So I've got a Debian 9 machine with 5 hard drives in it. I tried moving these drives to a new machine and hoping they would boot. When I did this, I got "normal.mod not found" and it kicked me to grub rescue.
After messing around with every version of grub repair, I didn't make any progress. So I moved the drives back into the original machine thinking that it'd be easier to just get that working again?
Well now it's getting "filesystem unknown" and moving me into grub rescue. I again tried various grub rescues, and boot-repair and most of these fail because they aren't booted in UEFI mode, but they won't boot in UEFI mode, usually because they also say "filesystem unknown".
So just now I booted into a live Ubuntu and installed boot-repair and just used it to set up an MBR thinking that'd be better than a non working gpt efi grub but now it's saying no operating system found. This is the output log from doing that: https://pastebin.com/46gjUB3p
For some context, and yeah I know past me really was on something deciding all of the various drives to boot from, but /dev/sdc1 is /root /dev/sdd1 is my EFI grub partition, and now /dev/sdb is where the mbr is.
I've also tried every boot order in the BIOS as well as physically unplugging all drives except for sdc and sdd and had the same issues.
I'm relatively competent in using linux, so I'll try anything, I'm just obviously not very good at figuring out what's wrong.