I've confirmed it's the absence of explicit zpool in the configuration that prevented the `zpool export -a` call from running.
https://github.com/canonical/subiquity/pull/2077 should address the issue. ** Changed in: subiquity (Ubuntu) Status: Fix Committed => In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2073772 Title: rpool fails to import on first boot after automated install (failed PRE_SHUTDOWN?) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/subiquity/+bug/2073772/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs