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Hello I am using ubuntu 21.04 and everytime I go to do sudo apt update I I get E: Error reading cpu table. I have no idea how to fix this. If anyone can help that would be great. Thanks!

Nmath
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Hunter Regan
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    It's easiest if you provide a full paste of the command & error message. A quick scan online and some posts indicate it's an issue with a corrupted file-system which is easiest to fix by booting a live system (eg. installation media & use "Try Ubuntu"), and file-system check (fsck) via command or GUI tool. Others indicate it's because of an interrupted install and fixes are more varied. – guiverc Jun 06 '21 at 03:18
  • Hello thank you for your reply. I am a bit confused on what you are saying, probably cause I am new to Ubuntu and new to linux in general. If you can explain it more for a noob like myself that would be great. – Hunter Regan Jun 10 '21 at 03:58
  • You haven't said if you were using a Ubuntu 21.04 Desktop, or Ubuntu 21.04 Server system, nor provided a full copy/paste of the error message. I would boot live media (eg. Ubuntu installation system & use the "Try Ubuntu" option) and perform file-system checks there (GUI or command tools can be used). This isn't Ubuntu/Linux specific detail; live media was available with Windows XP thru 10 but is expensive & thus rarely seen (available to OEM/enterprise). As I cannot see the full command & error message, I'm unwilling to provide specific advice, only generic advice that can do no harm. – guiverc Jun 10 '21 at 04:05
  • fyi: fsck or the file-system check command is called chkdsk in DOS/windows... it doesn't actually check a disk, but checks a file-system for logical errors that exists on a disk/partition/storage-device.. It doesn't check for bad sectors/clusters/inodes/blocks, but only file-system logical errors such as invalid pointers etc... If you're familiar with chkdsk from microsoft products since 1981; it's the same thing.. Microsoft called it fsck too before 1981 (ie. on their Xenix products) – guiverc Jun 10 '21 at 04:13

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