GRUB entry for booting Arch Linux ISO

40_iso.cfg

# This entry boots an Antergos (Arch) Linux ISO straight from disk.
# LVM is not supported because the lvm module is not loaded in Antergos initrd

menuentry "Antergos Minimal ISO 2015-09-13" {
        insmod part_gpt
        insmod lvm
        insmod loopback
        set root=(hd0,0)
        set isofile=/antergos.iso
        search --no-floppy --file ${isofile} --set
        loopback loop ${isofile}
        linux (loop)/arch/boot/vmlinuz img_loop=${isofile} img_dev=/dev/sda1 earlymodules=loop,lvm2 archisobasedir=arch archisolabel=ANTERGOS
        initrd (loop)/arch/boot/archiso.img
}