Fails to import ZFS rpool during boot

[Sebastian Heiden]

Fresh install using 20220202 Daily ISO with ZFS + Encryption selected from the installer

The system ends up in busybox after entering the unlock key.

Here is a part of the logs captured from the screen, the complete log can be found as an attachement:

find: /dev/zvol/: No such file or directory
/init: line 971: dirname: not found
BusyBox v1.30.1 (Ubuntu 1:1.30.1-7ubuntu2) multi-call binary.

Usage: basename FILE [SUFFIX]
Strip directory path and SUFFIX from FILE
Please unlock disk keystore-:_

Key load error: Failed to open key material file: No such file or directory

Command: mount -o zfsutil -t zfs rpool/ROOT/ubuntu_ui69ph /root// Message: filesystem 'rpool/ROOT/ubuntu_ui69ph' can not be mounted: Permission denied
filesystem 'rpool/ROOT/ubuntu_ui69ph' can not be mounted: Permission denied
mount: mounting rpool/ROOT/ubuntu_u169ph on /root// failed: Permission denied Error: 1

Failed to mount rpool/ROOT/ubuntu ui69ph on /root//.
Manually mount the filesystem and exit.

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1960460