Comment 0 for bug 1760880

I had vdb partioned with zfsroot, but not mounted (i.e., it's not under "file systems").

Tried a deploy with vda-part1 formatted with zfsroot and mounted at /, but that failed:
"""
curtin: Installation started. (18.1-1-g45564eef-0ubuntu1)

third party drivers not installed or necessary.

zfsroot found in two entries in storage config: [{'fstype': 'zfsroot', 'id': 'vda-part1_format', 'label': '', 'type': 'format', 'uuid': 'd85b2613-b1dc-482a-bc78-385f5ae4224e', 'volume': 'vda-part1'}, {'fstype': 'zfsroot', 'id': 'vdb_format', 'label': '', 'type': 'format', 'uuid': '9c66e308-86ed-4a73-a72d-26de2c55f2fe', 'volume': 'vdb'}]

curtin: Installation failed with exception: Unexpected error while running command.

Command: ['curtin', 'block-meta', 'custom']

Exit code: 3

Reason: -

Stdout: zfsroot found in two entries in storage config: [{'fstype': 'zfsroot', 'id': 'vda-part1_format', 'label': '', 'type': 'format', 'uuid': 'd85b2613-b1dc-482a-bc78-385f5ae4224e', 'volume': 'vda-part1'}, {'fstype': 'zfsroot', 'id': 'vdb_format', 'label': '', 'type': 'format', 'uuid': '9c66e308-86ed-4a73-a72d-26de2c55f2fe', 'volume': 'vdb'}]

Stderr: ''
"""

Looks like it still "saw" zfs on vdb and got confused.