I'm using ext4 with external journal on Linux 4.9. For being explicit I would like to set the journal_path=/dev/... option in /etc/fstab. However when I do so, then some OS scripts fail. This is because `systemd-remount-fs` calls `mount / -o remount`, which fails with EXT4-fs (md126): Cannot specify journal on remount (How) is this supposed to work? Can `journal_path` be given in fstab? Also, should it really fail with `Cannot specify journal on remount` even when the journal given is the one that is already being used? Thanks for your insights!
