2013-08-24 15:31:34 +00:00
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#!/usr/bin/python -tt
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#
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# Copyright (c) 2011 Intel, Inc.
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the Free
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# Software Foundation; version 2 of the License
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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# for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc., 59
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# Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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import os
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import shutil
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import tempfile
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2013-10-22 14:23:56 +00:00
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from mic import chroot, msger
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2013-08-24 15:31:34 +00:00
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from mic.utils import misc, fs_related, errors
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from mic.conf import configmgr
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import mic.imager.livecd as livecd
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from mic.plugin import pluginmgr
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from mic.pluginbase import ImagerPlugin
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class LiveCDPlugin(ImagerPlugin):
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name = 'livecd'
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@classmethod
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def do_create(self, subcmd, opts, *args):
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"""${cmd_name}: create livecd image
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Usage:
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${name} ${cmd_name} <ksfile> [OPTS]
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${cmd_option_list}
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"""
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if len(args) != 1:
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raise errors.Usage("Extra arguments given")
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creatoropts = configmgr.create
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ksconf = args[0]
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if creatoropts['runtime'] == 'bootstrap':
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configmgr._ksconf = ksconf
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rt_util.bootstrap_mic()
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if creatoropts['arch'] and creatoropts['arch'].startswith('arm'):
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msger.warning('livecd cannot support arm images, Quit')
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return
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recording_pkgs = []
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if len(creatoropts['record_pkgs']) > 0:
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recording_pkgs = creatoropts['record_pkgs']
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if creatoropts['release'] is not None:
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if 'name' not in recording_pkgs:
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recording_pkgs.append('name')
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if 'vcs' not in recording_pkgs:
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recording_pkgs.append('vcs')
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configmgr._ksconf = ksconf
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# Called After setting the configmgr._ksconf as the creatoropts['name'] is reset there.
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if creatoropts['release'] is not None:
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creatoropts['outdir'] = "%s/%s/images/%s/" % (creatoropts['outdir'], creatoropts['release'], creatoropts['name'])
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# try to find the pkgmgr
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pkgmgr = None
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backends = pluginmgr.get_plugins('backend')
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if 'auto' == creatoropts['pkgmgr']:
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for key in configmgr.prefer_backends:
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if key in backends:
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pkgmgr = backends[key]
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break
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else:
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for key in backends.keys():
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if key == creatoropts['pkgmgr']:
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pkgmgr = backends[key]
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break
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if not pkgmgr:
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raise errors.CreatorError("Can't find backend: %s, "
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"available choices: %s" %
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(creatoropts['pkgmgr'],
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','.join(backends.keys())))
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creator = livecd.LiveCDImageCreator(creatoropts, pkgmgr)
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if len(recording_pkgs) > 0:
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creator._recording_pkgs = recording_pkgs
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self.check_image_exists(creator.destdir,
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creator.pack_to,
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[creator.name + ".iso"],
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creatoropts['release'])
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try:
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creator.check_depend_tools()
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creator.mount(None, creatoropts["cachedir"])
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creator.install()
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creator.configure(creatoropts["repomd"])
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creator.copy_kernel()
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creator.unmount()
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creator.package(creatoropts["outdir"])
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if creatoropts['release'] is not None:
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creator.release_output(ksconf, creatoropts['outdir'], creatoropts['release'])
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creator.print_outimage_info()
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except errors.CreatorError:
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raise
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finally:
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creator.cleanup()
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msger.info("Finished.")
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return 0
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@classmethod
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def do_chroot(cls, target, cmd=[]):
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os_image = cls.do_unpack(target)
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os_image_dir = os.path.dirname(os_image)
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# unpack image to target dir
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imgsize = misc.get_file_size(os_image) * 1024L * 1024L
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imgtype = misc.get_image_type(os_image)
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if imgtype == "btrfsimg":
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fstype = "btrfs"
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myDiskMount = fs_related.BtrfsDiskMount
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elif imgtype in ("ext3fsimg", "ext4fsimg"):
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fstype = imgtype[:4]
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myDiskMount = fs_related.ExtDiskMount
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else:
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raise errors.CreatorError("Unsupported filesystem type: %s" % fstype)
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extmnt = misc.mkdtemp()
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extloop = myDiskMount(fs_related.SparseLoopbackDisk(os_image, imgsize),
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extmnt,
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fstype,
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4096,
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"%s label" % fstype)
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try:
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extloop.mount()
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except errors.MountError:
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extloop.cleanup()
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shutil.rmtree(extmnt, ignore_errors = True)
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shutil.rmtree(os_image_dir, ignore_errors = True)
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raise
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try:
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if len(cmd) != 0:
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cmdline = ' '.join(cmd)
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else:
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cmdline = "/bin/bash"
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envcmd = fs_related.find_binary_inchroot("env", extmnt)
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if envcmd:
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cmdline = "%s HOME=/root %s" % (envcmd, cmdline)
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chroot.chroot(extmnt, None, cmdline)
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except:
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raise errors.CreatorError("Failed to chroot to %s." %target)
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finally:
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chroot.cleanup_after_chroot("img", extloop, os_image_dir, extmnt)
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@classmethod
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def do_pack(cls, base_on):
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import subprocess
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def __mkinitrd(instance):
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kernelver = instance._get_kernel_versions().values()[0][0]
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args = [ "/usr/libexec/mkliveinitrd", "/boot/initrd-%s.img" % kernelver, "%s" % kernelver ]
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try:
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subprocess.call(args, preexec_fn = instance._chroot)
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except OSError, (err, msg):
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raise errors.CreatorError("Failed to execute /usr/libexec/mkliveinitrd: %s" % msg)
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def __run_post_cleanups(instance):
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kernelver = instance._get_kernel_versions().values()[0][0]
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args = ["rm", "-f", "/boot/initrd-%s.img" % kernelver]
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try:
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subprocess.call(args, preexec_fn = instance._chroot)
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except OSError, (err, msg):
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raise errors.CreatorError("Failed to run post cleanups: %s" % msg)
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convertoropts = configmgr.convert
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convertoropts['name'] = os.path.splitext(os.path.basename(base_on))[0]
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convertor = livecd.LiveCDImageCreator(convertoropts)
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imgtype = misc.get_image_type(base_on)
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if imgtype == "btrfsimg":
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fstype = "btrfs"
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elif imgtype in ("ext3fsimg", "ext4fsimg"):
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fstype = imgtype[:4]
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else:
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raise errors.CreatorError("Unsupported filesystem type: %s" % fstype)
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convertor._set_fstype(fstype)
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try:
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convertor.mount(base_on)
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__mkinitrd(convertor)
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convertor._create_bootconfig()
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__run_post_cleanups(convertor)
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convertor.launch_shell(convertoropts['shell'])
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convertor.unmount()
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convertor.package()
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convertor.print_outimage_info()
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finally:
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shutil.rmtree(os.path.dirname(base_on), ignore_errors = True)
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@classmethod
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def do_unpack(cls, srcimg):
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img = srcimg
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imgmnt = misc.mkdtemp()
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imgloop = fs_related.DiskMount(fs_related.LoopbackDisk(img, 0), imgmnt)
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try:
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imgloop.mount()
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except errors.MountError:
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imgloop.cleanup()
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raise
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# legacy LiveOS filesystem layout support, remove for F9 or F10
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if os.path.exists(imgmnt + "/squashfs.img"):
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squashimg = imgmnt + "/squashfs.img"
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else:
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squashimg = imgmnt + "/LiveOS/squashfs.img"
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tmpoutdir = misc.mkdtemp()
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# unsquashfs requires outdir mustn't exist
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shutil.rmtree(tmpoutdir, ignore_errors = True)
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misc.uncompress_squashfs(squashimg, tmpoutdir)
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try:
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# legacy LiveOS filesystem layout support, remove for F9 or F10
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if os.path.exists(tmpoutdir + "/os.img"):
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os_image = tmpoutdir + "/os.img"
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else:
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os_image = tmpoutdir + "/LiveOS/ext3fs.img"
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if not os.path.exists(os_image):
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raise errors.CreatorError("'%s' is not a valid live CD ISO : neither "
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"LiveOS/ext3fs.img nor os.img exist" %img)
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imgname = os.path.basename(srcimg)
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imgname = os.path.splitext(imgname)[0] + ".img"
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rtimage = os.path.join(tempfile.mkdtemp(dir = "/var/tmp", prefix = "tmp"), imgname)
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shutil.copyfile(os_image, rtimage)
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finally:
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imgloop.cleanup()
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shutil.rmtree(tmpoutdir, ignore_errors = True)
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shutil.rmtree(imgmnt, ignore_errors = True)
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return rtimage
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