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Grub menu not showing after recent Upgrade

Ask Ubuntu Asked by Eduardo Baitello on February 4, 2021

I’m running Ubuntu 18.04 alongside Windows 10 in a dual-boot.
I was used to selecting what OS I can boot in the GRUB menu at startup.

Yesterday GRUB was upgraded to patch the Boot Hole security. Now the GRUB menu don’t show, and the boot goes straight to Windows 10…

I already tried the following on Windows 10, but without success :

bcdedit /set {bootmgr} path EFIubuntugrubx64.efi

Anyone facing the same can help?

PS: I’m using UEFI

One Answer

I tried to inspect my BIOS setup. I didn't change anything, and I even used the option "discard changes" to exit. After exiting the setup, the GRUB menu magically showed up.

I was able to select Ubuntu, boot it, and then run:

sudo update-grub

This fixed the issue; new reboots are showing the GRUB menu again.

Answered by Eduardo Baitello on February 4, 2021

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