Arch Linux

Heisenberg32

Member

Registered: 2022-04-18

Posts: 23

[Solved] GRUB and different hard drives

hi everyone,
I have a pc with two ssd, in the main ssd I installed arch linux and windows 11, in the other ssd I use it for w11 storage. I would like to install another OS in the second ssd, but how can I show the OS installed, in the second ssd, on GRUB?

Last edited by Heisenberg32 (2022-09-08 17:22:51)

Slithery

Administrator

From: Norfolk, UK

Registered: 2013-12-01

Posts: 5,776

Re: [Solved] GRUB and different hard drives

https://wiki.archlinux.org/title/GRUB#D … ng_systems

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Heisenberg32

Member

Registered: 2022-04-18

Posts: 23

Re: [Solved] GRUB and different hard drives

https://wiki.archlinux.org/title/GRUB#D … ng_systems

so if I had to install another arch (or another distro) in the second ssd, I have to follow the same guide and after the installation I have to update grub in the main ssd?

Last edited by Heisenberg32 (2022-09-07 12:44:58)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,263

Re: [Solved] GRUB and different hard drives

Yes, make sure you have the drive where your other OS kernels/bootable images are mounted somewhere so that os-prober/grub-mkconfig can detect the additional entries it has to generate.

Heisenberg32

Member

Registered: 2022-04-18

Posts: 23

Re: [Solved] GRUB and different hard drives

Yes, make sure you have the drive where your other OS kernels/bootable images are mounted somewhere so that os-prober/grub-mkconfig can detect the additional entries it has to generate.

I did it, it was easy, it was enough to mount the partition with second os (the second os is another installation of arch) on /mtn and run update of grub, all of this on the main os. Anyway, don't I need to install grub and microcode in the second os, becose I installed them in the main installation, right? (sorry for stupid question, but I am still learning).

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,263

Re: [Solved] GRUB and different hard drives

That should be the case yes, not sure whether it will autoadd the initrd entry for the ucode but I'm thinking it should.

cfr

Member

From: Cymru

Registered: 2011-11-27

Posts: 7,178

Re: [Solved] GRUB and different hard drives

I don't think you want to install grub in the second OS. You could, but I think it would confuse matters and provide no benefit. Microcode is different. But it is usually easiest if you have at most one boot loader (e.g. grub).

Note: I'm assuming you're booting UEFI because you have Windows 11. If not, you should ignore this post completely.

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