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bootloader.py
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bootloader.py
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# bootloader.py
# Anaconda's bootloader configuration module.
#
# Copyright (C) 2011 Red Hat, Inc.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# the GNU General Public License v.2, or (at your option) any later version.
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY expressed or implied, including the implied warranties of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details. You should have received a copy of the
# GNU General Public License along with this program; if not, write to the
# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA. Any Red Hat trademarks that are incorporated in the
# source code or documentation are not subject to the GNU General Public
# License and may only be used or replicated with the express permission of
# Red Hat, Inc.
#
# Red Hat Author(s): David Lehman <dlehman@redhat.com>
# Matthew Miller <mattdm@redhat.com> (extlinux portion)
#
import collections
import os
import re
import struct
import blivet
from parted import PARTITION_BIOS_GRUB
from glob import glob
from pyanaconda import iutil
from blivet.devicelibs import raid
from pyanaconda.isys import sync
from pyanaconda.product import productName
from pyanaconda.flags import flags, can_touch_runtime_system
from blivet.errors import StorageError
from blivet.fcoe import fcoe
import pyanaconda.network
from pyanaconda.errors import errorHandler, ERROR_RAISE, ZIPLError
from pyanaconda.packaging.rpmostreepayload import RPMOSTreePayload
from pyanaconda.nm import nm_device_hwaddress
from blivet import platform
from blivet.size import Size
from pyanaconda.i18n import _, N_
import logging
log = logging.getLogger("anaconda")
def get_boot_block(device, seek_blocks=0):
status = device.status
if not status:
try:
device.setup()
except StorageError:
return ""
block_size = device.partedDevice.sectorSize
fd = iutil.eintr_retry_call(os.open, device.path, os.O_RDONLY)
if seek_blocks:
os.lseek(fd, seek_blocks * block_size, 0)
block = iutil.eintr_retry_call(os.read, fd, 512)
iutil.eintr_retry_call(os.close, fd)
if not status:
try:
device.teardown(recursive=True)
except StorageError:
pass
return block
def is_windows_boot_block(block):
try:
windows = (len(block) >= 512 and
struct.unpack("H", block[0x1fe: 0x200]) == (0xaa55,))
except struct.error:
windows = False
return windows
def has_windows_boot_block(device):
return is_windows_boot_block(get_boot_block(device))
class serial_opts(object):
def __init__(self):
self.speed = None
self.parity = None
self.word = None
self.stop = None
self.flow = None
def parse_serial_opt(arg):
"""Parse and split serial console options.
Documentation/kernel-parameters.txt says:
ttyS<n>[,options]
Use the specified serial port. The options are of
the form "bbbbpnf", where "bbbb" is the baud rate,
"p" is parity ("n", "o", or "e"), "n" is number of
bits, and "f" is flow control ("r" for RTS or
omit it). Default is "9600n8".
but note that everything after the baud rate is optional, so these are
all valid: 9600, 19200n, 38400n8, 9600e7r.
Also note that the kernel assumes 1 stop bit; this can't be changed.
"""
opts = serial_opts()
m = re.match(r'\d+', arg)
if m is None:
return opts
opts.speed = m.group()
idx = len(opts.speed)
try:
opts.parity = arg[idx+0]
opts.word = arg[idx+1]
opts.flow = arg[idx+2]
except IndexError:
pass
return opts
def _is_on_iscsi(device):
"""Tells whether a given device is on an iSCSI disk or not."""
return all(isinstance(disk, blivet.devices.iScsiDiskDevice)
for disk in device.disks)
class BootLoaderError(Exception):
pass
class Arguments(set):
ordering_dict = {
"rhgb" : 99,
"quiet" : 100
}
def _merge_ip(self):
"""
Find ip= arguments targetting the same interface and merge them.
"""
# partition the input
def partition_p(arg):
# we are only interested in ip= parameters that use some kind of
# automatic network setup:
return arg.startswith("ip=") and arg.count(":") == 1
ip_params = filter(partition_p, self)
rest = set(filter(lambda p: not partition_p(p), self))
# split at the colon:
ip_params = map(lambda p: p.split(":"), ip_params)
# create mapping from nics to their configurations
config = collections.defaultdict(list)
for (nic, cfg) in ip_params:
config[nic].append(cfg)
# generate the new parameters:
ip_params = set()
for nic in config:
ip_params.add("%s:%s" % (nic, ",".join(sorted(config[nic]))))
# update the set
self.clear()
self.update(rest)
self.update(ip_params)
return self
def __str__(self):
self._merge_ip()
# sort the elements according to their values in ordering_dict. The
# higher the number the closer to the final string the argument
# gets. The default is 50.
lst = sorted(self, key=lambda s: self.ordering_dict.get(s, 50))
return " ".join(lst)
class BootLoaderImage(object):
""" Base class for bootloader images. Suitable for non-linux OS images. """
def __init__(self, device=None, label=None, short=None):
self.label = label
self.short_label = short
self.device = device
class LinuxBootLoaderImage(BootLoaderImage):
def __init__(self, device=None, label=None, short=None, version=None):
super(LinuxBootLoaderImage, self).__init__(device=device, label=label)
self.label = label # label string
self.short_label = short # shorter label string
self.device = device # StorageDevice instance
self.version = version # kernel version string
self._kernel = None # filename string
self._initrd = None # filename string
@property
def kernel(self):
filename = self._kernel
if self.version and not filename:
filename = "vmlinuz-%s" % self.version
return filename
@property
def initrd(self):
filename = self._initrd
if self.version and not filename:
filename = "initramfs-%s.img" % self.version
return filename
class TbootLinuxBootLoaderImage(LinuxBootLoaderImage):
_multiboot = "tboot.gz" # filename string
_mbargs = ["logging=vga,serial,memory"]
_args = ["intel_iommu=on"]
def __init__(self, device=None, label=None, short=None, version=None):
super(TbootLinuxBootLoaderImage, self).__init__(
device=device, label=label,
short=short, version=version)
@property
def multiboot(self):
return self._multiboot
@property
def mbargs(self):
return self._mbargs
@property
def args(self):
return self._args
class BootLoader(object):
name = "Generic Bootloader"
packages = []
config_file = None
config_file_mode = 0o600
can_dual_boot = False
can_update = False
image_label_attr = "label"
encryption_support = False
stage2_is_valid_stage1 = False
# requirements for stage2 devices
stage2_device = None
stage2_device_types = []
stage2_raid_levels = []
stage2_raid_metadata = []
stage2_raid_member_types = []
stage2_mountpoints = ["/boot", "/"]
stage2_bootable = False
stage2_must_be_primary = True
stage2_description = N_("/boot file system")
stage2_max_end = Size("2 TiB")
@property
def stage2_format_types(self):
return ["ext4", "ext3", "ext2"]
# this is so stupid...
global_preserve_args = ["speakup_synth", "apic", "noapic", "apm", "ide",
"noht", "acpi", "video", "pci", "nodmraid",
"nompath", "nomodeset", "noiswmd", "fips",
"selinux", "biosdevname", "ipv6.disable",
"net.ifnames"]
preserve_args = []
_trusted_boot = False
def __init__(self):
self.boot_args = Arguments()
self.dracut_args = Arguments()
self.disks = []
self._disk_order = []
# timeout in seconds
self._timeout = None
self.password = None
# console/serial stuff
self.console = ""
self.console_options = ""
self._set_console()
# list of BootLoaderImage instances representing bootable OSs
self.linux_images = []
self.chain_images = []
# default image
self._default_image = None
self._update_only = False
self.skip_bootloader = False
self.errors = []
self.warnings = []
self.reset()
def reset(self):
""" Reset stage1 and stage2 values """
# the device the bootloader will be installed on
self.stage1_device = None
# the "boot disk", meaning the disk stage1 _will_ go on
self.stage1_disk = None
self.stage2_device = None
self.stage2_is_preferred_stage1 = False
self.errors = []
self.problems = []
self.warnings = []
#
# disk list access
#
@property
def disk_order(self):
"""Potentially partial order for disks."""
return self._disk_order
@disk_order.setter
def disk_order(self, order):
log.debug("new disk order: %s", order)
self._disk_order = order
if self.disks:
self._sort_disks()
def _sort_disks(self):
"""Sort the internal disk list. """
for name in reversed(self.disk_order):
try:
idx = [d.name for d in self.disks].index(name)
except ValueError:
log.error("bios order specified unknown disk %s", name)
continue
self.disks.insert(0, self.disks.pop(idx))
def set_disk_list(self, disks):
self.disks = disks[:]
self._sort_disks()
#
# image list access
#
@property
def default(self):
"""The default image."""
if not self._default_image and self.linux_images:
self._default_image = self.linux_images[0]
return self._default_image
@default.setter
def default(self, image):
if image not in self.images:
raise ValueError("new default image not in image list")
log.debug("new default image: %s", image)
self._default_image = image
@property
def images(self):
""" List of OS images that will be included in the configuration. """
all_images = self.linux_images
all_images.extend(i for i in self.chain_images if i.label)
return all_images
def clear_images(self):
"""Empty out the image list."""
self.linux_images = []
self.chain_images = []
def add_image(self, image):
"""Add a BootLoaderImage instance to the image list."""
if isinstance(image, LinuxBootLoaderImage):
self.linux_images.append(image)
else:
self.chain_images.append(image)
def image_label(self, image):
"""Return the appropriate image label for this bootloader."""
return getattr(image, self.image_label_attr)
#
# platform-specific data access
#
@property
def disklabel_types(self):
return platform.platform._disklabel_types
@property
def device_descriptions(self):
return platform.platform.bootStage1ConstraintDict["descriptions"]
#
# constraint checking for target devices
#
def _is_valid_md(self, device, raid_levels=None,
metadata=None, member_types=None, desc=""):
ret = True
if device.type != "mdarray":
return ret
if raid_levels and device.level not in raid_levels:
levels_str = ",".join("%s" % l for l in raid_levels)
self.errors.append(_("RAID sets that contain '%(desc)s' must have one "
"of the following raid levels: %(raid_level)s.")
% {"desc" : desc, "raid_level" : levels_str})
ret = False
# new arrays will be created with an appropriate metadata format
if device.exists and \
metadata and device.metadataVersion not in metadata:
self.errors.append(_("RAID sets that contain '%(desc)s' must have one "
"of the following metadata versions: %(metadata_versions)s.")
% {"desc": desc, "metadata_versions": ",".join(metadata)})
ret = False
if member_types:
for member in device.devices:
if not self._device_type_match(member, member_types):
self.errors.append(_("RAID sets that contain '%(desc)s' must "
"have one of the following device "
"types: %(types)s.")
% {"desc" : desc, "types" : ",".join(member_types)})
ret = False
log.debug("_is_valid_md(%s) returning %s", device.name, ret)
return ret
def _is_valid_disklabel(self, device, disklabel_types=None):
ret = True
if self.disklabel_types:
for disk in device.disks:
label_type = getattr(disk.format, "labelType", None)
if not label_type or label_type not in self.disklabel_types:
types_str = ",".join(disklabel_types)
self.errors.append(_("%(name)s must have one of the following "
"disklabel types: %(types)s.")
% {"name" : device.name, "types" : types_str})
ret = False
log.debug("_is_valid_disklabel(%s) returning %s", device.name, ret)
return ret
def _is_valid_format(self, device, format_types=None, mountpoints=None,
desc=""):
ret = True
if format_types and device.format.type not in format_types:
self.errors.append(_("%(desc)s cannot be of type %(type)s.")
% {"desc" : desc, "type" : device.format.type})
ret = False
if mountpoints and hasattr(device.format, "mountpoint") \
and device.format.mountpoint not in mountpoints:
self.errors.append(_("%(desc)s must be mounted on one of %(mountpoints)s.")
% {"desc" : desc, "mountpoints" : ", ".join(mountpoints)})
ret = False
log.debug("_is_valid_format(%s) returning %s", device.name, ret)
return ret
def _is_valid_size(self, device, desc=""):
ret = True
msg = None
errors = []
if device.format.minSize and device.format.maxSize:
msg = (_("%(desc)s must be between %(min)d and %(max)d MB in size")
% {"desc" : desc, "min" : device.format.minSize,
"max" : device.format.maxSize})
if device.format.minSize and device.size < device.format.minSize:
if msg is None:
errors.append(_("%(desc)s must not be smaller than %(min)dMB.")
% {"desc" : desc, "min" : device.format.minSize})
else:
errors.append(msg)
ret = False
if device.format.maxSize and device.size > device.format.maxSize:
if msg is None:
errors.append(_("%(desc)s must not be larger than %(max)dMB.")
% {"desc" : desc, "max" : device.format.maxSize})
elif msg not in errors:
# don't add the same error string twice
errors.append(msg)
ret = False
log.debug("_is_valid_size(%s) returning %s", device.name, ret)
return ret
def _is_valid_location(self, device, max_end=None, desc=""):
ret = True
if max_end and device.type == "partition" and device.partedPartition:
end_sector = device.partedPartition.geometry.end
sector_size = device.partedPartition.disk.device.sectorSize
end = Size(sector_size * end_sector)
if end > max_end:
self.errors.append(_("%(desc)s must be within the first %(max_end)s of "
"the disk.") % {"desc": desc, "max_end": max_end})
ret = False
log.debug("_is_valid_location(%s) returning %s", device.name, ret)
return ret
def _is_valid_partition(self, device, primary=None, desc=""):
ret = True
if device.type == "partition" and primary and not device.isPrimary:
self.errors.append(_("%s must be on a primary partition.") % desc)
ret = False
log.debug("_is_valid_partition(%s) returning %s", device.name, ret)
return ret
#
# target/stage1 device access
#
def _device_type_index(self, device, types):
""" Return the index of the matching type in types to device's type.
Return None if no match is found. """
index = None
try:
index = types.index(device.type)
except ValueError:
if "disk" in types and device.isDisk:
index = types.index("disk")
return index
def _device_type_match(self, device, types):
""" Return True if device is of one of the types in the list types. """
return self._device_type_index(device, types) is not None
def device_description(self, device):
device_types = self.device_descriptions.keys()
idx = self._device_type_index(device, device_types)
if idx is None:
raise ValueError("No description available for %s" % device.type)
# this looks unnecessarily complicated, but it handles the various
# device types that we treat as disks
return self.device_descriptions[device_types[idx]]
def set_preferred_stage1_type(self, preferred):
""" Set a preferred type of stage1 device. """
if not self.stage2_is_valid_stage1:
# "partition" means first sector of stage2 and is only meaningful
# for bootloaders that can use stage2 as stage1
return
if preferred == "mbr":
# "mbr" is already the default
return
# partition means "use the stage2 device for a stage1 device"
self.stage2_is_preferred_stage1 = True
def is_valid_stage1_device(self, device, early=False):
""" Return True if the device is a valid stage1 target device.
Also collect lists of errors and warnings.
The criteria for being a valid stage1 target device vary from
platform to platform. On some platforms a disk with an msdos
disklabel is a valid stage1 target, while some platforms require
a special device. Some examples of these special devices are EFI
system partitions on EFI machines, PReP boot partitions on
iSeries, and Apple bootstrap partitions on Mac.
The 'early' keyword argument is a boolean flag indicating whether
or not this check is being performed at a point where the mountpoint
cannot be expected to be set for things like EFI system partitions.
"""
self.errors = []
self.warnings = []
valid = True
constraint = platform.platform.bootStage1ConstraintDict
if device is None:
return False
if not self._device_type_match(device, constraint["device_types"]):
log.debug("stage1 device cannot be of type %s", device.type)
return False
if blivet.arch.isS390() and _is_on_iscsi(device):
log.debug("stage1 device cannot be on an iSCSI disk on s390(x)")
return False
description = self.device_description(device)
if self.stage2_is_valid_stage1 and device == self.stage2_device:
# special case
valid = (self.stage2_is_preferred_stage1 and
self.is_valid_stage2_device(device))
# we'll be checking stage2 separately so don't duplicate messages
self.problems = []
self.warnings = []
return valid
if device.protected:
valid = False
if not self._is_valid_disklabel(device,
disklabel_types=self.disklabel_types):
valid = False
if not self._is_valid_size(device, desc=description):
valid = False
if not self._is_valid_location(device,
max_end=constraint["max_end"],
desc=description):
valid = False
if not self._is_valid_md(device,
raid_levels=constraint["raid_levels"],
metadata=constraint["raid_metadata"],
member_types=constraint["raid_member_types"],
desc=description):
valid = False
if not self.stage2_bootable and not getattr(device, "bootable", True):
log.warning("%s not bootable", device.name)
# XXX does this need to be here?
if getattr(device.format, "label", None) in ("ANACONDA", "LIVE"):
log.info("ignoring anaconda boot disk")
valid = False
if early:
mountpoints = []
else:
mountpoints = constraint["mountpoints"]
if not self._is_valid_format(device,
format_types=constraint["format_types"],
mountpoints=mountpoints,
desc=description):
valid = False
if not self.encryption_support and device.encrypted:
self.errors.append(_("%s cannot be on an encrypted block "
"device.") % description)
valid = False
log.debug("is_valid_stage1_device(%s) returning %s", device.name, valid)
return valid
def set_stage1_device(self, devices):
self.stage1_device = None
if not self.stage1_disk:
self.reset()
raise BootLoaderError("need stage1 disk to set stage1 device")
if self.stage2_is_preferred_stage1:
self.stage1_device = self.stage2_device
return
for device in devices:
if self.stage1_disk not in device.disks:
continue
if self.is_valid_stage1_device(device):
if flags.imageInstall and device.isDisk:
# GRUB2 will install to /dev/loop0 but not to
# /dev/mapper/<image_name>
self.stage1_device = device.parents[0]
else:
self.stage1_device = device
break
if not self.stage1_device:
self.reset()
raise BootLoaderError("failed to find a suitable stage1 device")
#
# boot/stage2 device access
#
def is_valid_stage2_device(self, device, linux=True, non_linux=False):
""" Return True if the device is suitable as a stage2 target device.
Also collect lists of errors and warnings.
"""
self.errors = []
self.warnings = []
valid = True
if device is None:
return False
if device.protected:
valid = False
if blivet.arch.isS390() and _is_on_iscsi(device):
self.errors.append(_("%s cannot be on an iSCSI disk on s390(x)") % self.stage2_description)
valid = False
if not self._device_type_match(device, self.stage2_device_types):
self.errors.append(_("%(desc)s cannot be of type %(type)s")
% {"desc" : _(self.stage2_description), "type" : device.type})
valid = False
if not self._is_valid_disklabel(device,
disklabel_types=self.disklabel_types):
valid = False
if not self._is_valid_size(device, desc=_(self.stage2_description)):
valid = False
if not self._is_valid_location(device,
max_end=self.stage2_max_end,
desc=_(self.stage2_description)):
valid = False
if not self._is_valid_partition(device,
primary=self.stage2_must_be_primary):
valid = False
if not self._is_valid_md(device,
raid_levels=self.stage2_raid_levels,
metadata=self.stage2_raid_metadata,
member_types=self.stage2_raid_member_types,
desc=_(self.stage2_description)):
valid = False
if linux and \
not self._is_valid_format(device,
format_types=self.stage2_format_types,
mountpoints=self.stage2_mountpoints,
desc=_(self.stage2_description)):
valid = False
non_linux_format_types = platform.platform._non_linux_format_types
if non_linux and \
not self._is_valid_format(device,
format_types=non_linux_format_types):
valid = False
if not self.encryption_support and device.encrypted:
self.errors.append(_("%s cannot be on an encrypted block "
"device.") % _(self.stage2_description))
valid = False
log.debug("is_valid_stage2_device(%s) returning %s", device.name, valid)
return valid
#
# miscellaneous
#
def has_windows(self, devices):
return False
@property
def timeout(self):
"""Bootloader timeout in seconds."""
if self._timeout is not None:
t = self._timeout
else:
t = 5
return t
def check(self):
""" Run additional bootloader checks """
return True
@timeout.setter
def timeout(self, seconds):
self._timeout = seconds
@property
def update_only(self):
return self._update_only
@update_only.setter
def update_only(self, value):
if value and not self.can_update:
raise ValueError("this boot loader does not support updates")
elif self.can_update:
self._update_only = value
def set_boot_args(self, *args, **kwargs):
""" Set up the boot command line.
Keyword Arguments:
storage - a blivet.Storage instance
All other arguments are expected to have a dracutSetupArgs()
method.
"""
storage = kwargs.pop("storage", None)
#
# FIPS
#
if flags.cmdline.get("fips") == "1":
self.boot_args.add("boot=%s" % self.stage2_device.fstabSpec)
#
# dracut
#
# storage
from blivet.devices import NetworkStorageDevice
dracut_devices = [storage.rootDevice]
if self.stage2_device != storage.rootDevice:
dracut_devices.append(self.stage2_device)
dracut_devices.extend(storage.fsset.swapDevices)
# Does /usr have its own device? If so, we need to tell dracut
usr_device = storage.mountpoints.get("/usr")
if usr_device:
dracut_devices.extend([usr_device])
done = []
for device in dracut_devices:
for dep in storage.devices:
if dep in done:
continue
if device != dep and not device.dependsOn(dep):
continue
setup_args = dep.dracutSetupArgs()
if not setup_args:
continue
self.boot_args.update(setup_args)
self.dracut_args.update(setup_args)
done.append(dep)
# network storage
# XXX this is nothing to be proud of
if isinstance(dep, NetworkStorageDevice):
setup_args = pyanaconda.network.dracutSetupArgs(dep)
self.boot_args.update(setup_args)
self.dracut_args.update(setup_args)
# passed-in objects
for cfg_obj in list(args) + kwargs.values():
if hasattr(cfg_obj, "dracutSetupArgs"):
setup_args = cfg_obj.dracutSetupArgs()
self.boot_args.update(setup_args)
self.dracut_args.update(setup_args)
else:
setup_string = cfg_obj.dracutSetupString()
self.boot_args.add(setup_string)
self.dracut_args.add(setup_string)
# This is needed for FCoE, bug #743784. The case:
# We discover LUN on an iface which is part of multipath setup.
# If the iface is disconnected after discovery anaconda doesn't
# write dracut ifname argument for the disconnected iface path
# (in Network.dracutSetupArgs).
# Dracut needs the explicit ifname= because biosdevname
# fails to rename the iface (because of BFS booting from it).
for nic, _dcb, _auto_vlan in fcoe().nics:
try:
hwaddr = nm_device_hwaddress(nic)
except ValueError:
continue
self.boot_args.add("ifname=%s:%s" % (nic, hwaddr.lower()))
# Add iscsi_firmware to trigger dracut running iscsistart
# See rhbz#1099603 and rhbz#1185792
if len(glob("/sys/firmware/iscsi_boot*")) > 0:
self.boot_args.add("iscsi_firmware")
#
# preservation of some of our boot args
# FIXME: this is stupid.
#
for opt in self.global_preserve_args + self.preserve_args:
if opt not in flags.cmdline:
continue
arg = flags.cmdline.get(opt)
new_arg = opt
if arg:
new_arg += "=%s" % arg
self.boot_args.add(new_arg)
#
# configuration
#
@property
def boot_prefix(self):
""" Prefix, if any, to paths in /boot. """
if self.stage2_device.format.mountpoint == "/":
prefix = "/boot"
else:
prefix = ""
return prefix
def _set_console(self):
""" Set console options based on boot arguments. """
console = flags.cmdline.get("console", "")
console = os.path.basename(console)
self.console, _x, self.console_options = console.partition(",")
def write_config_console(self, config):
"""Write console-related configuration lines."""
pass
def write_config_password(self, config):
"""Write password-related configuration lines."""
pass
def write_config_header(self, config):
"""Write global configuration lines."""
self.write_config_console(config)
self.write_config_password(config)
def write_config_images(self, config):
"""Write image configuration entries."""
raise NotImplementedError()
def write_config_post(self):
try:
iutil.eintr_retry_call(os.chmod, iutil.getSysroot() + self.config_file, self.config_file_mode)
except OSError as e:
log.error("failed to set config file permissions: %s", e)
def write_config(self):
""" Write the bootloader configuration. """
if not self.config_file:
raise BootLoaderError("no config file defined for this boot loader")
config_path = os.path.normpath(iutil.getSysroot() + self.config_file)
if os.access(config_path, os.R_OK):
os.rename(config_path, config_path + ".anacbak")
config = open(config_path, "w")
self.write_config_header(config)
self.write_config_images(config)
config.close()
self.write_config_post()
@property
def trusted_boot(self):
return self._trusted_boot
@trusted_boot.setter
def trusted_boot(self, trusted_boot):
self._trusted_boot = trusted_boot
#
# installation
#
def write(self):
""" Write the bootloader configuration and install the bootloader. """
if self.skip_bootloader:
return
if self.update_only:
self.update()
return
self.write_config()
sync()
self.stage2_device.format.sync(root=iutil.getTargetPhysicalRoot())
self.install()
def install(self, args=None):
raise NotImplementedError()
def update(self):
""" Update an existing bootloader configuration. """
pass
class GRUB(BootLoader):
name = "GRUB"
_config_dir = "grub"
_config_file = "grub.conf"
_device_map_file = "device.map"
can_dual_boot = True
can_update = True
stage2_is_valid_stage1 = True
stage2_bootable = True
stage2_must_be_primary = False
# list of strings representing options for boot device types
stage2_device_types = ["partition", "mdarray"]
stage2_raid_levels = [raid.RAID1]
stage2_raid_member_types = ["partition"]
stage2_raid_metadata = ["0", "0.90", "1.0"]