Arch Linux

SatoruTajiri

Member

From: Japan

Registered: 2021-11-28

Posts: 11

[SOLVED] Grub cannot boot after update

Before you laugh at me for not reading the Arch news, yes, I read it.

After updating I tried to reinstall grub with grub-install, but I couldn't because the updated kernel meant I couldn't mount the EFI partition properly.

I updated my grub config.

After rebooting, grub didn't open.

How can I get into Arch/reinstall grub?

I am dual booting with Windows but I hate using it, so it's a last resort.

What can I do?

Last edited by SatoruTajiri (2022-08-31 03:55:23)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 21,764

Re: [SOLVED] Grub cannot boot after update

Boot the live disk, mount all your partitions like the should be, chroot in and run the appropriate grub-install/grub-mkconfig commands.

Last edited by V1del (2022-08-30 23:45:47)

SatoruTajiri

Member

From: Japan

Registered: 2021-11-28

Posts: 11

Re: [SOLVED] Grub cannot boot after update

I won't have access to anything with bootable media for at least a day, so is there any other way to fix it? (Windows? UEFI shell?)

Otherwise, I'll just hold out until then.
Thanks

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 21,764

Re: [SOLVED] Grub cannot boot after update

If the grub.cfg is on your ESP/on a file system you can access from Windows you can remove the fwsetup --is-supported line that leads to the crash with the old GRUB. From the sounds of it you'd still need to fix your general kernel loading setup, which might be a bit more involved.

Last edited by V1del (2022-08-31 00:14:12)

SatoruTajiri

Member

From: Japan

Registered: 2021-11-28

Posts: 11

Re: [SOLVED] Grub cannot boot after update

I found an old drive and chrooted, it all seemed to work out thanks