def get_grub_path(root_path, filename, raise_on_error=True):
"""
Provides grub path to given search file
Depending on the distribution grub could be installed below
a grub2 or grub directory. grub could also reside in /usr/lib
as well as in /usr/share. Therefore this information needs
to be dynamically looked up
:param string root_path: root path to start the lookup from
:param string filename: filename to search
:param bool raise_on_error: raise on not found, defaults to True
The method returns the path to the given grub search file.
By default it raises a KiwiBootLoaderGrubDataError exception
if the file could not be found in any of the search locations.
If raise_on_error is set to False and no file could be found
the function returns None
:return: filepath
:rtype: str
"""
install_dirs = ['usr/share', 'usr/lib']
lookup_list = []
for grub_name in ['grub2', 'grub']:
for install_dir in install_dirs:
grub_path = os.path.join(root_path, install_dir, grub_name,
filename)
if os.path.exists(grub_path):
return grub_path
lookup_list.append(grub_path)
if raise_on_error:
raise KiwiBootLoaderGrubDataError(
'grub path {0} not found in {1}'.format(filename, lookup_list))
def _find_grub_data(self, lookup_path):
grub_path = Defaults.get_grub_path(lookup_path)
if grub_path:
return grub_path
raise KiwiBootLoaderGrubDataError('No grub2 installation found in %s' %
lookup_path)
def install(self):
"""
Install bootloader on disk device
"""
log.info('Installing grub2 on disk %s', self.device)
if self.target_removable:
self.install_arguments.append('--removable')
if self.arch == 'x86_64' or self.arch == 'i686' or self.arch == 'i586':
self.target = 'i386-pc'
self.install_device = self.device
self.modules = ' '.join(
Defaults.get_grub_bios_modules(multiboot=True))
self.install_arguments.append('--skip-fs-probe')
elif self.arch.startswith('ppc64'):
if not self.custom_args or 'prep_device' not in self.custom_args:
raise KiwiBootLoaderGrubInstallError(
'prep device name required for grub2 installation on ppc')
self.target = 'powerpc-ieee1275'
self.install_device = self.custom_args['prep_device']
self.modules = ' '.join(Defaults.get_grub_ofw_modules())
self.install_arguments.append('--skip-fs-probe')
self.install_arguments.append('--no-nvram')
else:
raise KiwiBootLoaderGrubPlatformError(
'host architecture %s not supported for grub2 installation' %
self.arch)
self.root_mount = MountManager(device=self.custom_args['root_device'])
self.boot_mount = MountManager(device=self.custom_args['boot_device'],
mountpoint=self.root_mount.mountpoint +
'/boot')
self.root_mount.mount()
if not self.root_mount.device == self.boot_mount.device:
self.boot_mount.mount()
if self.volumes:
for volume_path in Path.sort_by_hierarchy(
sorted(self.volumes.keys())):
volume_mount = MountManager(
device=self.volumes[volume_path]['volume_device'],
mountpoint=self.root_mount.mountpoint + '/' + volume_path)
self.volumes_mount.append(volume_mount)
volume_mount.mount(
options=[self.volumes[volume_path]['volume_options']])
self.device_mount = MountManager(
device='/dev', mountpoint=self.root_mount.mountpoint + '/dev')
self.proc_mount = MountManager(device='/proc',
mountpoint=self.root_mount.mountpoint +
'/proc')
self.sysfs_mount = MountManager(device='/sys',
mountpoint=self.root_mount.mountpoint +
'/sys')
self.device_mount.bind_mount()
self.proc_mount.bind_mount()
self.sysfs_mount.bind_mount()
# check if a grub installation could be found in the image system
grub_directory = Defaults.get_grub_path(self.root_mount.mountpoint +
'/usr/lib')
if not grub_directory:
raise KiwiBootLoaderGrubDataError(
'No grub2 installation found in %s' %
self.root_mount.mountpoint)
grub_directory = grub_directory.replace(self.root_mount.mountpoint, '')
module_directory = grub_directory + '/' + self.target
boot_directory = '/boot'
# wipe existing grubenv to allow the grub installer to create a new one
grubenv_glob = os.sep.join(
[self.root_mount.mountpoint, 'boot', '*', 'grubenv'])
for grubenv in glob.glob(grubenv_glob):
Path.wipe(grubenv)
# install grub2 boot code
Command.run([
'chroot', self.root_mount.mountpoint,
self._get_grub2_install_tool_name(self.root_mount.mountpoint)
] + self.install_arguments + [
'--directory', module_directory, '--boot-directory',
boot_directory, '--target', self.target, '--modules', self.modules,
self.install_device
])
if self.firmware and self.firmware.efi_mode() == 'uefi':
shim_install = self._get_shim_install_tool_name(
self.root_mount.mountpoint)
# if shim-install does _not_ exist the fallback mechanism
# has applied at the bootloader/config level and we expect
# no further tool calls to be required
if shim_install:
self.efi_mount = MountManager(
device=self.custom_args['efi_device'],
mountpoint=self.root_mount.mountpoint + '/boot/efi')
self.efi_mount.mount()
# Before we call shim-install, the grub installer binary is
# replaced by a noop. Actually there is no reason for
# shim-install to call the grub installer because it should
# only setup the system for EFI secure boot which does not
# require any bootloader code in the master boot record.
# In addition kiwi has called the grub installer right
# before
self._disable_grub2_install(self.root_mount.mountpoint)
Command.run([
'chroot', self.root_mount.mountpoint, 'shim-install',
'--removable', self.install_device
])
# restore the grub installer noop
self._enable_grub2_install(self.root_mount.mountpoint)
def install(self):
"""
Install bootloader on disk device
"""
log.info('Installing grub2 on disk %s', self.device)
if self.target_removable:
self.install_arguments.append('--removable')
if Defaults.is_x86_arch(self.arch):
self.target = 'i386-pc'
self.install_device = self.device
self.modules = ' '.join(
Defaults.get_grub_bios_modules(multiboot=True))
self.install_arguments.append('--skip-fs-probe')
elif self.arch.startswith('ppc64'):
if not self.custom_args or 'prep_device' not in self.custom_args:
raise KiwiBootLoaderGrubInstallError(
'prep device name required for grub2 installation on ppc')
self.target = 'powerpc-ieee1275'
self.install_device = self.custom_args['prep_device']
self.modules = ' '.join(Defaults.get_grub_ofw_modules())
self.install_arguments.append('--skip-fs-probe')
self.install_arguments.append('--no-nvram')
elif self.arch.startswith('s390'):
self.target = 's390x-emu'
self.install_device = self.device
self.modules = ' '.join(Defaults.get_grub_s390_modules())
self.install_arguments.append('--skip-fs-probe')
self.install_arguments.append('--no-nvram')
else:
raise KiwiBootLoaderGrubPlatformError(
'host architecture %s not supported for grub2 installation' %
self.arch)
self._mount_device_and_volumes()
# check if a grub installation could be found in the image system
module_directory = Defaults.get_grub_path(self.root_mount.mountpoint,
self.target,
raise_on_error=False)
if not module_directory:
raise KiwiBootLoaderGrubDataError(
'No grub2 installation found in {0} for target {1}'.format(
self.root_mount.mountpoint, self.target))
module_directory = module_directory.replace(self.root_mount.mountpoint,
'')
boot_directory = '/boot'
# wipe existing grubenv to allow the grub installer to create a new one
grubenv_glob = os.sep.join(
[self.root_mount.mountpoint, 'boot', '*', 'grubenv'])
for grubenv in glob.glob(grubenv_glob):
Path.wipe(grubenv)
# install grub2 boot code
if self.firmware.get_partition_table_type() == 'dasd':
# On s390 and in CDL mode (4k DASD) the call of grub2-install
# does not work because grub2-install is not able to identify
# a 4k fdasd partitioned device as a grub supported device
# and fails. As grub2-install is only used to invoke
# grub2-zipl-setup and has no other job to do we can
# circumvent this problem by directly calling grub2-zipl-setup
# instead.
Command.run([
'chroot', self.root_mount.mountpoint, 'grub2-zipl-setup',
'--keep'
])
zipl_config_file = ''.join(
[self.root_mount.mountpoint, '/boot/zipl/config'])
zipl2grub_config_file_orig = ''.join([
self.root_mount.mountpoint,
'/etc/default/zipl2grub.conf.in.orig'
])
if os.path.exists(zipl2grub_config_file_orig):
Command.run([
'mv', zipl2grub_config_file_orig,
zipl2grub_config_file_orig.replace('.orig', '')
])
if os.path.exists(zipl_config_file):
Command.run(
['mv', zipl_config_file, zipl_config_file + '.kiwi'])
else:
Command.run([
'chroot', self.root_mount.mountpoint,
self._get_grub2_install_tool_name(self.root_mount.mountpoint)
] + self.install_arguments + [
'--directory', module_directory, '--boot-directory',
boot_directory, '--target', self.target, '--modules',
self.modules, self.install_device
])
def install(self): # noqa: C901
"""
Install bootloader on disk device
"""
log.info('Installing grub2 on disk %s', self.device)
if self.target_removable:
self.install_arguments.append('--removable')
if Defaults.is_x86_arch(self.arch):
self.target = 'i386-pc'
self.install_device = self.device
self.modules = ' '.join(
Defaults.get_grub_bios_modules(multiboot=True)
)
self.install_arguments.append('--skip-fs-probe')
elif self.arch.startswith('ppc64'):
if not self.custom_args or 'prep_device' not in self.custom_args:
raise KiwiBootLoaderGrubInstallError(
'prep device name required for grub2 installation on ppc'
)
self.target = 'powerpc-ieee1275'
self.install_device = self.custom_args['prep_device']
self.modules = ' '.join(Defaults.get_grub_ofw_modules())
self.install_arguments.append('--skip-fs-probe')
self.install_arguments.append('--no-nvram')
elif self.arch.startswith('s390'):
self.target = 's390x-emu'
self.install_device = self.device
self.modules = ' '.join(Defaults.get_grub_s390_modules())
self.install_arguments.append('--skip-fs-probe')
self.install_arguments.append('--no-nvram')
else:
raise KiwiBootLoaderGrubPlatformError(
'host architecture %s not supported for grub2 installation' %
self.arch
)
self.root_mount = MountManager(
device=self.custom_args['root_device']
)
if 's390' in self.arch:
self.boot_mount = MountManager(
device=self.custom_args['boot_device'],
mountpoint=self.root_mount.mountpoint + '/boot/zipl'
)
else:
self.boot_mount = MountManager(
device=self.custom_args['boot_device'],
mountpoint=self.root_mount.mountpoint + '/boot'
)
if self.custom_args.get('efi_device'):
self.efi_mount = MountManager(
device=self.custom_args['efi_device'],
mountpoint=self.root_mount.mountpoint + '/boot/efi'
)
self.root_mount.mount()
if not self.root_mount.device == self.boot_mount.device:
self.boot_mount.mount()
if self.efi_mount:
self.efi_mount.mount()
if self.volumes:
for volume_path in Path.sort_by_hierarchy(
sorted(self.volumes.keys())
):
volume_mount = MountManager(
device=self.volumes[volume_path]['volume_device'],
mountpoint=self.root_mount.mountpoint + '/' + volume_path
)
self.volumes_mount.append(volume_mount)
volume_mount.mount(
options=[self.volumes[volume_path]['volume_options']]
)
self.device_mount = MountManager(
device='/dev',
mountpoint=self.root_mount.mountpoint + '/dev'
)
self.proc_mount = MountManager(
device='/proc',
mountpoint=self.root_mount.mountpoint + '/proc'
)
self.sysfs_mount = MountManager(
device='/sys',
mountpoint=self.root_mount.mountpoint + '/sys'
)
self.device_mount.bind_mount()
self.proc_mount.bind_mount()
self.sysfs_mount.bind_mount()
# check if a grub installation could be found in the image system
module_directory = Defaults.get_grub_path(
self.root_mount.mountpoint, self.target, raise_on_error=False
)
if not module_directory:
raise KiwiBootLoaderGrubDataError(
'No grub2 installation found in {0} for target {1}'.format(
self.root_mount.mountpoint, self.target
)
)
module_directory = module_directory.replace(
self.root_mount.mountpoint, ''
)
boot_directory = '/boot'
# wipe existing grubenv to allow the grub installer to create a new one
grubenv_glob = os.sep.join(
[self.root_mount.mountpoint, 'boot', '*', 'grubenv']
)
for grubenv in glob.glob(grubenv_glob):
Path.wipe(grubenv)
# install grub2 boot code
if self.firmware.get_partition_table_type() == 'dasd':
# On s390 and in CDL mode (4k DASD) the call of grub2-install
# does not work because grub2-install is not able to identify
# a 4k fdasd partitioned device as a grub supported device
# and fails. As grub2-install is only used to invoke
# grub2-zipl-setup and has no other job to do we can
# circumvent this problem by directly calling grub2-zipl-setup
# instead.
Command.run(
[
'chroot', self.root_mount.mountpoint,
'grub2-zipl-setup', '--keep'
]
)
zipl_config_file = ''.join(
[
self.root_mount.mountpoint, '/boot/zipl/config'
]
)
zipl2grub_config_file_orig = ''.join(
[
self.root_mount.mountpoint,
'/etc/default/zipl2grub.conf.in.orig'
]
)
if os.path.exists(zipl2grub_config_file_orig):
Command.run(
[
'mv', zipl2grub_config_file_orig,
zipl2grub_config_file_orig.replace('.orig', '')
]
)
if os.path.exists(zipl_config_file):
Command.run(
['mv', zipl_config_file, zipl_config_file + '.kiwi']
)
else:
Command.run(
[
'chroot', self.root_mount.mountpoint,
self._get_grub2_install_tool_name(
self.root_mount.mountpoint
)
] + self.install_arguments + [
'--directory', module_directory,
'--boot-directory', boot_directory,
'--target', self.target,
'--modules', self.modules,
self.install_device
]
)
if self.firmware and self.firmware.efi_mode() == 'uefi':
shim_install = self._get_shim_install_tool_name(
self.root_mount.mountpoint
)
# if shim-install does _not_ exist the fallback mechanism
# has applied at the bootloader/config level and we expect
# no further tool calls to be required
if shim_install:
# Before we call shim-install, the grub installer binary is
# replaced by a noop. Actually there is no reason for
# shim-install to call the grub installer because it should
# only setup the system for EFI secure boot which does not
# require any bootloader code in the master boot record.
# In addition kiwi has called the grub installer right
# before
self._disable_grub2_install(self.root_mount.mountpoint)
Command.run(
[
'chroot', self.root_mount.mountpoint,
'shim-install', '--removable',
self.install_device
]
)
# restore the grub installer noop
self._enable_grub2_install(self.root_mount.mountpoint)