def create_initrd(self,
mbrid: Optional[SystemIdentifier] = None,
basename: Optional[str] = None,
install_initrd: bool = False) -> None:
"""
Create initrd from prepared boot system tree and compress the result
:param SystemIdentifier mbrid: instance of ImageIdentifier
:param str basename: base initrd file name
:param bool install_initrd: installation media initrd
"""
if self.is_prepared():
log.info('Creating initrd cpio archive')
# we can't simply exclude boot when building the archive
# because the file boot/mbrid must be preserved. Because of
# that we create a copy of the boot directory and remove
# everything in boot/ except for boot/mbrid. The original
# boot directory should not be changed because we rely
# on other data in boot/ e.g the kernel to be available
# for the entire image building process
if basename:
kiwi_initrd_basename = basename
else:
kiwi_initrd_basename = self.initrd_base_name
temp_boot_root = Temporary(prefix='kiwi_boot_root_copy.').new_dir()
temp_boot_root_directory = temp_boot_root.name
os.chmod(temp_boot_root_directory, 0o755)
data = DataSync(self.boot_root_directory + '/',
temp_boot_root_directory)
data.sync_data(options=['-a'])
boot_directory = temp_boot_root_directory + '/boot'
Path.wipe(boot_directory)
if mbrid:
log.info('--> Importing mbrid: %s', mbrid.get_id())
Path.create(boot_directory)
image_identifier = boot_directory + '/mbrid'
mbrid.write(image_identifier)
cpio = ArchiveCpio(
os.sep.join([self.target_dir, kiwi_initrd_basename]))
# the following is a list of directories which were needed
# during the process of creating an image but not when the
# image is actually booting with this initrd
exclude_from_archive = [
'/' + Defaults.get_shared_cache_location(), '/image',
'/usr/lib/grub*'
]
# the following is a list of directories to exclude which
# are not needed inside of the initrd
exclude_from_archive += [
'/usr/share/doc', '/usr/share/man', '/home', '/media', '/srv'
]
cpio.create(source_dir=temp_boot_root_directory,
exclude=exclude_from_archive)
log.info('--> xz compressing archive')
compress = Compress(
os.sep.join([self.target_dir, kiwi_initrd_basename]))
compress.xz(['--check=crc32', '--lzma2=dict=1MiB', '--threads=0'])
self.initrd_filename = compress.compressed_filename
class TestArchiveCpio:
def setup(self):
self.archive = ArchiveCpio('foo.cpio')
def setup_method(self, cls):
self.setup()
@patch('kiwi.archive.cpio.Command.run')
def test_create(self, mock_command):
self.archive.create('source-dir', ['/boot', '/var/cache'])
find_command = \
'find . -path ./boot -prune -or -path ./var/cache -prune -o -print'
cpio_command = 'cpio --quiet -o -H newc'
mock_command.assert_called_once_with([
'bash', '-c', ''.join([
'cd source-dir && ', find_command, ' | ', cpio_command,
' > foo.cpio'
])
])
@patch('kiwi.archive.cpio.Command.run')
def test_extract(self, mock_command):
self.archive.extract('dest-dir')
bash_command = \
'cd dest-dir && cat foo.cpio | cpio -i --make-directories'
mock_command.assert_called_once_with(['bash', '-c', bash_command])
class TestArchiveCpio(object):
def setup(self):
self.archive = ArchiveCpio('foo.cpio')
@patch('kiwi.archive.cpio.Command.run')
def test_create(self, mock_command):
self.archive.create('source-dir', ['/boot', '/var/cache'])
find_command = \
'find . -path ./boot -prune -or -path ./var/cache -prune -o -print'
cpio_command = 'cpio --quiet -o -H newc'
mock_command.assert_called_once_with(
[
'bash', '-c', 'cd source-dir && ' +
find_command + ' | ' + cpio_command + ' > foo.cpio'
]
)
@patch('kiwi.archive.cpio.Command.run')
def test_extract(self, mock_command):
self.archive.extract('dest-dir')
bash_command = \
'cd dest-dir && cat foo.cpio | cpio -i --make-directories'
mock_command.assert_called_once_with(
['bash', '-c', bash_command]
)
def create_initrd(self, mbrid=None):
"""
Create initrd from prepared boot system tree and compress the result
:param object mbrid: instance of ImageIdentifier
"""
if self.is_prepared():
log.info('Creating initrd cpio archive')
# we can't simply exclude boot when building the archive
# because the file boot/mbrid must be preserved. Because of
# that we create a copy of the boot directory and remove
# everything in boot/ except for boot/mbrid. The original
# boot directory should not be changed because we rely
# on other data in boot/ e.g the kernel to be available
# for the entire image building process
temp_boot_root_directory = mkdtemp(prefix='kiwi_boot_root_copy.')
self.temp_directories.append(temp_boot_root_directory)
data = DataSync(self.boot_root_directory + '/',
temp_boot_root_directory)
data.sync_data(options=['-z', '-a'])
boot_directory = temp_boot_root_directory + '/boot'
Path.wipe(boot_directory)
if mbrid:
log.info('--> Importing mbrid: %s', mbrid.get_id())
Path.create(boot_directory)
image_identifier = boot_directory + '/mbrid'
mbrid.write(image_identifier)
cpio = ArchiveCpio(
os.sep.join([self.target_dir, self.initrd_base_name]))
# the following is a list of directories which were needed
# during the process of creating an image but not when the
# image is actually booting with this initrd
exclude_from_archive = [
'/' + Defaults.get_shared_cache_location(), '/image',
'/usr/lib/grub*'
]
# the following is a list of directories to exclude which
# are not needed inside of the initrd
exclude_from_archive += [
'/usr/share/doc', '/usr/share/man', '/home', '/media', '/srv'
]
cpio.create(source_dir=temp_boot_root_directory,
exclude=exclude_from_archive)
log.info('--> xz compressing archive')
compress = Compress(
os.sep.join([self.target_dir, self.initrd_base_name]))
compress.xz()
self.initrd_filename = compress.compressed_filename
def setup(self):
self.archive = ArchiveCpio('foo.cpio')
def setup(self):
self.archive = ArchiveCpio('foo.cpio')
