I found the xenial issue I was thinking of [1] but I'd be surprised if that particular case regressed (it had to do with use of /etc/mtab). For completeness, I'll mention it here anyway.
[1] https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1607920 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1741081 Title: zfs-import-cache.service fails on startup To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1741081/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
