def main():
"""
DistMigration load new kernel for kexec reboot
Loads the new kernel/initrd after migration for system reboot
"""
root_path = Defaults.get_system_root_path()
target_kernel = os.sep.join([root_path, Defaults.get_target_kernel()])
target_initrd = os.sep.join([root_path, Defaults.get_target_initrd()])
kexec_boot_data = '/var/tmp/kexec'
Path.create(kexec_boot_data)
shutil.copy(target_initrd, kexec_boot_data)
try:
log.info('Running kernel load service')
log.info('Loading the target kernel')
Command.run([
'kexec', '--load', target_kernel, '--initrd',
os.sep.join([kexec_boot_data,
os.path.basename(target_initrd)]), '--command-line',
_get_cmdline(os.path.basename(target_kernel))
])
except Exception as issue:
log.error('Kernel load service raised exception: {0}', format(issue))
raise DistMigrationKernelRebootException(
'Failed to load kernel/initrd into memory: {0}'.format(issue))
def main():
"""
DistMigration load new kernel for kexec reboot
Loads the new kernel/initrd after migration for system reboot
"""
Logger.setup()
log = logging.getLogger(Defaults.get_migration_log_name())
if not MigrationConfig().is_soft_reboot_requested():
log.info('skipping kexec --load (hard reboot requested)')
return
root_path = Defaults.get_system_root_path()
target_kernel = os.sep.join([root_path, Defaults.get_target_kernel()])
target_initrd = os.sep.join([root_path, Defaults.get_target_initrd()])
kexec_boot_data = '/var/tmp/kexec'
Path.create(kexec_boot_data)
shutil.copy(target_initrd, kexec_boot_data)
try:
log.info('Running kernel load service')
log.info('Loading the target kernel')
Command.run([
'kexec', '--load', target_kernel, '--initrd',
os.sep.join([kexec_boot_data,
os.path.basename(target_initrd)]),
'--kexec-file-syscall', '--command-line',
_get_cmdline(os.path.basename(target_kernel))
])
except Exception as issue:
log.error('Kernel load service raised exception: {0}'.format(issue))
raise DistMigrationKernelRebootException(
'Failed to load kernel/initrd into memory: {0}'.format(issue))
def test_get_cmd_line_linuxefi(self, mock_path_exists, mock_logger_setup):
mock_path_exists.return_value = True
with open('../data/fake_grub_linuxefi.cfg') as fake_grub:
fake_grub_data = fake_grub.read()
with patch('builtins.open', create=True) as mock_open:
mock_open.return_value = MagicMock(spec=io.IOBase)
file_handle = mock_open.return_value.__enter__.return_value
file_handle.read.return_value = fake_grub_data
grub_cmd_content = \
'root=UUID=ec7aaf92-30ea-4c07-991a-4700177ce1b8 ' + \
'splash root=UUID=ec7aaf92-30ea-4c07-991a-4700177ce1b8 rw'
result = _get_cmdline(
os.path.basename(Defaults.get_target_kernel()))
mock_open.assert_called_once_with(
'/system-root/boot/grub2/grub.cfg')
assert result == grub_cmd_content