THIS APPLIES TO ALL ARCH LINUX BASED DISTRO’S

Changing root is commonly done for performing system maintenance on systems where booting and/or logging in is no longer possible. Common examples are:

Then we mount the partitions we need and undo whatever broke your system.

loadkeys be-latin1
mount /dev/sda3 /mnt
mount /dev/sda1 /mnt/boot
arch-chroot /mnt