I'm not familiar with Linux. I'm using a supermicro box and set up OMV with a single 3.5 HD with the OS booting from a USB stick. That worked fine and I was able to create a filesystem/shares and use the OMV system but when I added the second drive, I get these errors while booting. Please see picture for reference.
The OS drive is sdb (thumb stick) and the first drive that was working fine until I added the 2nd is sda - if that helps.
Can someone please provide me some troubleshooting help? It would be much appreciated.