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24f8f09876
I dualboot between 2.4.x and 2.6.x right now, and although I want udev to start up when 2.6 is booting, I don't want it to try when 2.4.x is booting. This is a small patch to not start up udev if sysfs is not mounted.
115 lines
2.4 KiB
Bash
115 lines
2.4 KiB
Bash
#! /bin/bash
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#
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# random init script to setup /udev
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#
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# chkconfig: 2345 20 80
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# description: manage user-space device nodes in /udev
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#
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# 2003-12-23: - some tweaks to run silently on a debian system
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# 2003-12-30: - manage creation (and deletion) of /proc/self/fd->fd and
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# fd/[0,1,2]->std[in,out,err] links
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# - creation and deletion of /proc/kcore->core link
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# - creation and deletion of /proc/asound/oss/sndstat->sndstat link
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udev_dir=/udev
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sysfs_dir=/sys
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bin=/sbin/udev
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action () {
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if test $2 ; then
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echo $1
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else
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echo "Assertion $2 failed"
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echo "Aborting"
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exit 1
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fi
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}
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run_udev () {
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# handle block devices and their partitions
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for i in ${sysfs_dir}/block/*; do
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# add each drive
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export DEVPATH=${i#${sysfs_dir}}
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$bin block &
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# add each partition, on each device
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for j in $i/*; do
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if [ -f $j/dev ]; then
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export DEVPATH=${j#${sysfs_dir}}
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$bin block &
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fi
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done
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done
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# all other device classes
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for i in ${sysfs_dir}/class/*; do
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for j in $i/*; do
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if [ -f $j/dev ]; then
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export DEVPATH=${j#${sysfs_dir}}
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CLASS=`echo ${i#${sysfs_dir}} | \
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cut --delimiter='/' --fields=3-`
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$bin $CLASS &
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fi
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done
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done
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}
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case "$1" in
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start)
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if [ ! -d $udev_dir ]; then
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mkdir $udev_dir
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fi
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# don't use udev if sysfs is not mounted
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if [ ! -d $sysfs_dir/block ]; then
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exit 1
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fi
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# propogate /udev from /sys - we only need this while we do not
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# have initramfs and an early user-space with which to do early
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# device bring up
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action "Creating initial udev device nodes: " /bin/true
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export ACTION=add
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run_udev
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# hack to create stdin node
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cd $udev_dir && ln -s /proc/self/fd fd
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cd $udev_dir && ln -s fd/0 stdin
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cd $udev_dir && ln -s fd/1 stdout
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cd $udev_dir && ln -s fd/2 stderr
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cd $udev_dir && ln -s /proc/kcore core
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cd $udev_dir && ln -s /proc/asound/oss/sndstat sndstat
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;;
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stop)
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# be careful
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action "Removing udev device nodes: " /bin/true
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export ACTION=remove
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run_udev
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rm -f $udev_dir/sndstat
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rm -f $udev_dir/core
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rm -f $udev_dir/stderr
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rm -f $udev_dir/stdout
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rm -f $udev_dir/stdin
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rm -f $udev_dir/fd
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;;
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status)
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if [ -d $udev_dir ]; then
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echo "the udev device node directory exists"
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else
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echo "the udev device node directory does not exist"
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fi
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;;
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restart)
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$0 stop
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$0 start
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;;
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reload)
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# nothing to do here
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;;
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*)
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echo "Usage: $0 {start|stop|status|restart}"
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exit 1
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esac
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exit 0
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