Hi all, it's been a while...
While updating my sever from 10.x (can't remember which version) to 11.5. After the update the server wouldn't boot, and it appears that my flash drive is corrupted. Of course, I didn't follow the instructions and failed to create a flash backup before the upgrade, so I'm wondering if the upgrade process does anything to automatically back up the flash drive contents somewhere. It's probably a long shot, but my other choice is to restore to the last flash backup I have from 2018 and try to remember what I changed since then.
If anyone has any tips for accessing a flash drive that Windows doesn't even recognize ("D:\ is not accessible. The file or directory is corrupted and unreadable."), I'm all ears.
Attached is what I see on the console during server boot: