OK, I retested with 0.7.5-1ubuntu3 and it's almost there but zfs- mount.service still runs before the zfs kernel module is loaded:
$ systemctl --failed UNIT LOAD ACTIVE SUB DESCRIPTION ● zfs-mount.service loaded failed failed Mount ZFS filesystems $ sudo journalctl -u zfs-mount.service -- Logs begin at Fri 2018-03-02 19:08:55 UTC, end at Fri 2018-03-02 19:31:42 UTC. -- Mar 02 19:09:00 ubuntu systemd[1]: Starting Mount ZFS filesystems... Mar 02 19:09:00 ubuntu zfs[557]: The ZFS modules are not loaded. Mar 02 19:09:00 ubuntu zfs[557]: Try running '/sbin/modprobe zfs' as root to load them. Mar 02 19:09:00 ubuntu systemd[1]: zfs-mount.service: Main process exited, code=exited, status=1/FAILURE Mar 02 19:09:00 ubuntu systemd[1]: zfs-mount.service: Failed with result 'exit-code'. Mar 02 19:09:00 ubuntu systemd[1]: Failed to start Mount ZFS filesystems. But, by the time the system is fully up, something else has loaded the zfs kernel module along the way: $ lsmod|grep zfs zfs 3407872 3 I do see that zfs-load-module.service has "WantedBy=zfs-mount.service", but maybe zfs-mount.service needs "After=zfs-load-module.service" to insure the dependency order? Looking at the dependency tree, zfs- mount.service and zfs-import.target happen in parallel with the start of zfs-load-module.service resulting in a race condition. -- 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