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A few hours ago I installed C# compiler from the terminal in Ubuntu 22.04. Some seconds later the screen froze. Input devices were not working. Only the power button still worked. I turned it off and turned it on again, but it turned out like this.

enter image description here

karel
  • 114,770
  • Please check your question; your Ubuntu 22.04 boots to "The image you are requesting does not exist, or is no longer available. imgur.com" ? Before you used the power button, did you try a clean shutdown using SysRq commands? By using an unclean shutdown I'd suggest booting live media and performing file-system checks, also I'd suggest providing package details of how you installed C#, and clarify if you're using Ubuntu 22.04 LTS Server, Ubuntu 22.04 LTS Desktop etc. – guiverc Mar 09 '23 at 10:16

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This question is a potential duplicate of multiple questions on the Ubuntu and Unix forums, and the most common issues seem to be incorrect mounting options in /etc/fstab, drive corruption, or incorrect BIOS settings. For troubleshooting steps, please refer to the following posts:

  1. UUID=xxx does not exist. Dropping to a shell
  2. ALERT! /dev/disk/by-uuid/xxxxxxxxx does not exist. Dropping to a shell
  3. Gave up waiting for root file system device, in Ubuntu 18.04
  4. https://ubuntuforums.org/showthread.php?t=2479761

Hope this helps!