sfs=$iso/arch/x86_64/airootfs.sfs
rm -rf $iso
ex $iso.iso
-sed -i -f - $iso/arch/boot/syslinux/archiso_pxe64.cfg <<EOF
+sed -i --follow-symlinks -f - $iso/arch/boot/syslinux/archiso_pxe64.cfg <<EOF
1itotaltimeout 1
/^LABEL arch64_nfs/a menu default
s/^APPEND .*/\0 script=arch-iso-init.sh/