Convert from systemd-boot to grub

General system Newbie
1

Few months ago I had EndeavourOS installed with grub on my laptop. However, I replaced it with another distro (because I enjoy distrohopping). After a while, I decided to reinstall EndeavourOS again but with systemd-boot. The problem is after installing, I can’t find EndeavourOS and boot from it.

Although I can reinstall EndeavourOS, I would prefer not to due to my slow internet (a temporary problem that may last a month) causing me to take around 5 hours or more to install it. So is it possible to change it to grub using the live usb I have? Additionally, if I can’t, what are my other workarounds to address my problem?

Other details:

  1. I’m dual booting with Windows
  2. My laptop is Lenovo Legion 5
  3. My last distro before I replaced it with EndeavourOS was Garuda Linux
2

Boot live USB, chroot, install GRUB.
https://discovery.endeavouros.com/system-rescue/repair-a-non-booting-grub/2021/03/

3

Thanks, I will try this and update if this works.

4

Did you look into your firmware settings to see if you need to change the boot priority to EnOS?

Also, you could try to bringing up the on-time boot menu and see if you have an option for booting EnOS.

5

This is absolutely not how you convert from systemd-boot to grub. It may be too late this point, but this will 100% leave you with a non-booting system.

You probably just need to set to the right default option in your BIOS or using efibootmgr. It will say something like “Linux Boot Manager”

6

Yes, I’ve tried that but unfortunately it didn’t solve my issue.

7

Elaborate? I’m still quite confused on the efibootmgr part.

I had to do something to else earlier, so I didn’t completely install grub yet. So far, I’ve just chrooted and downloaded the grub package through pacman. I’ve also created a boot partition. That’s about it.

8

The easiest thing to to do is go into your bios and look for “Linux Boot Manager” in the boot priorities.

If that doesn’t work, arch-chroot into your system(ensuring you properly mount your EFI partition at /efi inside the chroot and run bootctl install

You should remove this change first. That isn’t needed in either case and will only make things more complicated.

9

I think I messed up somewhere, so I’ll reattempt doing it, but I did the bootctl command and it says reboot to firmware interface.

10

arch-chroot back in and run reinstall-kernels.

11

After booting it, I got timed out at the /dev/gpt-auto-root

it says dependency failed for Initrd Root Device, Root Partition, Initrd Root File System, Mountpoints Configured in the Real Root, and File System Check on /dev/gpt-auto-root

12

Can you explain what you did before the system stopped booting in the first place?

13

I just did the normal install using the official installer. For the partitioning, I just clicked replace a partition then replaced my Garuda Linux partition.

14

I don’t think I can solve the issue soon, so I’ll just reinstall the entire OS using the offline installer.

15

So it never booted after the installation?

16

I am sure we can fix it but if it is a brand new install it is probably easier to reinstall.

17

yes

18

Yeah, it’s a new install