filesystem: mount devtmpfs if not already mounted.

rules/filesystem/fs/sbin/services

@@ -14,6 +14,10 @@ fi
 
 sysinit()
 {
+    if ! [ -c /dev/null ]; then
+        mount -t devtmpfs devtmpfs /dev
+    fi
+
     if [ -f /.reboot ]; then
         mount -t proc proc /proc
         mount -o remount,rw /
@@ -23,36 +27,33 @@ sysinit()
         return 0
     fi
 
-# Mount pseudo-filesystems.
+    # Mount pseudo-filesystems.
     mount -t sysfs sysfs /sys &&
     mount -t proc proc /proc &&
     mkdir /dev/shm /dev/pts &&
     mount -t tmpfs -o size="$cfg_tmpfs_size" tmpfs /dev/shm &&
     mount -t devpts devpts /dev/pts &&
 
-# Register mdev as hotplug event handler.
+    # Register mdev as hotplug event handler.
     echo >/dev/mdev.seq &&
     echo /sbin/mdev > /proc/sys/kernel/hotplug &&
 
-# Update ld cache, populate /dev.
-#    mount -o remount,rw / &&
+    # Update ld cache, populate /dev.
     /sbin/mdev -s &&
-#    /sbin/ldconfig &&
-#    mount -o remount,ro / &&
 
-# Set minimum free kbytes.
+    # Set minimum free kbytes.
     echo "$cfg_min_free_kbytes" > /proc/sys/vm/min_free_kbytes &&
 
-# Set hostname.
+    # Set hostname.
     hostname "$cfg_hostname" &&
 
-# Loopback device.
+    # Loopback device.
     ifconfig lo 127.0.0.1 netmask 255.0.0.0 up &&
 
-# Load modules.
+    # Load modules.
     modprobe -a $cfg_modules $cfg_modules1
 
-# Start services.
+    # Start services.
     for service in $cfg_services0 $cfg_services1 $cfg_services2; do
         . /etc/rc.d/$service
         start