Arch Linux

lah

Member

Registered: 2014-08-26

Posts: 28

[SOLVED] EFI grub dual boot, arch not showing

I'm installing arch on my new desktop. It had Ubuntu already installed. It has an EFI partition from ubuntu install. Partition table is GPT.
Now are the last installation steps :
> reboot system and check my arch install
> delete existing ubuntu system

As I already have a bootloader in my ubuntu distribution, I did not install grub bootloader in my arch chrooted env. In order to update GRUB I tried this https://wiki.archlinux.org/index.php/GR … ation_file but I cannot get arch entry in GRUB when booting.
I've installed os-prober in my ubuntu distribution, it returns archlinux partition but it does not add any entry in grub startup screen.
I've also tried to generate grub.cfg with

grub-mkconfig -o /boot/grub/grub.cfg

but it does not change anything.
How can grub detect an arch system is present and add it in GRUB startup choices?

After, I will delete ubuntu install and resize partitions used for arch. I thought about just deleting ubuntu system partition and move/resize arch partitions using gparted. Then updating grub.

lah

Last edited by lah (2017-11-28 16:23:47)

lah

Member

Registered: 2014-08-26

Posts: 28

Re: [SOLVED] EFI grub dual boot, arch not showing

os-prober could not work... I had

GRUB_DISABLE_OS_PROBER=true

in /etc/default/grub

After update grub

sudo update-grub

And I now get an arch entry in grub startup screen