Setting Ubuntu as first Preference in BIOS

Issue

In my laptop, Windows 11 has an issue with rebooting. Each time it tries to reboot, I immediately run into a blank screen.

However, rebooting works perfectly fine within Ubuntu. Thus, I wanted to set Ubuntu as First preference instead of Windows.

Setting Ubuntu as First Preference

I went to boot manager and changed preference order

anu@laptop:~$ sudo efibootmgr
[sudo] password for anu: 
BootCurrent: 0001
Timeout: 0 seconds
BootOrder: 0004,0001,0003,9999
Boot0004* Windows Boot Manager.........
Boot0001* Ubuntu........
Boot0003* Solid State Disk........
Boot9999* USB Drive (UEFI)............

anu@laptop:~ sudo efibootmgr 0001,0004,0003,9999

Attempts

  • Turning off Fast Startup

  • Setting Windows as the default option in Ubuntu GRUB

  • Giving Windows first preference in Startup

Result: It didn't work.

Current Status

Thus, I have postponed this issue until I have time to work on it again. And I set Ubuntu as the first preference in BIOS, so it will automatically prefer Ubuntu.

Steps Taken:

  1. Edit Grub: sudo nano /etc/default/grub

  2. Set: GRUB_DEFAULT = 0

  3. Update & Reboot:
    bash sudo update-grub sudo reboot

Update:
I realized that the same issue pops up if I boot using Windows even once. It seems that the boot order is overwritten by windows.. so I have to fix it each time I log in to Windows..

I will look into this Issue and update this post if there are any permanent fixes..

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