Seems the Gluster Node that booted from 4.5 into emergency mode was due to not finding the
mounts for gluster_bricks data and engine, its as if it cant see them any more.
Once i removed the mounts from /etc/fstab it lets me in, I could boot up to the node past
emergency mode but odd issue.
One of the errors:
dependency failed for /gluster_bricks/data
Subject: Unit gluster_bricks-data.mount has failed
This is node 3 of the Gluster, Arbiter.
[root@ovirt-3 ~]# mount -a
mount: /gluster_bricks/engine: can't find UUID=45349e37-7a97-4a64-81eb-5fac3fec6477.
mount: /gluster_bricks/data: can't find UUID=c0fa1111-0db2-4e08-bb79-be677530aeaa.