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#!/bin/sh
# Begin $rc_base/init.d/udev
### BEGIN INIT INFO
# Provides: udev
# Required-Start:
# Should-Start: modules
# Required-Stop:
# Should-Stop:
# Default-Start: S
# Default-Stop:
# Short-Description: Populated /dev with device nodes.
# Description: Mounts a tempfs on /dev and starts the udevd daemon.
# Device nodes are created as defined by udev.
# X-LFS-Provided-By: LFS
### END INIT INFO
. /lib/lsb/init-functions
MESSAGE="Populating /dev with device nodes..."
case "${1}" in
start)
if ! grep -q '[[:space:]]sysfs' /proc/mounts; then
echo_failure
boot_mesg -n "FAILURE:\n\nUnable to create" ${FAILURE}
boot_mesg -n " devices without a SysFS filesystem"
boot_mesg -n "\n\nAfter you press Enter, this system"
boot_mesg -n " will be halted and powered off."
boot_mesg -n "\n\nPress Enter to continue..." ${INFO}
boot_mesg "" ${NORMAL}
read ENTER
/etc/rc.d/init.d/halt stop
fi
# Mount a temporary file system over /dev, so that any devices
# made or removed during this boot don't affect the next one.
# The reason we don't write to mtab is because we don't ever
# want /dev to be unavailable (such as by `umount -a').
if ! mountpoint /dev > /dev/null; then
mount -n -t tmpfs tmpfs /dev -o mode=755
fi
if [ ${?} != 0 ]; then
echo_failure
boot_mesg -n "FAILURE:\n\nCannot mount a tmpfs" ${FAILURE}
boot_mesg -n " onto /dev, this system will be halted."
boot_mesg -n "\n\nAfter you press Enter, this system"
boot_mesg -n " will be halted and powered off."
boot_mesg -n "\n\nPress Enter to continue..." ${INFO}
boot_mesg "" ${NORMAL}
read ENTER
/etc/rc.d/init.d/halt stop
fi
# Udev handles uevents itself, so we don't need to have
# the kernel call out to any binary in response to them
echo > /proc/sys/kernel/hotplug
# Copy the only static device node that Udev >= 155 doesn't
# handle to /dev
cp -a /lib/udev/devices/null /dev
# Start the udev daemon to continually watch for, and act on,
# uevents
/sbin/udevd --daemon
# Now traverse /sys in order to "coldplug" devices that have
# already been discovered
/sbin/udevadm trigger --action=add
# Now wait for udevd to process the uevents we triggered
/sbin/udevadm settle
evaluate_retval standard
;;
*)
echo "Usage ${0} {start}"
exit 1
;;
esac
# End $rc_base/init.d/udev
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