Arch Linux

SpeedLight1221

Member

Registered: 2025-07-17

Posts: 3

Install GRUB on an already installed system

Hello everyone,

recently I installed Arch on my second disk. (I have windows on the other). After some issues (caused by my incompetence) I have both systems working.
My issue is that Arch is not getting loaded by grub, but by what seems to be some default bootloader called "UEFI OS" when listed by efibootmgr.

I would like to replace that with grub, but i haven't been able to find any resources for this.

Thank you.

SimonJ

Member

From: Alicante, Spain

Registered: 2021-05-11

Posts: 309

Website

Re: Install GRUB on an already installed system

Just return to the wiki steps and install grub again.Maybe here https://wiki.archlinux.org/title/Arch_b … oot_loader

Last edited by SimonJ (2025-07-17 11:59:39)

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Rlu: 222126

cryptearth

Member

Registered: 2024-02-03

Posts: 2,112

Re: Install GRUB on an already installed system

grub adds an bootloader-id on its own when given by the --bootloader-id parameter
"uefi os" hints towards sme other bootloader like systemd-boot or refind