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Ubuntu 20.04 not booting after upgrading from 18.04 on my dell vostro 460 pc. I updated it sucessfully and it booted, but the keyboard was unresponsive during the dual boot. So I tried to update the grub from the terminal. After that I restarted and it is not booting instead showing a black screen with a - (hyphen) blinking. I tried to repair the boot using a live usb and used this code in the terminal

sudo add-apt-repository ppa:yannubuntu/boot-repair && sudo apt update
sudo apt install -y boot-repair && boot-repair

Still the problem is not resolved.

edit: This also I tried to update the input devices for the keyboard issue during the dual boot

sudo apt-get install --reinstall xserver-xorg-input-all
Arjun Sabu
  • 11

1 Answers1

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  1. choose advanced options in boot-repair
  2. in grub options choose purge kernels then reibstall last kernel

    enter image description here
Talaat Etman
  • 1,340