
+ if not os.path.isfile("/usr/lib/syslinux/mbr.bin"):
+ raise Exception, "/usr/lib/syslinux/mbr.bin can not be read"
+
logging.debug("cat /usr/lib/syslinux/mbr.bin > %s" % device)
- if not dry_run:
+ if not options.dryrun:
try:
- # TODO use Popen instead?
+ # 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)
logging.critical("Execution failed:", error)
-def mount(source, target, options, dry_run=False):
+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):
"""Mount specified source on given target
@source: name of device/ISO that should be mounted
@target: directory where the ISO should be mounted to
@options: mount specific options"""
- if not dry_run:
- logging.critial("TODO: mount %s %s %s" % (options, source, target))
+ # notice: options.dryrun does not work here, as we have to
+ # locate files and identify the grml 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("TODO: mount %s %s %s" % (options, source, target))
+ logging.debug("register_mountpoint(%s)" % target)
+ register_mountpoint(target)
+
+def unmount(target, options):
+ """Unmount specified target
-def unmount(directory, dry_run=False):
- """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
- if not dry_run:
- logging.info("TODO: umount %s" % directory)
+ if not target_unmount:
+ logging.debug("%s not mounted anymore" % target)
else:
- logging.debug("TODO: umount %s" % directory)
+ 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:
- logging.critical("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:
- logging.critical("Sorry, /lib/udev/vol_id not available.")
- return 1
+ raise Exception, "Sorry, /lib/udev/vol_id not available."
def mkdir(directory):
pass
-def copy_grml_files(grml_flavour, iso_mount, target, dry_run=False):
+def copy_grml_files(grml_flavour, iso_mount, target):
"""Copy files from ISO on given target"""
# TODO
# * 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 spaghetti ;)
+ # * abstract copy logic to make the code shorter and get rid of spaghettis ;)
- logging.info("Copying files. This might take a while....")
+ if options.dryrun:
+ logging.info("Would copy files to %s", iso_mount)
+ elif 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
- logging.debug("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 = subprocess.Popen(["install", "--mode=664", squashfs, squashfs_target + grml_flavour + ".squashfs"])
+ proc.wait()
- filesystem_module = search_file('filesystem.module', iso_mount)
- logging.debug("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 = 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)
- logging.debug("cp %s %s" % (kernel, 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 = subprocess.Popen(["install", "--mode=664", kernel, release_target + '/linux26'])
+ proc.wait()
- initrd = search_file('initrd.gz', iso_mount)
- logging.debug("cp %s %s" % (initrd, 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 = 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)
- logging.debug("cp %s %s" % logo, 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 = 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)
- logging.debug("cp %s %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 = subprocess.Popen(["install", "--mode=664", bootsplash, syslinux_target + ffile])
+ proc.wait()
grub_target = target + '/boot/grub/'
execute(mkdir, grub_target)
- logging.debug("cp grub/splash.xpm.gz %s" % grub_target + 'splash.xpm.gz')
- execute(subprocess.Popen, ["install", "--mode=664", 'grub/splash.xpm.gz', grub_target + 'splash.xpm.gz'])
-
- logging.debug("cp grub/stage2_eltorito to %s" % grub_target + 'stage2_eltorito')
- execute(subprocess.Popen, ["install", "--mode=664", 'grub/stage2_eltorito', grub_target + 'stage2_eltorito'])
-
- logging.debug("Generating grub configuration %s" % grub_target + 'menu.lst')
- if not dry_run:
+ 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()
+
+ 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()
+
+ if not options.dryrun:
+ 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)
-
- logging.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( )
-
- logging.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
+ # 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( )
+ # 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"""
+ """Get rid of all grml files on specified device
+
+ @device: partition where grml2usb files should be removed from"""
# TODO
- logging.critical("TODO: %s" % device)
+ logging.critical("TODO: uninstalling files from %s not yet implement, sorry." % device)
def identify_grml_flavour(mountpath):
return grml_flavour
+
def handle_iso(iso, device):
- """TODO
- """
+ """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"""
- logging.info("iso = %s" % iso)
+ logging.info("Using ISO %s" % iso)
if os.path.isdir(iso):
- logging.critical("TODO: /live/image handling not yet implemented") # TODO
+ logging.critical("TODO: /live/image handling not yet implemented - sorry") # TODO
+ sys.exit(1)
else:
- iso_mountpoint = '/mnt/test' # FIXME
- # iso_mount = tempfile.mkdtemp()
- mount(iso, iso_mountpoint, "-o loop -t iso9660", dry_run=options.dryrun)
- # device_mountpoint = '/mnt/usb-sdb1'
- # device_mountpoint = tempfile.mkdtemp()
- device_mountpoint = '/dev/shm/grml2usb' # FIXME
- mount(device, device_mountpoint, "", dry_run=options.dryrun)
+ iso_mountpoint = tempfile.mkdtemp()
+ register_tmpfile(iso_mountpoint)
+ remove_iso_mountpoint = True
+
+ if not os.path.isfile(iso):
+ logging.critical("Fatal: specified ISO %s could not be read" % iso)
+ cleanup()
+ sys.exit(1)
+
+ 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)
except TypeError:
- logging.critical("Fatal: could not identify grml flavour, sorry.")
+ 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, "")
- # grml_flavour_short = grml_flavour.replace('-','')
- # logging.debug("grml_flavour_short = %s" % grml_flavour_short)
+ os.rmdir(iso_mountpoint)
+ unregister_tmpfile(iso_mountpoint)
- copy_grml_files(grml_flavour, iso_mountpoint, device_mountpoint, dry_run=options.dryrun)
+ if remove_device_mountpoint:
+ unmount(device_mountpoint, "")
- unmount(device_mountpoint, dry_run=options.dryrun) # TODO
- unmount(iso_mountpoint, dry_run=options.dryrun) # TODO
+ 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)
- #if os.path.isdir(target):
- # os.rmdir(target)
- #if os.path.isdir(iso_mount):
- # os.rmdir(iso_mount)
def main():
"""Main function [make pylint happy :)]"""
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)
else:
check_uid_root()
+ # specified arguments
device = args[len(args) - 1]
isos = args[0:len(args) - 1]
- if not which("syslinux"):
- logging.critical('Sorry, syslinux not available. Exiting.')
- logging.critical('Please install syslinux or consider using the --grub option.')
- sys.exit(1)
+ # 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."
+ f = raw_input("Do you really want to continue? y/N ")
+ if f == "y" or f == "Y":
+ pass
+ else:
+ sys.exit(1)
- # TODO
- # * check for valid blockdevice, vfat and mount functions
- # if device is not None:
- # check_for_vat(device)
- # mount_target(partition)
+ # make sure we have syslinux available
+ if options.mbr:
+ 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)
- # TODO
- # * it doesn't need to be a ISO, could be /live/image as well
+ # make sure we have mkfs.vfat available
+ if options.fat16 and not options.force:
+ 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)
+ else:
+ sys.exit(1)
+
+ # 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 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)
+
+ # format partition:
+ if options.fat16:
+ mkfs_fat16(device)
+
+ # 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 if your device does not boot.")
+ 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)
except IOError, error:
- logging.critical("Execution failed:", error)
+ logging.critical("Execution failed: %s", error)
sys.exit(1)
except Exception, error:
- logging.critical("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:
logging.info("Not installing bootloader and its files as requested via option copyonly.")
else:
- install_bootloader(device, dry_run=options.dryrun)
+ install_bootloader(device)
+ # 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