You have this line in /etc/fstab:
/dev/mapper/grok-root / ext4 ro,relatime,barrier=1,data=ordered 0 0
The last field probably ought to be 1, not 0.
Jaunty mostly ignored /forcefsck with a zero passno field, but the root filesystem was a special case; if you used /forcefsck, then it would be checked regardless of passno. The attached branch changes mountall to match this behaviour.
You have this line in /etc/fstab:
/dev/ mapper/ grok-root / ext4 ro,relatime, barrier= 1,data= ordered 0 0
The last field probably ought to be 1, not 0.
Jaunty mostly ignored /forcefsck with a zero passno field, but the root filesystem was a special case; if you used /forcefsck, then it would be checked regardless of passno. The attached branch changes mountall to match this behaviour.