Replace ubuntu loader with arch loader

snovik · 2017-10-03 18:38:51

I am very sorry but I cannot make sense out of the wiki.

I initially installed ubuntu. After that arch. Now I realized that ubuntu loader does not load updates of intel ucode on arch.

How can I replace ubuntu loader with arch? I have read wiki (https://wiki.archlinux.org/index.php/GRUB#Configuration) but cannot navigate myself around.

I get stuck on the 1st thing which is "Check if you have GPT and an ESP". I have both:

Model: ATA LITEON CV3-DE256 (scsi)
Disk /dev/sda: 256GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags: 

Number  Start   End     Size    File system  Name                  Flags
 1      1049kB  538MB   537MB   fat32        EFI System Partition  boot, esp
 2      538MB   16.6GB  16.1GB  ext4         arch
 3      16.6GB  32.8GB  16.1GB  ext4         ubuntu
 4      32.8GB  256GB   223GB   ext4         data

Last edited by snovik (2017-10-03 18:39:28)

jasonwryan · 2017-10-03 19:35:00

If Grub is your boot manager/loader, then you just alter the config, as per the wiki.

circleface · 2017-10-03 20:07:41

You should have both GPT and an EFI partition in order to boot a UEFI system.

Edit:
Grub has a very complex configuration. Maybe you would be better off using a simple boot manager like systemd-boot.

Last edited by circleface (2017-10-03 20:09:24)

seth · 2017-10-03 20:11:50

iirc, ubuntu will automatically update the bootloader whenever it feels like - in doubt overriding the one placed there by arch.
In that case, you're better off leaving control over it to ubuntu and maybe elaborate on "does not load updates of intel ucode on arch" - because it makes little sense. You just got to add that to the correct kernel command line.

snovik · 2017-10-03 20:20:05

seth wrote:

iirc, ubuntu will automatically update the bootloader whenever it feels like - in doubt overriding the one placed there by arch.
In that case, you're better off leaving control over it to ubuntu and maybe elaborate on "does not load updates of intel ucode on arch" - because it makes little sense. You just got to add that to the correct kernel command line.

sure. but it is on the arch partition and mixing things up that much is going too far. or?

seth · 2017-10-03 20:28:35

What is on the arch partition? You need to copy the microcode into the boot partition, resp. you should mount the same boot partition from arch and ubuntu...

https://wiki.archlinux.org/index.php/Microcode
Read this and if you've trouble following it, ensure to precisely lay out your boot configuration - as is. Then explain where you struggle.

Arch Linux

#1 2017-10-03 18:38:51

Replace ubuntu loader with arch loader

#2 2017-10-03 19:35:00

Re: Replace ubuntu loader with arch loader

#3 2017-10-03 20:07:41

Re: Replace ubuntu loader with arch loader

#4 2017-10-03 20:11:50

Re: Replace ubuntu loader with arch loader

#5 2017-10-03 20:20:05

Re: Replace ubuntu loader with arch loader

#6 2017-10-03 20:28:35

Re: Replace ubuntu loader with arch loader

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