import tempfile
import time
import uuid
+import shutil
# The line following this line is patched by debian/rules and tarball.sh.
PROG_VERSION = '***UNRELEASED***'
GRML_DEFAULT = None
UUID = None
SYSLINUX_LIBS = "/usr/lib/syslinux/"
+GPT_HEADER = "\x55\xaa\x45\x46\x49\x20\x50\x41\x52\x54" # original GPT header
RE_PARTITION = re.compile(r'([a-z/]*?)(\d+)$')
RE_P_PARTITION = re.compile(r'(.*?\d+)p(\d+)$')
RE_LOOP_DEVICE = re.compile(r'/dev/loop\d+$')
+
def syslinux_warning(option, opt, value, opt_parser):
"""A helper function for printing a warning about deprecated option
"""
@Exception: message"""
pass
+
class VerifyException(Exception):
"""Throw critical exception if there is an fatal error when verifying something.
def cleanup():
"""Cleanup function to make sure there aren't any mounted devices left behind.
"""
+ def del_failed(fn, filepath, exc):
+ msg = "Deletion of %s failed in temporary folder %s"
+ logging.warn(msg % (filepath, path))
logging.info("Cleaning up before exiting...")
proc = subprocess.Popen(["sync"])
proc.wait()
- try:
- for device in MOUNTED:
+ for device in MOUNTED.copy():
+ try:
unmount(device, "")
- for tmpfile in TMPFILES:
- os.unlink(tmpfile)
- # ignore: RuntimeError: Set changed size during iteration
- except RuntimeError:
- logging.debug('caught expection RuntimeError, ignoring')
+ logging.debug('Unmounted %s' % device)
+ except StandardError:
+ logging.debug('RuntimeError while umount %s, ignoring' % device)
+
+ for tmppath in TMPFILES.copy():
+ try:
+ if os.path.isdir(tmppath) and not os.path.islink(tmppath):
+ # symbolic links to directories are ignored
+ # without the check it will throw an OSError
+ shutil.rmtree(tmppath, onerror=del_failed)
+ logging.debug('temporary directory %s deleted' % tmppath)
+ unregister_tmpfile(tmppath)
+ elif os.path.isfile:
+ os.unlink(tmppath)
+ logging.debug('temporary file %s deleted' % tmppath)
+ unregister_tmpfile(tmppath)
+ except StandardError:
+ msg = 'RuntimeError while removing temporary %s, ignoring'
+ logging.debug(msg % tmppath)
def register_tmpfile(path):
@cwd: current working directory
"""
- return os.path.exists(os.path.join(cwd, filename))
+ return os.path.exists(os.path.join(cwd, filename))
for path in paths:
current_dir = path
def check_uid_root():
"""Check for root permissions"""
if not os.geteuid() == 0:
- sys.exit("Error: please run this script with uid 0 (root).")
+ raise CriticalException("please run this script with uid 0 (root).")
def check_boot_flag(device):
boot_dev, x = get_device_from_partition(device)
with open(boot_dev, 'r') as image:
- data = image.read(512)
+ data = image.read(520)
bootcode = data[440:]
- if bootcode[6] == '\x80':
+ gpt_data = bootcode[70:80]
+
+ if gpt_data == GPT_HEADER:
+ logging.info("GPT detected, skipping bootflag check")
+ elif bootcode[6] == '\x80':
logging.debug("bootflag is enabled")
else:
logging.debug("bootflag is NOT enabled")
logging.info("Installing default MBR")
if not os.path.isfile(mbrtemplate):
- logging.critical("Error: %s can not be read.", mbrtemplate)
- raise CriticalException("Error installing MBR (either try --syslinux-mbr or install missing file \"%s\"?)" % mbrtemplate)
+ logging.error('Error installing MBR (either try --syslinux-mbr or '
+ 'install missing file "%s"?)', mbrtemplate)
+ raise CriticalException("%s can not be read." % mbrtemplate)
if partition is not None and ((partition < 0) or (partition > 3)):
- logging.warn("Cannot activate partition %d" % partition)
+ logging.warn("Cannot activate partition %d", partition)
partition = None
if ismirbsdmbr:
squashfs = search_file(grml_flavour + '.squashfs', iso_mount)
if squashfs is None:
- logging.critical("Fatal: squashfs file not found"
- ", please check that your iso is not corrupt")
- raise CriticalException("error locating squashfs file")
+ logging.error("error locating squashfs file")
+ raise CriticalException("squashfs file not found, please check that your iso is not corrupt")
else:
squashfs_target = target + '/live/' + grml_flavour + '/'
execute(mkdir, squashfs_target)
if filesystem_module:
break
if filesystem_module is None:
- logging.critical("Fatal: filesystem.module not found")
- raise CriticalException("error locating filesystem.module file")
+ logging.error("error locating filesystem.module file")
+ raise CriticalException("filesystem.module not found")
else:
exec_rsync(filesystem_module, squashfs_target + 'filesystem.module')
kernel = search_file('linux26', iso_mount)
if kernel is None:
- logging.critical("Fatal: kernel not found")
- raise CriticalException("error locating kernel file")
+ logging.error("error locating kernel file")
+ raise CriticalException("Kernel not found")
source = os.path.dirname(kernel) + '/'
dest = target + '/' + os.path.dirname(kernel).replace(iso_mount, '') + '/'
logging.debug("Found source file" + sourcefile)
os.path.isfile(ops) and f.write("source " + sourcefile + "\n")
- f.write("source /boot/grub/adddons.cfg\n")
+ f.write("source /boot/grub/addons.cfg\n")
f.write("source /boot/grub/footer.cfg\n")
f.close()
(source_dir, defaults_file) = get_defaults_file(iso_mount, grml_flavour, "grml.cfg")
if not source_dir:
- logging.critical("Fatal: file default.cfg could not be found.")
- logging.critical("Note: this grml2usb version requires an ISO generated by grml-live >=0.9.24 ...")
- logging.critical(" ... either use grml releases >=2009.10 or switch to an older grml2usb version.")
- raise
+ raise CriticalException(
+ "file default.cfg could not be found.\n"
+ "Note: this grml2usb version requires an ISO generated by grml-live >=0.9.24 ...\n"
+ " ... either use grml releases >=2009.10 or switch to an older grml2usb version.")
if not os.path.exists(iso_mount + '/boot/grub/footer.cfg'):
logging.warning("Warning: Grml releases older than 2011.12 support only one flavour in grub.")
except TypeError, e:
raise
except Exception, e:
- logging.critical("Unexpected error: %s", e)
raise
finally:
if tmpfile:
# install main configuration only *once*, no matter how many ISOs we have:
syslinux_config_file = open(syslinux_cfg, 'w')
- syslinux_config_file.write("TIMEOUT 300\n")
+ syslinux_config_file.write("timeout 300\n")
syslinux_config_file.write("include vesamenu.cfg\n")
syslinux_config_file.close()
iso_mountpoint = image
remove_image_mountpoint = False
if os.path.isdir(image):
- logging.info("Using %s as install base", image)
+ if options.force or os.path.exists(os.path.join(image, 'live')):
+ logging.info("Using %s as install base", image)
+ else:
+ q = raw_input("%s does not look like a grml system. "
+ "Do you really want to use this image? y/N " % image)
+ if q.lower() == 'y':
+ logging.info("Using %s as install base", image)
+ else:
+ logging.info("Skipping install base %s", image)
else:
logging.info("Using ISO %s", image)
iso_mountpoint = tempfile.mkdtemp(prefix="grml2usb", dir=os.path.abspath(options.tmpdir))
try:
remove_mountpoint(iso_mountpoint)
except CriticalException, error:
- logging.critical("Fatal: %s", error)
cleanup()
+ raise
def install_grml(mountpoint, device):
check_boot_flag(device)
mount(device, device_mountpoint, ['-o', 'utf8,iocharset=iso8859-1'])
except VerifyException, error:
- logging.critical("Fatal: %s", error)
raise
except CriticalException, error:
- try:
- mount(device, device_mountpoint, "")
- except CriticalException, error:
- logging.critical("Fatal: %s", error)
- raise
+ mount(device, device_mountpoint, "")
try:
grml_flavours = identify_grml_flavour(mountpoint)
for flavour in set(grml_flavours):
def remove_mountpoint(mountpoint):
- """remove a registred mountpoint
+ """remove a registered mountpoint
"""
try:
os.rmdir(mountpoint)
unregister_tmpfile(mountpoint)
except CriticalException, error:
- logging.critical("Fatal: %s", error)
cleanup()
+ raise
def handle_mbr(device):
return 0
mbr_device, partition_number = get_device_from_partition(device)
- if not partition_number:
+ if partition_number is None:
logging.warn("Could not detect partition number, not activating partition")
# if we get e.g. /dev/loop1 as device we don't want to put the MBR
mbrcode = GRML2USB_BASE + '/mbr/mbrldr'
if options.syslinuxmbr:
- mbrcode = '/usr/lib/syslinux/mbr.bin'
+ mbrcode = ""
+ mbr_locations = ('/usr/lib/syslinux/mbr.bin',
+ '/usr/share/syslinux/mbr.bin')
+ for mbrpath in mbr_locations:
+ if os.path.isfile(mbrpath):
+ mbrcode = mbrpath
+ break
+
+ if mbrcode is "":
+ str_locations = " or ".join(['"%s"' % l for l in mbr_locations])
+ logging.error('Cannot find syslinux MBR, install it at %s)',
+ str_locations)
+ raise CriticalException("syslinux MBR can not be found at %s."
+ % str_locations)
elif options.mbrmenu:
mbrcode = GRML2USB_BASE + '/mbr/mbrldr'
if options.verbose and options.quiet:
parser.error("please use either verbose (--verbose) or quiet (--quiet) option")
+ FORMAT = "%(message)s"
if options.verbose:
- FORMAT = "Debug: %(asctime)-15s %(message)s"
+ FORMAT = "%(asctime)-15s %(message)s"
logging.basicConfig(level=logging.DEBUG, format=FORMAT)
elif options.quiet:
- FORMAT = "Critical: %(message)s"
logging.basicConfig(level=logging.CRITICAL, format=FORMAT)
else:
- FORMAT = "%(message)s"
logging.basicConfig(level=logging.INFO, format=FORMAT)
@opts option dict from OptionParser
"""
if opts.grubmbr and not opts.grub:
- logging.critical("Error: --grub-mbr requires --grub option.")
- sys.exit(1)
+ raise CriticalException("--grub-mbr requires --grub option.")
def check_programs():
def main():
"""Main function [make pylint happy :)]"""
- if options.version:
- print os.path.basename(sys.argv[0]) + " " + PROG_VERSION
- sys.exit(0)
+ try:
+ if options.version:
+ print os.path.basename(sys.argv[0]) + " " + PROG_VERSION
+ sys.exit(0)
- if len(args) < 2:
- parser.error("invalid usage")
+ if len(args) < 2:
+ parser.error("invalid usage")
- # log handling
- handle_logging()
+ # log handling
+ handle_logging()
- # make sure we have the appropriate permissions
- check_uid_root()
+ # make sure we have the appropriate permissions
+ check_uid_root()
- check_options(options)
+ check_options(options)
- load_loop()
+ load_loop()
- logging.info("Executing grml2usb version %s", PROG_VERSION)
+ logging.info("Executing grml2usb version %s", PROG_VERSION)
- if options.dryrun:
- logging.info("Running in simulation mode as requested via option dry-run.")
+ if options.dryrun:
+ logging.info("Running in simulation mode as requested via option dry-run.")
- check_programs()
+ check_programs()
- # specified arguments
- device = os.path.realpath(args[len(args) - 1])
- isos = args[0:len(args) - 1]
+ # specified arguments
+ device = os.path.realpath(args[len(args) - 1])
+ isos = args[0:len(args) - 1]
- if not os.path.isdir(device):
- if device[-1:].isdigit():
- if int(device[-1:]) > 4 or device[-2:].isdigit():
- logging.critical("Fatal: installation on partition number >4 not supported. (BIOS won't support it.)")
- sys.exit(1)
+ if not os.path.isdir(device):
+ if device[-1:].isdigit():
+ if int(device[-1:]) > 4 or device[-2:].isdigit():
+ logging.critical("Fatal: installation on partition number >4 not supported. (BIOS won't support it.)")
+ sys.exit(1)
- # provide upgrade path
- handle_compat_warning(device)
+ # provide upgrade path
+ handle_compat_warning(device)
- # check for vfat partition
- handle_vfat(device)
+ # check for vfat partition
+ handle_vfat(device)
- # main operation (like installing files)
- for iso in isos:
- install(iso, device)
+ # main operation (like installing files)
+ for iso in isos:
+ install(iso, device)
- # install mbr
- is_superfloppy = not device[-1:].isdigit()
- if is_superfloppy:
- logging.info("Detected superfloppy format - not installing MBR")
+ # install mbr
+ is_superfloppy = not device[-1:].isdigit()
+ if is_superfloppy:
+ logging.info("Detected superfloppy format - not installing MBR")
- if not options.skipmbr and not os.path.isdir(device) and not is_superfloppy:
- handle_mbr(device)
+ if not options.skipmbr and not os.path.isdir(device) and not is_superfloppy:
+ handle_mbr(device)
- handle_bootloader(device)
+ handle_bootloader(device)
- logging.info("Note: grml flavour %s was installed as the default booting system.", GRML_DEFAULT)
+ logging.info("Note: grml flavour %s was installed as the default booting system.", GRML_DEFAULT)
- for flavour in GRML_FLAVOURS:
- logging.info("Note: you can boot flavour %s using '%s' on the commandline.", flavour, flavour)
+ for flavour in GRML_FLAVOURS:
+ logging.info("Note: you can boot flavour %s using '%s' on the commandline.", flavour, flavour)
- # finally be politely :)
- logging.info("Finished execution of grml2usb (%s). Have fun with your grml system.", PROG_VERSION)
+ # finally be polite :)
+ logging.info("Finished execution of grml2usb (%s). Have fun with your grml system.", PROG_VERSION)
+
+ except Exception, error:
+ logging.critical("Fatal: %s", str(error))
+ sys.exit(1)
if __name__ == "__main__":
projects / grml2usb.git / blobdiff