Recovering linux boot entries in a UEFI dual boot setting

Question

I have recently upgraded my MSI GS63VR-6RF with a 32 GB RAM. Upon upgrade, I noticed that the system automatically boots to my windows 10 partition instead of the typical systemd-boot screen where I can choose whether to use Arch Linux or Windows 10.

My first approach was to use the bootable Arch linux installer to access my arch partition. Provided that sda2 is my EFI boot, sda6 is my linux root, and sda7 is my swap, here are what I did:

1. create the swap

   swapon /dev/sda7

2. mount partitions

   mount /dev/sda6 /mnt

   mount /dev/sda2 /mnt/boot

3. switch to arch root on system

   arch-chroot /mnt

4. install bootloader

   bootctl --path=/boot install

5. unmount and reboot

However, the system cannot still detect my arch linux partition. Any help is greatly welcomed.

Thanks!

• Johan Myréen: What do bootctl and bootctl list say? Maybe the EFI variables have been overwritten. What does efibootmgr print?

Answer 1

As a guess, Windows saw a hardware change, did a scan, and reverted its bootloader config.

Have you tried # bootctl --path=esp install (per your initial config) again? Have you checked the efi folders and made sure the Arch entry was there?

Note reply:

What do bootctl and bootctl list say? Maybe the EFI variables have been overwritten. What does efibootmgr print? – Johan Myréen 2 days ago

Answer 2

Change boot order? It should be an intuitive and easy fix; worked flawlessly on my once multi-booted Samsung NP300E4C.