I upgraded to jammy and now I have problems.
I have two 500G SSDs (sda/sdb) in RAID1 mirror in ASUS BIOS ("promise" RAID, I suspect) and sdc is a physical LSI RAID controller. It's a UEFI system, so there were two partitions on the mapper. Upon initial reboot after upgrade, I got "unable to mount root fs" kernel panic. When I rebooted and selected a previous kernel, I got "mdadm no arrays found" error and dropped to initramfs. I don't know why mdadm is being called, as I stated above was using the ASUS BIOS RAID.
I used the boot repair tool, and that also downloaded the mdadm utilities. I've uploaded the repair tool results here:
https://paste.ubuntu.com/p/yTb4gZcWc3
Any help getting back to a working system would be appreciated!