I've been putting off my OMV 3.x -> 4.x upgrade for a while, but decided to give it a shot a few hours ago. I uninstalled all the 3.x plugins that had no 4.x counterpart and then rolled through with omv-update.
All seemed to go pretty well from a noobs point of view. However, I found that the SnapRaid plugin was no longer installed, so I went ahead an installed it. My previous config for SnapRaid was 8 x 4TB drives (7 Data, 1 Parity) which were presented as a single filesystem using UnionFS. I also have 2 x 500GB drives I use for VirtualBox and a single 30GB SSD for the OMV install.
Looking at disks everything seems to be there;
When I get to filesystem however all but two of my SnapRaid devices are showing offline with the last two disks seemingly having lost their SnapRaid labels. My Union FS is showing online however I it appears I can access it via Samba, though haven't used it for fear of corruption;
If I look at the UnionFS config, it is only showing 1 disk;
When I go into the SnapRaid gui there are no drives shown, and when I click add drive I get this;
I'm quite a novice at this, so would really appreciate it if anyone could give me some pointers what to do next to get my config back online properly.