*** Know issues ** (1) On shutdown lots of messages from systemd like: "Could not unmount /run/archiso/: Device or resource busy" "Could not delete loopback /dev/loop: Device or resource busy" This is not a real issue since, all mounted filesystem, loopback devices and device mapper devices made by archiso will be "free" on "shutdown tmpfs" (A.K.A deinitramfs), build at initramfs by [archiso_shutdown] initcpio hook. Proper shutdown is mostly important when persistent is used. ** (2) syslinux 4.05 bug with relative directories on FAT: "Could not find kernel image: boot/syslinux/whichsys.c32" This should be fixed in 4.06. For now, workaround with: sed -i "s|../../|/arch|" //arch/boot/syslinux/syslinux.cfg