-if ! grep -q "aufs /remaster/chroot" /proc/mounts ; then
- mount -t aufs aufs /remaster/chroot -o br:/remaster/tmp=rw:/remaster/cdrom=rr
+if ! grep -q "overlay /remaster/chroot" /proc/mounts ; then
+ mount -t overlay overlay -o lowerdir=/remaster/cdrom,upperdir=/remaster/tmp,workdir=/remaster/work /remaster/chroot