Artix Linux
no systemd
rolling release, pacman, alternative init

ISO images
https://mirror.math.princeton.edu/pub/artixlinux/

Convert from BIOS to UEFI

Boot into a live Linux environment in UEFI mode and confirm that efivarfs is available

# df

efivarfs 128K 24K 100K 20% /sys/firmware/efi/efivar

Mount the / (root) partition and /boot/efi partition (e.g. sda2 and sda1)

# lsblk

# mount /dev/sda2 /mnt

# mount /dev/sda1 /mnt/boot/efi

Mount virtual pseudo-filesystems

# cd /mnt

# mount -t proc /proc proc

# mount -t sysfs /sys sys

# mount --bind /dev dev

# mount --bind /run run

# mount --bind /sys/firmware/efi/efivars sys/firmware/efi/efivars

Change root directory to the mounted target system

# chroot /mnt /bin/bash

Install boot loader

# grub-install

or

# grub-install --efi-directory=/boot/efi

or

# grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=Artix

Regenerate GRUB configuration if needed

# grub-mkconfig -o /boot/grub/grub.cfg

Edit /etc/fstab to mount the EFI partition

# vim /etc/fstab

#UUID=D233-722D /boot/efi vfat defaults 0 1

LABEL=EFI /boot/efi vfat defaults 0 1

Exit chroot and unmount

# exit

# cd

# umount -R /mnt

Adjust the UEFI Boot Manager entries

# efibootmgr -v # display current information

# efibootmgr -o xxxx,yyyy # set boot order

# efibootmgr -b nnnn -A # optionally de-activate unwanted entries

# efibootmgr -b zzzz -B # optionally delete old entries

# efibootmgr -t 5 # optionally set timeout