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#!/usr/bin/env python
#
# live_part.py
#
# (c) Copyright 2009 - 2010 Michael Towers (larch42 at googlemail dot com)
#
# This file is part of the larch project.
#
# larch is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# larch is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with larch; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
#----------------------------------------------------------------------------
# 2010.07.12
"""This is a command line script to prepare a boot 'iso' for a USB larch
device, to make this bootable via CD on systems which cannot boot from USB
devices.
Parameters are passed as options and arguments.
"""
import os
from config import *
from backend import *
from media_common import *
def build_bootiso(options, devicename):
"""Create a boot iso for the specified medium.
'devicename' is the name (e.g. 'sdb1', without '/dev/') of the
source partition.
"""
# Check device
device = '/dev/' + devicename
if not os.path.exists(device):
errout(_("Invalid device: %s") % device)
options.source = device
medium = Medium(options)
ipath = medium.chrootpath
build = medium.build
# Need to get the label
label = medium.get_device_label(device)
# Write bootloader configuration file
bootconfig(build, options.syslinux, label, device, options.detection)
# Select bootloader
if options.syslinux:
# Get fresh isolinux.bin
runcmd('cp %s/boot/isolinux/isolinux.bin0 %s/boot/isolinux/isolinux.bin'
% (build, build))
parms = '-b boot/isolinux/isolinux.bin -c boot/isolinux/isolinux.boot'
# Select bootloader
else:
parms = '-b boot/grub/stage2_eltorito'
# Need to adjust paths to cater for chroot!
source0 = medium.chroot_medium_dir()
isopath0 = medium.iso_path()
# Actually the volume label can be 32 bytes, but 16 is compatible
# with ext2 (though a little longer than vfat)
label = check_label(options.label, 16)
# Build iso
if not chroot(ipath, ('mkisofs -R -l %s -no-emul-boot -boot-load-size 4'
' -boot-info-table -input-charset=UTF-8'
' -V "%s"'
' -o "%s"'
' "%s"') % (parms, label, isopath0, BUILD0),
filter=mkisofs_filter_gen()):
errout(_("iso build failed"))
medium.unmount()
runcmd('rm -rf %s' % build)
comment(" *** %s ***" % (_("%s was successfully created")
% (options.isofile)))
if __name__ == '__main__':
start_translator()
from optparse import OptionParser, OptionGroup
parser = OptionParser(usage=_("usage: %prog [options] partition"
" (e.g. sdb1)"))
parser.add_option("-o", "--isofile", action="store", type="string",
default=BOOTISO, dest="isofile",
help=_("Specify the output file (default '%s'). It will be"
" generated to the current directory.") % BOOTISO)
parser.add_option("-D", "--setdir", action="store", type="string",
dest='setdir', default='',
help=_("Set current directory,"
" so that the 'iso' can be placed there"))
parser.add_option("-d", "--detect", action="store", type="string",
default="label", dest="detection",
help=(_("Method for boot partition detection: %s (default: label)")
% detection_methods))
parser.add_option("-b", "--syslinux", action="store_true", dest="syslinux",
default=False, help=_("Use the syslinux bootloader"
" (the default is GRUB)"))
parser.add_option("-i", "--installation-dir", action="store", type="string",
default="", dest="idir",
help=_("Path to larchified directory (default %s)") % INSTALLATION)
parser.add_option("-s", "--slave", action="store_true", dest="slave",
default=False, help=_("Run as a slave from a controlling program"
" (e.g. from a gui)"))
parser.add_option("-q", "--quiet", action="store_true", dest="quiet",
default=False, help=_("Suppress output messages, except errors"
" (no effect if -s specified)"))
parser.add_option("-f", "--force", action="store_true", dest="force",
default=False, help=_("Don't ask for confirmation"))
parser.add_option("-l", "--label", action="store", type="string",
default=ISOLABEL, dest="label",
help=_("Volume label for boot iso (default %s)")
% ISOLABEL)
parser.add_option("-C", "--chroot", action="store_true",
dest="chroot", default=False,
help=_("Use chroot for build"))
(options, args) = parser.parse_args()
if not args:
print _("You must specify the source partition\n")
parser.print_help()
sys.exit(1)
if os.getuid() != 0:
print _("This application must be run as root")
sys.exit(1)
init('live_part', options)
# To avoid error messages
options.profile = None
options.nochroot = None
options.testmedium = False
build_bootiso(options, devicename=args[0])
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