I tested installing the final Ubuntu 22.04 image in qemu and did not encounter a crash as you describe. I did notice the following suspicious message in your log file:
Feb 12 17:56:01 ubuntu ubiquity: The device contains 'zfs_member' signature and it may remain on the device. It is recommended to wipe the device with wipefs(8) or sfdisk --wipe, in order to avoid possible collisions. ** Changed in: ubiquity (Ubuntu) Status: Confirmed => New ** Summary changed: - zsys-setup fails when ZFS-encryption chosen + zsys-setup fails when there is an existing zfs_member signature -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1960717 Title: zsys-setup fails when there is an existing zfs_member signature To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1960717/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs