def package(self, destdir = "."):
        """Prepares the created image for final delivery.

        In its simplest form, this method merely copies the install root to the
        supplied destination directory; other subclasses may choose to package
        the image by e.g. creating a bootable ISO containing the image and
        bootloader configuration.

        destdir -- the directory into which the final image should be moved;
                   this defaults to the current directory.

        """
        self._stage_final_image()

        if not os.path.exists(destdir):
            fs.makedirs(destdir)
        if self._img_compression_method:
            if not self._img_name:
                raise CreatorError("Image name not set.")
            rc = None
            img_location = os.path.join(self._outdir,self._img_name)
            if self._img_compression_method == "bz2":
                bzip2 = fs.find_binary_path('bzip2')
                msger.info("Compressing %s with bzip2. Please wait..." \
                           % img_location)
                rc = runner.show([bzip2, "-f", img_location])
                if rc:
                    raise CreatorError("Failed to compress image %s with %s." \
                                % (img_location, self._img_compression_method))

                for bootimg in glob.glob(os.path.dirname(img_location) + \
                                         "/*-boot.bin"):
                    msger.info("Compressing %s with bzip2. Please wait..." \
                               % bootimg)
                    rc = runner.show([bzip2, "-f", bootimg])
                    if rc:
                        raise CreatorError("Failed to compress image %s with "
                                           "%s." \
                                           % (bootimg,
                                              self._img_compression_method))

        if self._recording_pkgs:
            self._save_recording_pkgs(destdir)

        # For image formats with two or multiple image files, it will be
        # better to put them under a directory
        if self.image_format in ("raw", "vmdk", "vdi", "nand", "mrstnand"):
            destdir = os.path.join(destdir, "%s-%s" \
                                            % (self.name, self.image_format))
            msger.debug("creating destination dir: %s" % destdir)
            fs.makedirs(destdir)

        # Ensure all data is flushed to _outdir
        runner.quiet('sync')

        for f in os.listdir(self._outdir):
            shutil.move(os.path.join(self._outdir, f),
                        os.path.join(destdir, f))
            self.outimage.append(os.path.join(destdir, f))
            self.do_genchecksum(os.path.join(destdir, f))

    def __write_initrd_conf(self, path):
        content = ""
        if not os.path.exists(os.path.dirname(path)):
            fs_related.makedirs(os.path.dirname(path))
        f = open(path, "w")

        content += 'LIVEOS="yes"\n'
        content += 'PROBE="no"\n'
        content += 'MODULES+="squashfs ext3 ext2 vfat msdos "\n'
        content += 'MODULES+="sr_mod sd_mod ide-cd cdrom "\n'

        for module in self.__modules:
            if module == "=usb":
                content += 'MODULES+="ehci_hcd uhci_hcd ohci_hcd "\n'
                content += 'MODULES+="usb_storage usbhid "\n'
            elif module == "=firewire":
                content += 'MODULES+="firewire-sbp2 firewire-ohci "\n'
                content += 'MODULES+="sbp2 ohci1394 ieee1394 "\n'
            elif module == "=mmc":
                content += 'MODULES+="mmc_block sdhci sdhci-pci "\n'
            elif module == "=pcmcia":
                content += 'MODULES+="pata_pcmcia  "\n'
            else:
                content += 'MODULES+="' + module + ' "\n'
        f.write(content)
        f.close()

def savefs_before_chroot(chrootdir, saveto = None):
    """ backup chrootdir to another directory before chrooting in """
    if configmgr.chroot['saveto']:
        savefs = True
        saveto = configmgr.chroot['saveto']
        wrnmsg = "Can't save chroot fs for dir %s exists" % saveto
        if saveto == chrootdir:
            savefs = False
            wrnmsg = "Dir %s is being used to chroot" % saveto
        elif os.path.exists(saveto):
            if msger.ask("Dir %s already exists, cleanup and continue?" %
                         saveto):
                shutil.rmtree(saveto, ignore_errors = True)
                savefs = True
            else:
                savefs = False

        if savefs:
            msger.info("Saving image to directory %s" % saveto)
            fs_related.makedirs(os.path.dirname(os.path.abspath(saveto)))
            runner.quiet("cp -af %s %s" % (chrootdir, saveto))
            devs = ['dev/fd',
                    'dev/stdin',
                    'dev/stdout',
                    'dev/stderr',
                    'etc/mtab']
            ignlst = [os.path.join(saveto, x) for x in devs]
            map(os.unlink, filter(os.path.exists, ignlst))
        else:
            msger.warning(wrnmsg)

    def _stage_final_image(self):
        try:
            fs_related.makedirs(self.__ensure_isodir() + "/LiveOS")

            minimal_size = self._resparse()

            if not self.skip_minimize:
                fs_related.create_image_minimizer(self.__isodir + \
                                                      "/LiveOS/osmin.img",
                                                  self._image,
                                                  minimal_size)

            if self.skip_compression:
                shutil.move(self._image, self.__isodir + "/LiveOS/ext3fs.img")
            else:
                fs_related.makedirs(os.path.join(
                                        os.path.dirname(self._image),
                                        "LiveOS"))
                shutil.move(self._image,
                            os.path.join(os.path.dirname(self._image),
                                         "LiveOS", "ext3fs.img"))
                fs_related.mksquashfs(os.path.dirname(self._image),
                           self.__isodir + "/LiveOS/squashfs.img")

            self.__create_iso(self.__isodir)

            if self.pack_to:
                isoimg = os.path.join(self._outdir, self.name + ".iso")
                packimg = os.path.join(self._outdir, self.pack_to)
                misc.packing(packimg, isoimg)
                os.unlink(isoimg)

        finally:
            shutil.rmtree(self.__isodir, ignore_errors = True)
            self.__isodir = None

    def _configure_syslinux_bootloader(self, isodir):
        """configure the boot loader"""
        fs_related.makedirs(isodir + "/isolinux")

        menu = self.__find_syslinux_menu()

        self.__copy_syslinux_files(isodir, menu,
                                   self.__find_syslinux_mboot())

        background = ""
        if self.__copy_syslinux_background(isodir + "/isolinux/splash.jpg"):
            background = "menu background splash.jpg"

        cfg = self.__get_basic_syslinux_config(menu = menu,
                                               background = background,
                                               name = self.name,
                                               timeout = self._timeout * 10,
                                               distroname = self.distro_name)

        cfg += self.__get_image_stanzas(isodir)
        cfg += self.__get_memtest_stanza(isodir)
        cfg += self.__get_local_stanza(isodir)
        cfg += self._get_isolinux_stanzas(isodir)

        cfgf = open(isodir + "/isolinux/isolinux.cfg", "w")
        cfgf.write(cfg)
        cfgf.close()

    def package(self, destdir="."):
        """Prepares the created image for final delivery.

        In its simplest form, this method merely copies the install root to the
        supplied destination directory; other subclasses may choose to package
        the image by e.g. creating a bootable ISO containing the image and
        bootloader configuration.

        destdir -- the directory into which the final image should be moved;
                   this defaults to the current directory.

        """
        self._stage_final_image()

        if not os.path.exists(destdir):
            fs.makedirs(destdir)

        if self._recording_pkgs:
            self._save_recording_pkgs(destdir)

        # For image formats with two or multiple image files, it will be
        # better to put them under a directory
        if self.image_format in ("raw", "vmdk", "vdi", "nand", "mrstnand"):
            destdir = os.path.join(destdir, "%s-%s" % (self.name, self.image_format))
            msger.debug("creating destination dir: %s" % destdir)
            fs.makedirs(destdir)

        # Ensure all data is flushed to _outdir
        runner.quiet("sync")

        misc.check_space_pre_cp(self._outdir, destdir)
        for f in os.listdir(self._outdir):
            shutil.move(os.path.join(self._outdir, f), os.path.join(destdir, f))
            self.outimage.append(os.path.join(destdir, f))
            self.do_genchecksum(os.path.join(destdir, f))

    def _configure_efi_bootloader(self, isodir):
        """Set up the configuration for an EFI bootloader"""
        fs_related.makedirs(isodir + "/EFI/boot")

        if not self.__copy_efi_files(isodir):
            shutil.rmtree(isodir + "/EFI")
            return

        for f in os.listdir(isodir + "/isolinux"):
            os.link("%s/isolinux/%s" %(isodir, f),
                    "%s/EFI/boot/%s" %(isodir, f))


        cfg = self.__get_basic_efi_config(name = self.name,
                                          timeout = self._timeout)
        cfg += self.__get_efi_image_stanzas(isodir, self.name)

        cfgf = open(isodir + "/EFI/boot/grub.conf", "w")
        cfgf.write(cfg)
        cfgf.close()

        # first gen mactel machines get the bootloader name wrong apparently
        if rpmmisc.getBaseArch() == "i386":
            os.link(isodir + "/EFI/boot/grub.efi",
                    isodir + "/EFI/boot/boot.efi")
            os.link(isodir + "/EFI/boot/grub.conf",
                    isodir + "/EFI/boot/boot.conf")

        # for most things, we want them named boot$efiarch
        efiarch = {"i386": "ia32", "x86_64": "x64"}
        efiname = efiarch[rpmmisc.getBaseArch()]
        os.rename(isodir + "/EFI/boot/grub.efi",
                  isodir + "/EFI/boot/boot%s.efi" %(efiname,))
        os.link(isodir + "/EFI/boot/grub.conf",
                isodir + "/EFI/boot/boot%s.conf" %(efiname,))

    def _do_chroot_tar(cls, target, cmd=[]):
        mountfp_xml = os.path.splitext(target)[0] + '.xml'
        if not os.path.exists(mountfp_xml):
            raise errors.CreatorError("No mount point file found for this tar "
                                      "image, please check %s" % mountfp_xml)

        import tarfile
        tar = tarfile.open(target, 'r')
        tmpdir = misc.mkdtemp()
        tar.extractall(path=tmpdir)
        tar.close()

        mntdir = misc.mkdtemp()

        loops = []
        for (mp, label, name, size, fstype) in load_mountpoints(mountfp_xml):
            if fstype in ("ext2", "ext3", "ext4"):
                myDiskMount = fs_related.ExtDiskMount
            elif fstype == "btrfs":
                myDiskMount = fs_related.BtrfsDiskMount
            elif fstype in ("vfat", "msdos"):
                myDiskMount = fs_related.VfatDiskMount
            else:
                raise errors.CreatorError("Cannot support fstype: %s" % fstype)

            name = os.path.join(tmpdir, name)
            size = size * 1024L * 1024L
            loop = myDiskMount(fs_related.SparseLoopbackDisk(name, size),
                               os.path.join(mntdir, mp.lstrip('/')),
                               fstype, size, label)

            try:
                msger.verbose("Mount %s to %s" % (mp, mntdir + mp))
                fs_related.makedirs(os.path.join(mntdir, mp.lstrip('/')))
                loop.mount()

            except:
                loop.cleanup()
                for lp in reversed(loops):
                    chroot.cleanup_after_chroot("img", lp, None, mntdir)

                shutil.rmtree(tmpdir, ignore_errors=True)
                raise

            loops.append(loop)

        try:
            if len(cmd) != 0:
                cmdline = "/usr/bin/env HOME=/root " + ' '.join(cmd)
            else:
                cmdline = "/usr/bin/env HOME=/root /bin/bash"
            chroot.chroot(mntdir, None, cmdline)
        except:
            raise errors.CreatorError("Failed to chroot to %s." % target)
        finally:
            for loop in reversed(loops):
                chroot.cleanup_after_chroot("img", loop, None, mntdir)

            shutil.rmtree(tmpdir, ignore_errors=True)

def setup_qemu_emulator(rootdir, arch):
    # mount binfmt_misc if it doesn't exist
    if not os.path.exists("/proc/sys/fs/binfmt_misc"):
        modprobecmd = find_binary_path("modprobe")
        runner.show([modprobecmd, "binfmt_misc"])
    if not os.path.exists("/proc/sys/fs/binfmt_misc/register"):
        mountcmd = find_binary_path("mount")
        runner.show([mountcmd, "-t", "binfmt_misc", "none", "/proc/sys/fs/binfmt_misc"])

    # qemu_emulator is a special case, we can't use find_binary_path
    # qemu emulator should be a statically-linked executable file
    if arch == "aarch64":
        node = "/proc/sys/fs/binfmt_misc/aarch64"
        if os.path.exists("/usr/bin/qemu-arm64") and is_statically_linked("/usr/bin/qemu-arm64"):
            arm_binary = "qemu-arm64"
        elif os.path.exists("/usr/bin/qemu-aarch64") and is_statically_linked("/usr/bin/qemu-aarch64"):
            arm_binary = "qemu-aarch64"
        elif os.path.exists("/usr/bin/qemu-arm64-static"):
            arm_binary = "qemu-arm64-static"
        elif os.path.exists("/usr/bin/qemu-aarch64-static"):
            arm_binary = "qemu-aarch64-static"
        else:
            raise CreatorError("Please install a statically-linked %s" % arm_binary)
    else:
        node = "/proc/sys/fs/binfmt_misc/arm"
        arm_binary = "qemu-arm"
        if not os.path.exists("/usr/bin/qemu-arm") or not is_statically_linked("/usr/bin/qemu-arm"):
            arm_binary = "qemu-arm-static"
        if not os.path.exists("/usr/bin/%s" % arm_binary):
            raise CreatorError("Please install a statically-linked %s" % arm_binary)

    qemu_emulator = "/usr/bin/%s" % arm_binary

    if not os.path.exists(rootdir + "/usr/bin"):
        makedirs(rootdir + "/usr/bin")
    shutil.copy(qemu_emulator, rootdir + qemu_emulator)

    # disable selinux, selinux will block qemu emulator to run
    if os.path.exists("/usr/sbin/setenforce"):
        msger.info('Try to disable selinux')
        runner.show(["/usr/sbin/setenforce", "0"])

    # unregister it if it has been registered and is a dynamically-linked executable
    if os.path.exists(node):
        qemu_unregister_string = "-1\n"
        with open(node, "w") as fd:
            fd.write(qemu_unregister_string)

    # register qemu emulator for interpreting other arch executable file
    if not os.path.exists(node):
        if arch == "aarch64":
            qemu_arm_string = ":aarch64:M::\\x7fELF\\x02\\x01\\x01\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x02\\x00\\xb7:\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\x00\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\xfe\\xff\\xff:%s:\n" % qemu_emulator
        else:
            qemu_arm_string = ":arm:M::\\x7fELF\\x01\\x01\\x01\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x02\\x00\\x28\\x00:\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\x00\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\xfa\\xff\\xff\\xff:%s:\n" % qemu_emulator
        with open("/proc/sys/fs/binfmt_misc/register", "w") as fd:
            fd.write(qemu_arm_string)

    return qemu_emulator

 def __create_repo_file(self, repo, repodir):
     fs.makedirs(self.path(repodir))
     f = open(self.path(repodir + "/" + repo.name + ".repo"), "w")
     self.__create_repo_section(repo, "base", f)
     if repo.debuginfo:
         self.__create_repo_section(repo, "debuginfo", f)
     if repo.source:
         self.__create_repo_section(repo, "source", f)
     f.close()

    def __save_repo_keys(self, repodata):
        if not repodata:
            return None

        gpgkeydir = "/etc/pki/rpm-gpg"
        fs.makedirs(self._instroot + gpgkeydir)
        for repo in repodata:
            if repo["repokey"]:
                repokey = gpgkeydir + "/RPM-GPG-KEY-%s" % repo["name"]
                shutil.copy(repo["repokey"], self._instroot + repokey)

def setup_qemu_emulator(rootdir, arch):
    # mount binfmt_misc if it doesn't exist
    if not os.path.exists("/proc/sys/fs/binfmt_misc"):
        modprobecmd = find_binary_path("modprobe")
        runner.show([modprobecmd, "binfmt_misc"])
    if not os.path.exists("/proc/sys/fs/binfmt_misc/register"):
        mountcmd = find_binary_path("mount")
        runner.show([mountcmd, "-t", "binfmt_misc", "none", "/proc/sys/fs/binfmt_misc"])

    # qemu_emulator is a special case, we can't use find_binary_path
    # qemu emulator should be a statically-linked executable file
    qemu_emulator = "/usr/bin/qemu-arm"
    if not os.path.exists(qemu_emulator) or not is_statically_linked(qemu_emulator):
        qemu_emulator = "/usr/bin/qemu-arm-static"
    if not os.path.exists(qemu_emulator):
        raise CreatorError("Please install a statically-linked qemu-arm")

    # qemu emulator version check
    armv7_list = [arch for arch in rpmmisc.archPolicies.keys() if arch.startswith('armv7')]
    if arch in armv7_list:  # need qemu (>=0.13.0)
        qemuout = runner.outs([qemu_emulator, "-h"])
        m = re.search("version\s*([.\d]+)", qemuout)
        if m:
            qemu_version = m.group(1)
            if qemu_version < "0.13":
                raise CreatorError("Requires %s version >=0.13 for %s" % (qemu_emulator, arch))
        else:
            msger.warning("Can't get version info of %s, please make sure it's higher than 0.13.0" % qemu_emulator)

    if not os.path.exists(rootdir + "/usr/bin"):
        makedirs(rootdir + "/usr/bin")
    shutil.copy(qemu_emulator, rootdir + "/usr/bin/qemu-arm-static")
    qemu_emulator = "/usr/bin/qemu-arm-static"

    # disable selinux, selinux will block qemu emulator to run
    if os.path.exists("/usr/sbin/setenforce"):
        msger.info('Try to disable selinux')
        runner.show(["/usr/sbin/setenforce", "0"])

    # unregister it if it has been registered and is a dynamically-linked executable
    node = "/proc/sys/fs/binfmt_misc/arm"
    if os.path.exists(node):
        qemu_unregister_string = "-1\n"
        fd = open("/proc/sys/fs/binfmt_misc/arm", "w")
        fd.write(qemu_unregister_string)
        fd.close()

    # register qemu emulator for interpreting other arch executable file
    if not os.path.exists(node):
        qemu_arm_string = ":arm:M::\\x7fELF\\x01\\x01\\x01\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x02\\x00\\x28\\x00:\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\x00\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\xfa\\xff\\xff\\xff:%s:\n" % qemu_emulator
        fd = open("/proc/sys/fs/binfmt_misc/register", "w")
        fd.write(qemu_arm_string)
        fd.close()

    return qemu_emulator

    def get_cachedir(self, cachedir=None):
        if self.cachedir:
            return self.cachedir

        self.__ensure_builddir()
        if cachedir:
            self.cachedir = cachedir
        else:
            self.cachedir = self.__builddir + "/mic-cache"
        fs.makedirs(self.cachedir)
        return self.cachedir

    def _mount_instroot(self, base_on=None):

        if base_on and os.path.isfile(base_on):
            self.__imgdir = os.path.dirname(base_on)
            imgname = os.path.basename(base_on)
            self._base_on(base_on)
            self._set_image_size(misc.get_file_size(self._image))

            # here, self._instloops must be []
            self._instloops.append({
                 "mountpoint": "/",
                 "label": self.name,
                 "name": imgname,
                 "size": self.__image_size or 4096L,
                 "fstype": self.__fstype or "ext3",
                 "extopts": None,
                 "loop": None
                 })

        self._check_imgdir()

        for loop in self._instloops:
            fstype = loop['fstype']
            mp = os.path.join(self._instroot, loop['mountpoint'].lstrip('/'))
            size = loop['size'] * 1024L * 1024L
            imgname = loop['name']

            if fstype in ("ext2", "ext3", "ext4"):
                MyDiskMount = fs.ExtDiskMount
            elif fstype == "btrfs":
                MyDiskMount = fs.BtrfsDiskMount
            elif fstype in ("vfat", "msdos"):
                MyDiskMount = fs.VfatDiskMount
            else:
                msger.error('Cannot support fstype: %s' % fstype)

            loop['loop'] = MyDiskMount(fs.SparseLoopbackDisk(
                                           os.path.join(self.__imgdir, imgname),
                                           size),
                                       mp,
                                       fstype,
                                       self._blocksize,
                                       loop['label'])

            if fstype in ("ext2", "ext3", "ext4"):
                loop['loop'].extopts = loop['extopts']

            try:
                msger.verbose('Mounting image "%s" on "%s"' % (imgname, mp))
                fs.makedirs(mp)
                loop['loop'].mount()
            except MountError, e:
                raise

    def apply(self, ksnet):
        fs.makedirs(self.path("/etc/sysconfig/network-scripts"))

        useipv6 = False
        nodns = False
        hostname = None
        gateway = None
        nameservers = None

        for network in ksnet.network:
            if not network.device:
                raise errors.KsError("No --device specified with "
                                            "network kickstart command")

            if (network.onboot and network.bootProto.lower() != "dhcp" and
                not (network.ip and network.netmask)):
                raise errors.KsError("No IP address and/or netmask "
                                            "specified with static "
                                            "configuration for '%s'" %
                                            network.device)

            self.write_ifcfg(network)
            self.write_wepkey(network)

            if network.ipv6:
                useipv6 = True
            if network.nodns:
                nodns = True

            if network.hostname:
                hostname = network.hostname
            if network.gateway:
                gateway = network.gateway

            if network.nameserver:
                nameservers = network.nameserver.split(",")

        self.write_sysconfig(useipv6, hostname, gateway)
        self.write_hosts(hostname)
        self.write_resolv(nodns, nameservers)

    def _stage_final_image(self):
        try:
            isodir = self._get_isodir()
            fs_related.makedirs(isodir + "/LiveOS")

            minimal_size = self._resparse()

            if not self.skip_minimize:
                fs_related.create_image_minimizer(isodir + "/LiveOS/osmin.img",
                                                  self._image,
                                                  minimal_size)

            if self.skip_compression:
                shutil.move(self._image,
                            isodir + "/LiveOS/ext3fs.img")
            else:
                fs_related.makedirs(os.path.join(
                                        os.path.dirname(self._image),
                                        "LiveOS"))
                shutil.move(self._image,
                            os.path.join(os.path.dirname(self._image),
                                         "LiveOS", "ext3fs.img"))
                fs_related.mksquashfs(os.path.dirname(self._image),
                           isodir + "/LiveOS/squashfs.img")

                self._create_usbimg(isodir)

                if self.pack_to:
                    self.image_files.update({'image_files': self.pack_to})
                    usbimg = os.path.join(self._outdir, self.name + ".usbimg")
                    packimg = os.path.join(self._outdir, self.pack_to)
                    packing(packimg, usbimg)
                    os.unlink(usbimg)
                else:
                    self.image_files.update({'image_files': self.name + ".usbimg"})

        finally:
            shutil.rmtree(isodir, ignore_errors = True)
            self._set_isodir(None)

    def mount(self, base_on = None, cachedir = None):
        """Setup the target filesystem in preparation for an install.

        This function sets up the filesystem which the ImageCreator will
        install into and configure. The ImageCreator class merely creates an
        install root directory, bind mounts some system directories (e.g. /dev)
        and writes out /etc/fstab. Other subclasses may also e.g. create a
        sparse file, format it and loopback mount it to the install root.

        base_on -- a previous install on which to base this install; defaults
                   to None, causing a new image to be created

        cachedir -- a directory in which to store the Yum cache; defaults to
                    None, causing a new cache to be created; by setting this
                    to another directory, the same cache can be reused across
                    multiple installs.

        """
        self.__ensure_builddir()

        fs.makedirs(self._instroot)
        fs.makedirs(self._outdir)

        self._mount_instroot(base_on)

        for d in ("/dev/pts",
                  "/etc",
                  "/boot",
                  "/var/log",
                  "/sys",
                  "/proc",
                  "/usr/bin"):
            fs.makedirs(self._instroot + d)

        if self.target_arch and self.target_arch.startswith("arm"):
            self.qemu_emulator = misc.setup_qemu_emulator(self._instroot,
                                                          self.target_arch)

        self.get_cachedir(cachedir)

        # bind mount system directories into _instroot
        for (f, dest) in [("/sys", None),
                          ("/proc", None),
                          ("/proc/sys/fs/binfmt_misc", None),
                          ("/dev/pts", None)]:
            self.__bindmounts.append(fs.BindChrootMount(f, self._instroot, dest))

        self._do_bindmounts()

        self.__create_minimal_dev()

        if os.path.exists(self._instroot + "/etc/mtab"):
            os.unlink(self._instroot + "/etc/mtab")
        os.symlink("../proc/mounts", self._instroot + "/etc/mtab")

        self.__write_fstab()

        # get size of available space in 'instroot' fs
        self._root_fs_avail = misc.get_filesystem_avail(self._instroot)

    def _stage_final_image(self):
        try:
            isodir = self._get_isodir()
            fs_related.makedirs(isodir + "/LiveOS")

            minimal_size = self._resparse()

            if not self.skip_minimize:
                fs_related.create_image_minimizer(isodir + "/LiveOS/osmin.img", self._image, minimal_size)

            if self.skip_compression:
                shutil.move(self._image, isodir + "/LiveOS/ext3fs.img")
            else:
                fs_related.makedirs(os.path.join(os.path.dirname(self._image), "LiveOS"))
                shutil.move(self._image, os.path.join(os.path.dirname(self._image), "LiveOS", "ext3fs.img"))
                fs_related.mksquashfs(os.path.dirname(self._image), isodir + "/LiveOS/squashfs.img")

                self._create_usbimg(isodir)

        finally:
            shutil.rmtree(isodir, ignore_errors=True)
            self._set_isodir(None)

def safecopy(src, dst, symlinks=False, ignore_ptns=()):
    if os.path.isdir(src):
        if os.path.isdir(dst):
            dst = os.path.join(dst, os.path.basename(src))
        if os.path.exists(dst):
            shutil.rmtree(dst, ignore_errors=True)

        src = src.rstrip('/')
        # check common prefix to ignore copying itself
        if dst.startswith(src + '/'):
            ignore_ptns = list(ignore_ptns) + [ os.path.basename(src) ]

        ignores = shutil.ignore_patterns(*ignore_ptns)
        try:
            shutil.copytree(src, dst, symlinks, ignores)
        except (OSError, IOError):
            shutil.rmtree(dst, ignore_errors=True)
            raise
    else:
        if not os.path.isdir(dst):
            makedirs(os.path.dirname(dst))

        shutil.copy2(src, dst)

    with open(_path(binpth), 'w') as wf:
        wf.write(mic_cont)

def safecopy(src, dst, symlinks=False, ignore_ptns=[]):
    if os.path.isdir(src):
        if os.path.isdir(dst):
            dst = os.path.join(dst, os.path.basename(src))
        if os.path.exists(dst):
            shutil.rmtree(dst, ignore_errors=True)

        src = src.rstrip('/')
        # check common prefix to ignore copying itself
        if dst.startswith(src + '/'):
            ignore_ptns += os.path.basename(src)

        try:
            ignores = shutil.ignore_patterns(*ignore_ptns)
            shutil.copytree(src, dst, symlinks, ignores)
        except OSError, IOError:
            shutil.rmtree(dst, ignore_errors=True)
            raise

    else:
        try:
            if not os.path.isdir(dst):
                makedirs(os.path.dirname(dst))

            shutil.copy2(src, dst)
        except:
            raise