[PATCH] added init.d udev script for debian

Thanks to Mathieu Segaud <matt@minas-morgul.org> for the file.

diff --git a/etc/init.d/udev.debian b/etc/init.d/udev.debian
new file mode 100644 (file)
index 0000000..cf7b007
--- /dev/null
+++ b/etc/init.d/udev.debian
@@ -0,0 +1,113 @@
+#! /bin/bash
+#
+# random       init script to setup /udev
+#
+# chkconfig: 2345 20 80
+# description: manage user-space device nodes in /udev
+#
+# 2003-12-23: - some tweaks to run silently on a debian system
+# 2003-12-30: - manage creation (and deletion) of /proc/self/fd->fd and 
+#              fd/[0,1,2]->std[in,out,err] links
+#            - creation and deletion of /proc/kcore->core link 
+#            - creation and deletion of /proc/asound/oss/sndstat->sndstat link 
+
+
+
+udev_dir=/udev
+sysfs_dir=/sys
+bin=/sbin/udev
+
+action () {
+       if test $2 ; then
+               echo $1
+       else
+               echo "Assertion $2 failed"
+               echo "Aborting"
+               exit 1
+       fi
+}
+
+run_udev () {
+       # handle block devices and their partitions
+       for i in ${sysfs_dir}/block/*; do
+               # add each drive
+               export DEVPATH=${i#${sysfs_dir}}
+               $bin block &
+
+               # add each partition, on each device
+               for j in $i/*; do
+                       if [ -f $j/dev ]; then
+                               export DEVPATH=${j#${sysfs_dir}}
+                               $bin block &
+                       fi
+               done
+       done
+       # all other device classes
+       for i in ${sysfs_dir}/class/*; do
+               for j in $i/*; do
+                       if [ -f $j/dev ]; then
+                               export DEVPATH=${j#${sysfs_dir}}
+                               CLASS=`echo ${i#${sysfs_dir}} | \
+                                       cut --delimiter='/' --fields=3-`
+                               $bin $CLASS &
+                       fi
+               done
+       done
+}
+
+
+case "$1" in
+  start)
+       if [ ! -d $udev_dir ]; then
+               mkdir $udev_dir
+       fi
+       if [ ! -d $sysfs_dir ]; then
+               exit 1
+       fi
+       # propogate /udev from /sys - we only need this while we do not
+       # have initramfs and an early user-space with which to do early
+       # device bring up
+       action "Creating initial udev device nodes: " /bin/true
+       export ACTION=add
+       run_udev 
+
+       # hack to create stdin node
+       cd /udev && ln -s /proc/self/fd fd
+       cd /udev && ln -s fd/0 stdin
+       cd /udev && ln -s fd/1 stdout
+       cd /udev && ln -s fd/2 stderr
+       cd /udev && ln -s /proc/kcore core
+       cd /udev && ln -s /proc/asound/oss/sndstat sndstat
+       ;;
+  stop)
+       # be careful
+       action "Removing udev device nodes: " /bin/true
+       export ACTION=remove
+       run_udev 
+       rm -f /udev/sndstat
+       rm -f /udev/core
+       rm -f /udev/stderr
+       rm -f /udev/stdout
+       rm -f /udev/stdin
+       rm -f /udev/fd
+       ;;
+  status)
+       if [ -d $udev_dir ]; then
+               echo "the udev device node directory exists"
+       else
+               echo "the udev device node directory does not exist"
+       fi
+       ;;
+  restart)
+       $0 stop
+       $0 start
+       ;;
+  reload)
+       # nothing to do here
+       ;;
+  *)
+       echo "Usage: $0 {start|stop|status|restart}"
+       exit 1
+esac
+
+exit 0