# License: This file is licensed under the GPL v2 or any later version.
################################################################################
-# TODO:
+# TODO
# * strongly improve error handling :)
# * implement mount handling
# * write error messages to stderr
-# * log wrapper (log important messages to syslog, depending on loglevel)
+# * log wrapper (log important messages to syslog, depending on loglevel -> logging module)
# * trap handling (umount devices when interrupting?)
+# * provide progress bar?
+# * graphical version?
# * integrate https://www.mirbsd.org/cvs.cgi/src/sys/arch/i386/stand/mbr/mbr.S?rev=HEAD;content-type=text%2Fplain ?
# -> gcc -D_ASM_SOURCE -D__BOOT_VER=\"GRML\" -DBOOTMANAGER -c mbr.S; ld
# -nostdlib -Ttext 0 -N -Bstatic --oformat binary mbr.o -o mbrmgr
and root access."
parser = OptionParser(usage=usage)
+# TODO
+# * --copy-only?
+# * --bootloader-only?
parser.add_option("--bootoptions", dest="bootoptions", action="store", type="string",
help="use specified bootoptions as defaut")
parser.add_option("--dry-run", dest="dryrun", action="store_true",
# }}}
# wrapper functions {{{
-# TODO: implement argument handling
+# TODO
+# * implement argument handling
def execute(command):
"""Wrapper for executing a command. Either really executes
the command (default) or when using --dry-run commandline option
if options.dryrun:
print "would execute %s now" % command
else:
+ # TODO
+ # * actual execution ;)
+ # * wrap subprocess.Popen()?
print "executing %s" % command
-def which(program):
- def is_exe(fpath):
- return os.path.exists(fpath) and os.access(fpath, os.X_OK)
+def is_exe(fpath):
+ return os.path.exists(fpath) and os.access(fpath, os.X_OK)
+
+def which(program):
fpath, fname = os.path.split(program)
if fpath:
if is_exe(program):
return None
+
def search_file(filename, search_path='/bin' + pathsep + '/usr/bin'):
"""Given a search path, find file"""
file_found = 0
def install_syslinux(device):
+ # TODO
"""Install syslinux on specified device."""
- print("debug: syslinux %s") % device
+ print("debug: syslinux %s [TODO]") % device
+
+ # syslinux -d boot/isolinux /dev/usb-sdb1
def generate_grub_config(grml_flavour):
"""Generate grub configuration for use via menu,lst"""
- # TODO:
+ # TODO
# * what about system using grub2 without having grub available?
# * support grub2
def generate_isolinux_splash(grml_flavour):
"""Generate bootsplash for isolinux/syslinux"""
- # TODO:
+ # TODO
# * adjust last bootsplash line
grml_name = grml_flavour
def generate_syslinux_config(grml_flavour):
"""Generate configuration for use in syslinux.cfg"""
- # TODO:
+ # TODO
# * unify isolinux and syslinux setup ("INCLUDE /boot/...")
grml_name = grml_flavour
install_syslinux(device)
-def install_mbr(target):
- """Install a default master boot record on given target"""
- print("TODO")
+def isWriteable(device):
+ """Check if the device is writeable for the current user"""
+
+ if not device:
+ raise "WrongArguments", "no device for checking write permissions"
+
+ if not os.path.exists(device):
+ return False
+
+ return os.access(device, os.W_OK) and os.access(device, os.R_OK)
+
+def install_mbr(device):
+ """Install a default master boot record on given device
+
+ @device: device where MBR should be installed to"""
+
+ if not isWriteable(device):
+ raise IOError, "device not writeable for user"
+
+ lilo = './lilo/lilo.static' # FIXME
+
+ if not is_exe(lilo):
+ raise Exception, "lilo executable not available."
+
+ # to support -A for extended partitions:
+ print("debug: ./lilo/lilo.static -S /dev/null -M %s ext") % device
+ subprocess.Popen(["./lilo/lilo.static", "-S", "/dev/null", "-M", device, "ext"])
+
+ # activate partition:
+ print("debug: ./lilo/lilo.static -S /dev/null -A %s 1") % device
+ subprocess.Popen(["./lilo/lilo.static", "-S", "/dev/null", "-A", device, "1"])
+
+ # lilo's mbr is broken, use the one from syslinux instead:
+ print("debug: cat /usr/lib/syslinux/mbr.bin > %s") % device
+ try:
+ # FIXME: use Popen instead?
+ retcode = subprocess.call("cat /usr/lib/syslinux/mbr.bin > "+ device, shell=True)
+ if retcode < 0:
+ print >>sys.stderr, "Error copying MBR to device", -retcode
+ except OSError, e:
+ print >>sys.stderr, "Execution failed:", e
- # Command logic (all executed *without* mounted device):
- # lilo -S /dev/null -M /dev/usb-sdb ext
- # lilo -S /dev/null -A /dev/usb-sdb 1
- # cat ./mbr.bin > /dev/usb-sdb
- # syslinux -d boot/isolinux /dev/usb-sdb1
def loopback_mount(iso, target):
"""Loopback mount specified ISO on given target"""
if filesystem != "vfat":
return(1)
- # TODO: check for ID_FS_VERSION=FAT16 as well?
+ # TODO
+ # * check for ID_FS_VERSION=FAT16 as well?
except OSError:
print("Sorry, /lib/udev/vol_id not available.")
def copy_grml_files(grml_flavour, iso_mount, target):
"""Copy files from ISO on given target"""
- # TODO:
+ # 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?
- # * provide progress bar?
squashfs = search_file(grml_flavour + '.squashfs', iso_mount)
squashfs_target = target + '/live/'
def uninstall_files(device):
"""Get rid of all grml files on specified device"""
+ # TODO
print("TODO")
def main():
+
if options.version:
print("%s %s")% (os.path.basename(sys.argv[0]), prog_version)
sys.exit(0)
isos = args[0:len(args) - 1]
if not which("syslinux"):
- print("Sorry, syslinux not available. Exiting.")
- print("Please install syslinux or consider using the --grub option.")
+ print >> sys.stderr, 'Sorry, syslinux not available. Exiting.'
+ print >> sys.stderr, 'Please install syslinux or consider using the --grub option.'
sys.exit(1)
- # TODO check for valid blockdevice, vfat and mount functions
+ # TODO
+ # * check for valid blockdevice, vfat and mount functions
# if device is not None:
# check_for_vat(device)
# mount_target(partition)
# FIXME
target = '/mnt/usb-sdb1'
- # TODO it doesn't need to be a ISO, could be /live/image as well
+ # TODO
+ # * it doesn't need to be a ISO, could be /live/image as well
for iso in isos:
print("debug: iso = %s") % iso
# loopback_mount(iso)
grml_flavour_short = grml_flavour.replace('-','')
print("debug: grml_flavour_short = %s") % grml_flavour_short
- copy_grml_files(grml_flavour, iso_mount, target)
-
+ # copy_grml_files(grml_flavour, iso_mount, target)
if options.mbr:
- print("debug: would install MBR now")
+ # make sure we install MBR on /dev/sdX and not /dev/sdX#
+ if device[-1:].isdigit():
+ device = re.match(r'(.*?)\d*$', device).group(1)
+
+ try:
+ install_mbr(device)
+ except IOError, e:
+ print >>sys.stderr, "Execution failed:", e
+ sys.exit(1)
+ except Exception, e:
+ print >>sys.stderr, "Execution failed:", e
+ sys.exit(1)
install_bootloader(device)
projects / grml2usb.git / blobdiff