I've been smoking WAY too much these past few days
Current theory is that this happened:
* we had two drives, both mirrored /, /boot and /swap and had not-mirrored efi partitions
* at some point, probably while I was doing hard power-cycle resets during the AI slopbot attack 'cause nothing else would get through, drive A got a fucked up efi partition
* the machine kept booting fine off drive B
* drive B died and was replaced with drive B2
* I copied fucked table from drive A to drive B2
We've reached the stage where I'm recruiting my IRL techy friends to come and gawp at this shit
Like when you go to the doctor for what you think is just a little mole or something and they go "I see, yes, I'm gonna get a second opinion" and then they bring in ten more guys who drop their coffees and shout FUCK ME LOOK AT THAT