diff --git a/base/mkinitrd/mkinitrd.sh b/base/mkinitrd/mkinitrd.sh
index 3618b73f0..846192762 100644
--- a/base/mkinitrd/mkinitrd.sh
+++ b/base/mkinitrd/mkinitrd.sh
@@ -126,8 +126,12 @@ cp -ar ${root}/lib/udev/* $tmpdir/lib/udev/
 
 # setup programs
 #
-for x in ${root}/sbin/{udevd,udevtrigger,udevsettle,modprobe,insmod} ${root}/usr/sbin/disktype
+for x in ${root}/sbin/{udevd,udevtrigger,udevsettle,modprobe,insmod,mdadm,lvm} ${root}/usr/sbin/disktype
 do
+	if [ ! -x $x ]; then
+		echo "Warning: $x is not available."
+		continue
+	fi
 	# sanity check
 	file $x | grep -q "dynamically linked" &&
 		echo "Warning: $x is dynamically linked!"