my PC runs on 21.10. It did its usual daily update, but today after booting I find that the login screen was low resolution and there was no network and once booted there was no network, low screen resolution and no sound card. I basically can do little with the PC. I also noted that whilst the GRUB screen was a normal resolution, the text is not showing and I can not move the cursor, so can not select Advanced - Recovery. Also noticed when going into GRUB rescue that there is a new entry of each reboot, something script.
The processor is an Intel i5 - 2500K, 32G memory and over 2,700 storage. Whilst there is a partition for Windows, it is not installed and there are no other OS on the machine.
Do you need anything else? What cmd should I try?
Thank you.
As I am not allowed to answer my own query, please see the below solution.
SOLVED: I changed GRUB, via GRUB Customizer to boot into an earlier kernel recovery. Went through the options, such as enable network, check drives, fix packages etc, and did an update whilst there. Then rebooted and the network and audio returned. Then went into additional drivers and changed the video driver to NVIDIA and rebooted. All seems OK now. I am guessing that the upgrade was incomplete.
