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I ran sudo apt upgrade. The process got stuck at 49% and my laptop hanged. I couldn't do anything at all to make it work, so I force closed like I used to do in Windows. Now when I boot it up, it sticks on a black screen with a blinking cursor and mouse pointer. How to fix it?

Some background

Also, my laptop is Acer Aspire 7 (Ryzen 5000 series), so it has some problems with kernels 5.10 lower. So I had updated the LTS version default kernel to the latest one. If that was in any way the reason for this issue.

Also, I did not use the new 21 version because I wanted to run ROS2 and its support is till 20.04 only for now.

Tejas Lotlikar
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Pragyan
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  • I would start going to [a terminal (Ctrl+Alt+F4)](https://askubuntu.com/q/277517/349837) and `sudo apt install --fix-broken && sudo update-grub` – Pablo Bianchi Jul 31 '21 at 21:38
  • @PabloBianchi When I enter my username and password then after that terminal initial msg this thing comes Terminal error https://imgur.com/gallery/dIiy4A2 – Pragyan Jul 31 '21 at 21:56
  • You can't reach the shell? Already rebooted? Seems a nouveau issue, did you try `sudo ubuntu-drivers install`? Do you have enough space? `df -h` – Pablo Bianchi Aug 01 '21 at 00:12

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