local_datestamp = DATESTAMP
return("""\
+## main grub2 configuration - generated by grml2usb [main config generated at: %(local_datestamp)s]
set default=0
set timeout=5
set menu_color_highlight=white/blue
fi
-## main grub2 configuration - generated by grml2usb [main config generated at: %(local_datestamp)s]
menuentry "%(grml_flavour)s (default)" {
set root=(hd0,%(install_partition)s)
linux /boot/release/%(grml_flavour)s/linux26 apm=power-off lang=us vga=791 quiet boot=live nomce module=%(grml_flavour)s %(bootoptions)s
foreground = 000000
background = FFCC33
+# root=(hd0,%(install_partition)s)
+
# define entries:
title %(grml_flavour)s - Default boot (using 1024x768 framebuffer)
kernel /boot/release/%(grml_flavour)s/linux26 apm=power-off lang=us vga=791 quiet boot=live nomce module=%(grml_flavour)s
initrd /boot/release/%(grml_flavour)s/initrd.gz
-""" % {'grml_flavour': grml_flavour, 'local_datestamp': local_datestamp, 'bootoptions': bootoptions} )
+""" % {'grml_flavour': grml_flavour, 'local_datestamp': local_datestamp, 'bootoptions': bootoptions, 'install_partition': install_partition } )
def generate_isolinux_splash(grml_flavour):
try:
mount(device, device_mountpoint, "")
logging.debug("grub-install --root-directory=%s %s", device_mountpoint, device)
- proc = subprocess.Popen(["grub-install", "--root-directory=%s" % device_mountpoint, device])
+ proc = subprocess.Popen(["grub-install", "--root-directory=%s" % device_mountpoint, device], stdout=file(os.devnull, "r+"))
proc.wait()
if proc.returncode != 0:
raise Exception("error executing grub-install")
def install_lilo_mbr(lilo, device):
"""TODO"""
- # TODO: check out the *real* difference between:
- # * mbr-install /dev/ice
- # * lilo -S /dev/null -M /dev/ice ext && lilo -S /dev/null -A /dev/ice 1
- # * cat /usr/lib/syslinux/mbr.bin > /dev/ice
- # * syslinux -sf /dev/iceX
- # * ...?
-
# to support -A for extended partitions:
logging.info("Installing MBR")
logging.debug("%s -S /dev/null -M %s ext" % (lilo, device))
logging.critical("Execution failed:", error)
+def InstallMBR(mbrtemplate, device, partition, ismirbsdmbr=True):
+ """Installs an MBR to a device.
+
+ Retrieve the partition table from "device", install an MBR from
+ the "mbrtemplate" file, set the "partition" (0..3) active, and
+ install the result back to "device".
+
+ "device" may be the name of a file assumed to be a hard disc
+ (or USB stick) image, or something like "/dev/sdb". "partition"
+ must be a number between 0 and 3, inclusive. "mbrtemplate" must
+ be a valid MBR file of at least 440 (439 if ismirbsdmbr) bytes.
+
+ If "ismirbsdmbr", the partitions' active flags are not changed.
+ Instead, the MBR's default value is set accordingly.
+ """
+
+ if (partition < 0) or (partition > 3):
+ raise ValueError("partition must be between 0 and 3")
+
+ if ismirbsdmbr:
+ nmbrbytes = 439
+ else:
+ nmbrbytes = 440
+
+ tmpf = tempfile.NamedTemporaryFile()
+
+ logging.debug("executing: dd if='%s' of='%s' bs=512 count=1" % (device, tmpf.name))
+ proc = subprocess.Popen(["dd", "if=%s" % device, "of=%s" % tmpf.name, "bs=512", "count=1"], stderr=file(os.devnull, "r+"))
+ proc.wait()
+ if proc.returncode != 0:
+ raise Exception("error executing dd (first run)")
+ # os.system("dd if='%s' of='%s' bs=512 count=1" % (device, tmpf.name))
+
+ logging.debug("executing: dd if=%s of=%s bs=%s count=1 conv=notrunc" % (mbrtemplate, tmpf.name, nmbrbytes))
+ proc = subprocess.Popen(["dd", "if=%s" % mbrtemplate, "of=%s" % tmpf.name, "bs=%s" % nmbrbytes, "count=1", "conv=notrunc"], stderr=file(os.devnull, "r+"))
+ proc.wait()
+ if proc.returncode != 0:
+ raise Exception("error executing dd (second run)")
+ # os.system("dd if='%s' of='%s' bs=%d count=1 conv=notrunc" % (mbrtemplate, tmpf.name, nmbrbytes))
+
+ mbrcode = tmpf.file.read(512)
+ if len(mbrcode) < 512:
+ raise EOFError("MBR size (%d) < 512" % len(mbrcode))
+
+ if ismirbsdmbr:
+ mbrcode = mbrcode[0:439] + chr(partition) + \
+ mbrcode[440:510] + "\x55\xAA"
+ else:
+ actives = ["\x00", "\x00", "\x00", "\x00"]
+ actives[partition] = "\x80"
+ mbrcode = mbrcode[0:446] + actives[0] + \
+ mbrcode[447:462] + actives[1] + \
+ mbrcode[463:478] + actives[2] + \
+ mbrcode[479:494] + actives[3] + \
+ mbrcode[495:510] + "\x55\xAA"
+
+ tmpf.file.seek(0)
+ tmpf.file.truncate()
+ tmpf.file.write(mbrcode)
+ tmpf.file.close()
+
+ #os.system("dd if='%s' of='%s' bs=512 count=1 conv=notrunc" % (tmpf.name, device))
+ logging.debug("executing: dd if='%s' of='%s' bs=512 count=1 conv=notrunc" % (tmpf.name, "/tmp/mbr"))
+ proc = subprocess.Popen(["dd", "if=%s" % tmpf.name, "of=%s" % "/tmp/mbr", "bs=512", "count=1", "conv=notrunc"], stderr=file(os.devnull, "r+"))
+ proc.wait()
+ if proc.returncode != 0:
+ raise Exception("error executing dd (third run)")
+ # os.system("dd if='%s' of='%s' bs=512 count=1 conv=notrunc" % (tmpf.name, "/tmp/mbr"))
+ del tmpf
+
def install_mbr(device):
"""Install a default master boot record on given device
@target: directory where the ISO should be mounted to
@options: mount specific options"""
- # notice: options.dryrun does not work here, as we have to
+ # note: options.dryrun does not work here, as we have to
# locate files and identify the grml flavour
logging.debug("mount %s %s %s" % (mount_options, source, target))
proc = subprocess.Popen(["mount"] + list(mount_options) + [source, target])
if udev_info.returncode == 2:
raise CriticalException("Failed to read device %s"
- "(wrong UID/permissions or device not present?)" % partition)
+ " (wrong UID/permissions or device not present?)" % partition)
if filesystem != "vfat":
raise CriticalException("Device %s does not contain a FAT16 partition." % partition)
# * make sure grml_flavour, iso_mount, target are set when the function is called, otherwise raise exception
# * 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 and get rid of spaghettis ;)
if options.dryrun:
logging.info("Would copy files to %s", iso_mount)
copy_bootloader_files(iso_mount, target)
if not options.dryrun:
- handle_bootloader_config(grml_flavour, device, target) # FIXME
+ handle_bootloader_config(grml_flavour, device, target)
# make sure we sync filesystems before returning
proc = subprocess.Popen(["sync"])
return grml_flavour
-
-def handle_bootloader_config(grml_flavour, device, target):
- """TODO"""
+def handle_grub_config(grml_flavour, device, target):
+ """ TODO """
logging.debug("Generating grub configuration")
#with open("...", "w") as f:
install_partition = device[-1:]
# grub1 config
- logging.debug("Creating grub1 configuration file")
- grub_config_file = open(grub_target + 'menu.lst', 'w')
- grub_config_file.write(generate_grub1_config(grml_flavour, install_partition, options.bootoptions))
- grub_config_file.close()
-
+ #logging.debug("Creating grub1 configuration file")
+ #grub_config_file = open(grub_target + 'menu.lst', 'w')
+ #grub_config_file.write(generate_grub1_config(grml_flavour, install_partition, options.bootoptions))
+ #grub_config_file.close()
# TODO => generate_main_grub1_config() && generate_flavour_specific_grub1_config()
# grub2 config
main_identifier = re.compile(".*main config generated at: %s.*" % re.escape(str(DATESTAMP)))
if not re.match(main_identifier, string):
grub2_config_file = open(grub2_cfg, 'w')
- logging.info("Notice: grml flavour %s is being installed as the default booting system." % grml_flavour)
+ logging.info("Note: grml flavour %s is being installed as the default booting system." % grml_flavour)
grub2_config_file.write(generate_main_grub2_config(grml_flavour, install_partition, options.bootoptions))
grub2_config_file.close()
else:
grub_flavour_config = True
if os.path.isfile(grub2_cfg):
string = open(grub2_cfg).readlines()
- logging.info("Notice: you can boot flavour %s using '%s' on the commandline." % (grml_flavour, grml_flavour))
+ logging.info("Note: you can boot flavour %s using '%s' on the commandline." % (grml_flavour, grml_flavour))
flavour = re.compile("grml2usb for %s: %s" % (re.escape(grml_flavour), re.escape(str(DATESTAMP))))
for line in string:
if flavour.match(line):
grub2_config_file.close( )
+def handle_syslinux_config(grml_flavour, target):
+ """ TODO
+ """
+
logging.info("Generating syslinux configuration")
syslinux_target = target + '/boot/syslinux/'
# should be present via copy_bootloader_files(), but make sure it exits:
main_identifier = re.compile(".*main config generated at: %s.*" % re.escape(str(DATESTAMP)))
if not re.match(main_identifier, string):
syslinux_config_file = open(syslinux_cfg, 'w')
- logging.info("Notice: grml flavour %s is being installed as the default booting system." % grml_flavour)
+ logging.info("Note: grml flavour %s is being installed as the default booting system." % grml_flavour)
syslinux_config_file.write(generate_main_syslinux_config(grml_flavour, options.bootoptions))
syslinux_config_file.close()
else:
syslinux_flavour_config = True
if os.path.isfile(syslinux_cfg):
string = open(syslinux_cfg).readlines()
- logging.info("Notice: you can boot flavour %s using '%s' on the commandline." % (grml_flavour, grml_flavour))
+ logging.info("Note: you can boot flavour %s using '%s' on the commandline." % (grml_flavour, grml_flavour))
flavour = re.compile("grml2usb for %s: %s" % (re.escape(grml_flavour), re.escape(str(DATESTAMP))))
for line in string:
if flavour.match(line):
isolinux_splash.close( )
+def handle_bootloader_config(grml_flavour, device, target):
+ """TODO"""
+
+ if options.grub:
+ handle_grub_config(grml_flavour, device, target)
+ else:
+ handle_syslinux_config(grml_flavour, target)
+
+
def handle_iso(iso, device):
"""Main logic for mounting ISOs and copying files.
if not options.skipmbr:
if device[-1:].isdigit():
mbr_device = re.match(r'(.*?)\d*$', device).group(1)
+ partition_number = int(device[-1:]) - 1
try:
- install_mbr(mbr_device)
+ # install_mbr(mbr_device)
+ InstallMBR('/usr/share/grml2usb/mbr/mbrmgr', mbr_device, partition_number, True)
except IOError, error:
logging.critical("Execution failed: %s", error)
sys.exit(1)
device = args[len(args) - 1]
isos = args[0:len(args) - 1]
+ if device[-1:].isdigit():
+ if int(device[-1:]) > 4:
+ logging.critical("Fatal: installation on partition number >4 not supported. (As the BIOS won't support it.)")
+ sys.exit(1)
+ else:
+ logging.critical("Fatal: installation on raw device not supported. (As the BIOS won't support it.)")
+ sys.exit(1)
+
# provide upgrade path
handle_compat_warning(device)
projects / grml2usb.git / blobdiff