def test_get_volume_uuid(self, mock_util):
path = "/dev/sda1"
expected_call = ["blkid", "-o", "export", path]
mock_util.subp.return_value = ("""
UUID=182e8e23-5322-46c9-a1b8-cf2c6a88f9f7
""", "")
uuid = block.get_volume_uuid(path)
mock_util.subp.assert_called_with(expected_call, capture=True)
self.assertEqual(uuid, "182e8e23-5322-46c9-a1b8-cf2c6a88f9f7")
def setup_zipl(cfg, target):
if platform.machine() != 's390x':
return
# assuming that below gives the "/" rootfs
target_dev = block.get_devices_for_mp(target)[0]
root_arg = None
# not mapped rootfs, use UUID
if 'mapper' in target_dev:
root_arg = target_dev
else:
uuid = block.get_volume_uuid(target_dev)
if uuid:
root_arg = "UUID=%s" % uuid
if not root_arg:
msg = "Failed to identify root= for %s at %s." % (target, target_dev)
LOG.warn(msg)
raise ValueError(msg)
zipl_conf = """
# This has been modified by the MAAS curtin installer
[defaultboot]
default=ubuntu
[ubuntu]
target = /boot
image = /boot/vmlinuz
ramdisk = /boot/initrd.img
parameters = root=%s
""" % root_arg
futil.write_files(
files={"zipl_conf": {
"path": "/etc/zipl.conf",
"content": zipl_conf
}},
base_dir=target)