Arch Linux

DrLlap

Member

Registered: 2024-10-20

Posts: 21

[SOLVED] Can't mount /boot

I just installed Arch with a bootable USB. When I booted up after installation, I quickly realized I had forgotten to install NetworkManager. So I booted from the USB again, mounted the root

mount /dev/sdb2/ /mnt
arch-chroot /mnt

But being the idiot I am, I ran

pacman -Suy NetworkManager

This prompted a new boot image being generated but I didn't have /boot mounted at the time.
So now when I try to boot to the installed arch I get:

error mount /boot 
failed for Local File Systems

(Or something, typing this form memory)

I'm using GRUB with a dual but with Windows 10

Is there an easy fix for the if I boot into the USB again or is it just time to reinstall Arch?

Last edited by DrLlap (2025-03-17 19:00:13)

Scimmia

Fellow

Registered: 2012-09-01

Posts: 12,592

Re: [SOLVED] Can't mount /boot

It's nearly always possible to fix instead of reinstall. In this case, it's trivial, mount everything, arch-chroot, reinstall the kernel.

cryptearth

Member

Registered: 2024-02-03

Posts: 1,392

Re: [SOLVED] Can't mount /boot

I don't get why installing NetworkManager would cause anything boot related anyway
nvm
as how to fix: boot install media - mount root - clear /boot folder so its empty and can be used as mountpoint again - reboot
next: call "mount -a" after arch-chroot

Scimmia

Fellow

Registered: 2012-09-01

Posts: 12,592

Re: [SOLVED] Can't mount /boot

I don't get why installing NetworkManager would cause anything boot related anyway

It didn't, the system update did.

DrLlap

Member

Registered: 2024-10-20

Posts: 21

Re: [SOLVED] Can't mount /boot

It's nearly always possible to fix instead of reinstall. In this case, it's trivial, mount everything, arch-chroot, reinstall the kernel.

How do I reinstall the kernel?

pacman -S linux

?

Scimmia

Fellow

Registered: 2012-09-01

Posts: 12,592

Re: [SOLVED] Can't mount /boot

If that's the kernel package you're using, yes.