[PATCH] udev init script
I integrated udev with Fedora Core. The main piece is simply building /udev on boot, since we don't have an initramfs yet. We should also clear out /udev on shutdown, for /udev directories mounted on persistent media. The attached script goes in /etc/init.d Then do "chkconfig --add udev" And the rest is handled automatically. I made it for Fedora but it will probably work, with little change, on any Linux system. Right now it only does sysfs-based discovery of block and tty devices, since those are the only types of devices I have on my system. There is a TODO in the script where we would add the other device types.
This commit is contained in:
parent
2d5b68864f
commit
8b94dcd067
68
etc/init.d/udev
Normal file
68
etc/init.d/udev
Normal file
|
@ -0,0 +1,68 @@
|
||||||
|
#! /bin/bash
|
||||||
|
#
|
||||||
|
# random init script to setup /udev
|
||||||
|
#
|
||||||
|
# chkconfig: 2345 20 80
|
||||||
|
# description: manage user-space device nodes in /udev
|
||||||
|
|
||||||
|
. /etc/rc.d/init.d/functions
|
||||||
|
|
||||||
|
udev_dir=/udev
|
||||||
|
sysfs_dir=/sys
|
||||||
|
bin=/sbin/udev
|
||||||
|
|
||||||
|
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
|
||||||
|
# add tty devices
|
||||||
|
for i in ${sysfs_dir}/class/tty/*; do
|
||||||
|
export DEVPATH="/"`echo $i | cut --delimiter='/' --fields=3-`
|
||||||
|
$bin tty
|
||||||
|
done
|
||||||
|
# add block devices and their partitions
|
||||||
|
for i in ${sysfs_dir}/block/*; do
|
||||||
|
export DEVPATH="/"`echo $i | cut --delimiter='/' --fields=3-`
|
||||||
|
$bin block
|
||||||
|
for j in $i/*; do
|
||||||
|
if [ -f $j/dev ]; then
|
||||||
|
export DEVPATH="/"`echo $j | \
|
||||||
|
cut --delimiter='/' --fields=3-`
|
||||||
|
$bin block
|
||||||
|
fi
|
||||||
|
done
|
||||||
|
done
|
||||||
|
# TODO: add other device classes
|
||||||
|
;;
|
||||||
|
stop)
|
||||||
|
# be careful
|
||||||
|
if [ $udev_dir -a "$udev_dir" != "/" ]; then
|
||||||
|
# clear out /udev
|
||||||
|
rm -rf ${udev_dir}/*
|
||||||
|
fi
|
||||||
|
;;
|
||||||
|
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|reload)
|
||||||
|
# nothing to do here
|
||||||
|
;;
|
||||||
|
*)
|
||||||
|
echo "Usage: $0 {start|stop|status}"
|
||||||
|
exit 1
|
||||||
|
esac
|
||||||
|
|
||||||
|
exit 0
|
Loading…
Reference in a new issue