Linux Ubuntu Ubuntu 18.04 Windows Windows 10

Fix grub-intall /dev/sda failed while Ubuntu 20.04 instaltion

This error is due to “corrupt boot”, you need to repair boot. Please follow below steps to fix this issue.

Step 1: Enable PPA

PPA is required in boot repair utility. Open terminal and run –

sudo add-apt-repository ppa:yannubuntu/boot-repair
sudo apt update
Step 2: Install Boor Repair
sudo apt install boot-repair
Step 3: Run Boot Repair Utility

Click on Recommended repair

Click on Apply

Boot repair will prompt the result.

Restart computer and remove live pen drive or CD.

On the restart, you will be able to see the OS installed in the system. Boot your desired OS installed.

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