diff options
Diffstat (limited to 'source.local/a/udev/config/rc.d/rc.udev.new')
| -rw-r--r-- | source.local/a/udev/config/rc.d/rc.udev.new | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/source.local/a/udev/config/rc.d/rc.udev.new b/source.local/a/udev/config/rc.d/rc.udev.new new file mode 100644 index 0000000..2bbd981 --- /dev/null +++ b/source.local/a/udev/config/rc.d/rc.udev.new @@ -0,0 +1,167 @@ +#!/bin/sh +# This is a script to initialize udev, which populates the /dev +# directory with device nodes, scans for devices, loads the +# appropriate kernel modules, and configures the devices. + +PATH="/sbin:/bin" + +. /etc/udev/udev.conf + +# remove trailing slash from udev_root +UDEV_ROOT=$(echo "${udev_root}" |sed 's/\/*$//') + +check_mounted() { + grep -E -q "^[^[:space:]]+ $1 $2" /proc/mounts + return $? +} + +mount_devpts() { + if ! check_mounted $UDEV_ROOT/pts devpts ; then + mkdir $UDEV_ROOT/pts 2> /dev/null + mount -n -o mode=0620,gid=5 -t devpts devpts $UDEV_ROOT/pts + fi +} + +case "$1" in + start) + # Sanity check #1, udev requires that the kernel support devtmpfs: + if ! grep -wq devtmpfs /proc/filesystems ; then + echo "Sorry, but you need devtmpfs support in the kernel to use udev." + echo "Both of these options are needed: CONFIG_DEVTMPFS=y CONFIG_DEVTMPFS_MOUNT=y" + echo + echo "FATAL: Refusing to run /etc/rc.d/rc.udev." + sleep 10 + exit 1 + fi + + # Sanity check #2, udev requires that the kernel support tmpfs: + if ! grep -wq tmpfs /proc/filesystems ; then + echo "Sorry, but you need tmpfs support in the kernel to use udev." + echo + echo "FATAL: Refusing to run /etc/rc.d/rc.udev." + sleep 10 + exit 1 + fi + + # Sanity check #3, make sure that a 2.6.x kernel is new enough: + if [ "$(uname -r | cut -f 1,2 -d .)" = "2.6" ]; then + if [ "$(uname -r | cut -f 3 -d . | sed 's/[^[:digit:]].*//')" -lt "32" ]; then + echo "Sorry, but you need a 2.6.32+ kernel to use this udev." + echo "Your kernel version is only $(uname -r)." + echo + echo "FATAL: Refusing to run /etc/rc.d/rc.udev." + sleep 10 + exit 1 + fi + fi + + # Sanity check #4, make sure the udev package was not removed. If udevd + # is not there, this will also shut off this script to prevent further + # problems: + if [ ! -x /sbin/udevd ]; then + chmod 0644 /etc/rc.d/rc.udev + echo "No udevd daemon found." + echo "Turning off udev: chmod 644 /etc/rc.d/rc.udev" + echo "FATAL: Refusing to run /etc/rc.d/rc.udev." + sleep 10 + exit 1 + fi + + # Disable hotplug helper since udevd listens to netlink: + if [ -e /proc/sys/kernel/hotplug ]; then + echo "" > /proc/sys/kernel/hotplug + fi + + if grep -qw devtmpfs /proc/filesystems ; then + if ! check_mounted $UDEV_ROOT devtmpfs ; then + # umount shm if needed + check_mounted $UDEV_ROOT/shm tmpfs && umount -l $UDEV_ROOT/shm + + # Umount pts if needed, we will remount it later: + check_mounted $UDEV_ROOT/pts devpts && umount -l $UDEV_ROOT/pts + + # Mount tmpfs on $UDEV_ROOT: + mount -n -t devtmpfs devtmpfs $UDEV_ROOT + fi + else + # Mount tmpfs on $UDEV_ROOT: + if ! check_mounted $UDEV_ROOT tmpfs ; then + # umount shm if needed + check_mounted $UDEV_ROOT/shm tmpfs && umount -l $UDEV_ROOT/shm + + # Umount pts if needed, we will remount it later: + check_mounted $UDEV_ROOT/pts devpts && umount -l $UDEV_ROOT/pts + + # Mount tmpfs on $UDEV_ROOT: + # the -n is because we don't want $UDEV_ROOT umounted when + # someone (rc.[06]) calls umount -a + mount -n -o mode=0755 -t tmpfs tmpfs $UDEV_ROOT + + fi + fi + # Mount devpts + mount_devpts + + if ! /sbin/pidof udevd 1>/dev/null 2>/dev/null; then # start udevd + echo "Starting udevd: /sbin/udevd --daemon" + /sbin/udevd --daemon + # Since udev is just now being started we want to use add events: + echo "Triggering udev events: /sbin/udevadm trigger --action=add" + # Call udevtrigger and udevsettle to do the device configuration: + /sbin/udevadm trigger --type=subsystems --action=add + /sbin/udevadm trigger --type=devices --action=add + else # trigger changes for already running udevd + # If the persistent rules files do not exist, trigger an add event: + if [ ! -r /etc/udev/rules.d/70-persistent-net.rules ]; then + # Test that we can actually write to the directory first: + if touch /etc/udev/rules.d/testfile 2> /dev/null ; then + rm -f /etc/udev/rules.d/testfile + # This should add persistent net/cd rules: + echo "Triggering udev to write persistent rules to /etc/udev/rules.d/" + /sbin/udevadm trigger --type=devices --action=add + sleep 3 + fi + fi + # Since udevd is running, most of the time we only need change events: + echo "Triggering udev events: /sbin/udevadm trigger --action=change" + /sbin/udevadm trigger --type=subsystems --action=change + /sbin/udevadm trigger --type=devices --action=change + fi + /sbin/udevadm settle --timeout=120 + ;; + stop) + echo "Stopping udevd is STRONGLY discouraged and not supported." + echo "If you are sure you want to do this, use 'force-stop' instead." + ;; + force-stop) + echo "Stopping udevd" + udevadm control --exit + killall udevd 2>/dev/null + ;; + restart) + echo "Restarting udevd is STRONGLY discouraged and not supported." + echo "If you are sure you want to do this, use 'force-restart' instead." + ;; + force-restart) + echo "Restarting udevd" + udevadm control --exit + sleep 3 + udevd --daemon + ;; + reload) + echo "Reloading udev rules" + udevadm control --reload + cp --preserve=all --recursive --update /lib/udev/devices/* $UDEV_ROOT + ;; + force-reload) + echo "Updating all available device nodes in $UDEV_ROOT" + udevadm control --reload + rm -rf $UDEV_ROOT/.udev $UDEV_ROOT/disk + cp --preserve=all --recursive --update /lib/udev/devices/* $UDEV_ROOT + ;; + + *) + echo "Usage: $0 {start|stop|restart|reload|force-reload}" + exit 1 + ;; +esac |