diff --git a/mklive.sh b/mklive.sh
index e4098b39f..26283d143 100755
--- a/mklive.sh
+++ b/mklive.sh
@@ -51,12 +51,13 @@ mount_pseudofs() {
     for f in sys dev proc; do
         mkdir -p "$ROOTFS"/$f
         mount --rbind /$f "$ROOTFS"/$f
+        mount --make-rslave "$ROOTFS"/$f
     done
 }
 
 umount_pseudofs() {
 	for f in sys dev proc; do
-		if [ -d "$ROOTFS/$f" ] && ! umount -R -f "$ROOTFS/$f"; then
+		if [ -d "$ROOTFS/$f" ] && ! umount -R -l -f "$ROOTFS/$f"; then
 			info_msg "ERROR: failed to unmount $ROOTFS/$f/"
 			return 1
 		fi