def listUnused():
# Main menu configuration
grub = grubConf()
if os.path.exists(CONF_GRUB):
grub.parseConf(CONF_GRUB)
root = getBoot()
# Find kernel entries
kernels_in_use = []
for entry in grub.entries:
os_entry = parseGrubEntry(entry)
# os_entry can have root or uuid depending on the distribution
if os_entry["os_type"] in ["linux", "xen"]:
if os_entry.get("root", "") == root or getDeviceByUUID(os_entry.get("uuid", "")) == root:
kernel_version = os_entry["kernel"].split("kernel-")[1]
kernels_in_use.append(kernel_version)
# Find installed kernels
kernels_installed = []
for _file in os.listdir(BOOT_DIR):
if _file.startswith("kernel-"):
kernel_version = _file.split("kernel-")[1]
kernels_installed.append(kernel_version)
kernels_unused = set(kernels_installed) - set(kernels_in_use)
kernels_unused = list(kernels_unused)
return kernels_unused
def setOption(option, value):
# Main menu configuration
grub = grubConf()
if os.path.exists(CONF_GRUB):
grub.parseConf(CONF_GRUB)
# Alternate menu configuration
grub_alt = grubConf()
if os.path.exists(CONF_GRUB_ALT):
grub_alt.parseConf(CONF_GRUB_ALT)
if option == 'default':
grub.setOption("default", value)
for index, entry in enumerate(grub.entries):
if value == "saved":
entry.setCommand("savedefault", "")
else:
entry.unsetCommand("savedefault")
default_entry = os.path.join(GRUB_DIR, "default")
if not os.path.exists(default_entry):
file(default_entry, "w").write("\x00\x30\x0a\x0a\x0a\x0a\x0a\x0a\x0a\x0a")
elif option in 'timeout':
grub.setOption("timeout", value)
elif option == 'password':
#grub.setOption("password", "--md5 %s" % md5crypt(value))
grub.setOption("password", value)
elif option == 'background':
grub.setOption("background", value)
elif option == 'splash':
root = getBoot()
root_grub = grubAddress(root)
grub.setOption("splashimage", "%s%s" % (root_grub, value))
# Copy options to alternative configuration.
copyOptions(grub, grub_alt)
# Save changes to both files.
grub.write(CONF_GRUB)
grub_alt.write(CONF_GRUB_ALT)
# Notify all COMAR clients
notify("Boot.Loader", "Changed", "option")
def updateKernelEntry(version, root):
# Root device
if not len(root):
root = getBoot()
# Kernel version
if not len(version):
version = os.uname()[2]
# Main menu configuration
grub = grubConf()
if os.path.exists(CONF_GRUB):
grub.parseConf(CONF_GRUB)
# Alternative menu configuration
grub_alt = grubConf()
if os.path.exists(CONF_GRUB_ALT):
grub_alt.parseConf(CONF_GRUB_ALT)
# Copy options to alternative configuration.
copyOptions(grub, grub_alt)
# Add new kernel to main configuration.
addNewKernel(grub, version, root)
# Move old kernels to alternative configuration.
moveOldKernels(grub, grub_alt, root)
# Regroup kernels in alternative configuration. This will shorten list.
regroupKernels(grub_alt, root, MAX_ENTRIES)
# Add cross links between two configuration files.
addLinks(grub, grub_alt, CONF_GRUB, CONF_GRUB_ALT)
# Save changes to both files.
grub.write(CONF_GRUB)
grub_alt.write(CONF_GRUB_ALT)
# Notify all COMAR clients
notify("Boot.Loader", "Changed", "option")
def removeEntry(index, title, uninstall):
# Main menu configuration
grub = grubConf()
if os.path.exists(CONF_GRUB):
grub.parseConf(CONF_GRUB)
index = int(index)
# Check entry title
entry = grub.entries[index]
if entry.title != title:
fail(FAIL_NOENTRY)
# Get default index
default_index = grub.getOption("default", 0)
try:
default_index = int(default_index)
except ValueError:
default_index = 0
# Remove entry
grub.removeEntry(entry)
# Fix default index, if necessary
if index <= default_index:
default_index = max(0, default_index - 1)
grub.setOption("default", default_index)
# Save changes to both files.
grub.write(CONF_GRUB)
# Notify all COMAR clients
notify("Boot.Loader", "Changed", "entry")
if uninstall == "yes":
os_entry = parseGrubEntry(entry)
if os_entry["os_type"] in ["linux", "xen"] and os_entry["root"] == getBoot():
kernel_version = os_entry["kernel"].split("kernel-")[1]
removeKernel(kernel_version)
