prepare init to mount devtmpfs instead of tmpfs on /dev

diff --git a/modules.d/99base/init b/modules.d/99base/init
index 113b130..2acf274 100755 (executable)
--- a/modules.d/99base/init
+++ b/modules.d/99base/init
@@ -27,15 +27,20 @@ mknod /dev/null c 1 3
 # mount some important things
 mount -t proc /proc /proc >/dev/null 2>&1
 mount -t sysfs /sys /sys >/dev/null 2>&1
-mount -t tmpfs -omode=0755 udev /dev >/dev/null 2>&1
 
-getarg rdinitdebug && set -x
-# Make some basic devices first, let udev handle the rest
-mknod /dev/null c 1 3
-mknod /dev/ptmx c 5 2
-mknod /dev/console c 5 1
-mknod /dev/kmsg c 1 11
+if [ ! -c /dev/ptmx ]; then
+    if mount -t devtmpfs -omode=0755 udev /dev >/dev/null 2>&1; then
+    :; else
+       mount -t tmpfs -omode=0755 udev /dev >/dev/null 2>&1 
+       # Make some basic devices first, let udev handle the rest
+       mknod /dev/null c 1 3
+       mknod /dev/ptmx c 5 2
+       mknod /dev/console c 5 1
+       mknod /dev/kmsg c 1 11
+    fi
+fi
 
+getarg rdinitdebug && set -x
 mkdir /dev/shm
 mkdir /dev/pts
 mount -t devpts -o gid=5,mode=620 /dev/pts /dev/pts >/dev/null 2>&1