22
Need help asap
(sh.itjust.works)
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
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My suggestion would be to use an Ubuntu installer ISO to get access to your broken system so you can backup anything important and then reinstall Ubuntu. It will just be faster than trying to salvage a broken upgrade
Ah, the ancient ritual persists.
Sometimes blowing everything up is easier. And more fun!
Adding that this would work even if OP uses full disk encryption, as it's encrypted with a passphrase; just double-click the drive in the file manager and enter the encryption passphrase when prompted (NOT a sudo password!)