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I have installed the distro 20.04 before several months, it was working fine. Before one month I have updated it through the updater, and then, when I rebooted and then, there was a black screen with the choices, Ubuntu, ... and Windows (I have a dual device). To start Ubuntu normally leads to a totally black screen. I can only start Ubuntu advanced options and then in recovery mode. Every few days, I update again but despite that, it is impossible to start the Ubuntu normally. My question is if there is a way to simply repair the system, or it is mandatory to reinstall it with an USB key.

Previously I tried to update and upgrade with the terminal by apt update and apt upgrade, but nothing helps.

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if you can get to the terminal and something has not completed from before restart then.

sudo dpkg --configure -a

May complete it - and I've had that on two RYZEN CPU based p

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  • I will try thank you – kouty May 10 '20 at 19:27
  • dpkg: error: unknown option -o – kouty May 11 '20 at 3:03
  • The option is -a and not -o sudo dpkg --configure -a Type dpkg --help for help about installing and deinstalling packages – Loub May 11 '20 at 3:23
  • I wrote -a, and the output is as I wrote in comment – kouty May 11 '20 at 5:09
  • Sometimes if its not shutting down you can ssh in and restart by force and or run that command. You can possibly boot into an older kernel and after a few complaints ctrl-alt-F2 until you get terminal prompt. – Michael Nolan May 13 '20 at 0:31

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