I have a computer running KDE Neon. I recently attempted to repair grub using
boot-repair since I kept getting the
grub-rescue screen when booting. Now when I try to boot I see the grub
Select Operating System screen but after selecting any option on the list, or clicking
C to edit selection or open grub command line, the whole computer just freezes forcing me to hold the power button to turn it off.
Today, for a completely unrelated reason, I installed a fresh install of KDE Neon in VirtualBox on my (different) Windows computer. I was able to use the operating system after I installed it, but after I restarted the VM after using it for only a few minutes, the same exact issue happened where I saw the grub
Select Operating System screen, and after selecting any option the VM froze. I also got a message from VirtualBox saying
A critical error has occurred.
I have restarted the VM a few times before this and it worked fine. I'm not sure if this issue is in any way related to the issue with the other computer, but I thought i'd at least mention it. Also I'm more worried about fixing the other computer than the VM. If anyone knows how I can get my computer to boot again I'd appreciate the help. Thanks.