I installed the most recent Qubes 4 two days ago. After trying it out and getting some things working, I decided it wasn't for me and tried to revert to Ubuntu and Gnome Boxes.
When I tried to reinstall I could not boot Ubuntu (or any of several other distributions of Linux) due to fatal ACPI errors. The only way I can boot to Linux now is setting acpi=off in grub. Now, even if I do manage to boot and attempt an Ubuntu installation it dies with a fatal grub error. The machine has been running Ubuntu just fine for over a year. It has never had an ACPI error before. I am running an RX-580 in an Aourus Ultra Gaming Z370 board. I hadn't changed anything other than the OS before I started troubleshooting. I flashed the motherboard bios from F12 to F15 and loaded optimized settings. Didn't help. Still won't boot Linux normally. I used dd to zero out my NVME drive and totally remove Qubes. No help What the heck did Qubes change and how do I fix it? -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/2dd013ee-d2aa-43ae-9222-bdf621411a17%40googlegroups.com.