One of our Supermicro servers won't boot from the virtual drive on a MegaRAID SAS 9361-8i after a power outage.
It can still boot from a USB stick without trouble, all hard drives and file systems seem to be intact. The correct drive is not shown as an option to select for booting in BIOS. I have tried resetting both BIOS and the RAID controller BIOS. In the RAID controller BIOS the "Enable controller BIOS" box found under Ctrl Mgmt is checked.
Messages that might be helpful:
During a boot attempt, the following is displayed: "1 virtual drives found on the host adapter, 0 virtual drives handled by bios"
In BIOS Event logs, there is an error with the code "EFI 03051002" and the description "DXE BS driver Unrecognized".
I also briefly tried to manually select the boot location in the UEFI shell but was quickly thwarted by not being able to read the drive here either, i.e. "Map: no mapping found."
Any help in diagnosing or fixing the error, or determining what needs to be replaced would be highly appreciated!
BIOS - "version 2.18.1264. Copyright (c) 2018 American Megatrends, Inc."
RAID controller - "AVAGO MegaRAID SAS 9361-8i"
RAID controller BIOS version - "6.36.00.3_4.19.08.00_-x-6180203"