mirror of
https://git.linuxfromscratch.org/lfs.git
synced 2025-06-19 11:49:20 +01:00
f2ca25f95f
git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@9294 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
81 lines
2.2 KiB
Bash
81 lines
2.2 KiB
Bash
#!/bin/sh
|
|
########################################################################
|
|
# Begin $rc_base/init.d/udev
|
|
#
|
|
# Description : Udev cold-plugging script
|
|
#
|
|
# Authors : Zack Winkles, Alexander E. Patrakov
|
|
#
|
|
# Version : 00.02
|
|
#
|
|
# Notes :
|
|
#
|
|
########################################################################
|
|
|
|
. /etc/sysconfig/rc
|
|
. ${rc_functions}
|
|
|
|
case "${1}" in
|
|
start)
|
|
boot_mesg "Populating /dev with device nodes..."
|
|
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
|
|
|
|
;;
|
|
|
|
*)
|
|
echo "Usage ${0} {start}"
|
|
exit 1
|
|
;;
|
|
esac
|
|
|
|
# End $rc_base/init.d/udev
|