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D.5. /etc/rc.d/init.d/udev
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Линукс с нуля - Версия 12.2
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Приложение D. Скрипты загрузки и настройки системы-20240825
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<h1 class="sect1">
<a id="udev" name="udev"></a>D.5. /etc/rc.d/init.d/udev
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<pre class="screen">#!/bin/sh
########################################################################
# Begin udev
#
# Description : Udev cold-plugging script
#
# Authors : Zack Winkles, Alexander E. Patrakov
# DJ Lucas - dj@linuxfromscratch.org
# Update : Bruce Dubbs - bdubbs@linuxfromscratch.org
# Xi Ruoyao - xry111@xry111.site
#
# Version : LFS 12.0
#
########################################################################
### BEGIN INIT INFO
# Provides: udev $time
# Required-Start: localnet
# Should-Start: modules
# Required-Stop:
# Should-Stop:
# Default-Start: S
# Default-Stop:
# Short-Description: Populates /dev with device nodes.
# Description: Mounts a tempfs on /dev and starts the udevd daemon.
# Device nodes are created as defined by udev.
# X-LFS-Provided-By: LFS
### END INIT INFO
. /lib/lsb/init-functions
case "${1}" in
start)
log_info_msg "Populating /dev with device nodes... "
if ! grep -q '[[:space:]]sysfs' /proc/mounts; then
log_failure_msg2
msg="FAILURE:\n\nUnable to create "
msg="${msg}devices without a SysFS filesystem\n\n"
msg="${msg}After you press Enter, this system "
msg="${msg}will be halted and powered off.\n\n"
log_info_msg "$msg"
log_info_msg "Press Enter to continue..."
wait_for_user
/etc/rc.d/init.d/halt start
fi
# Start the udev daemon to continually watch for, and act on,
# uevents
SYSTEMD_LOG_TARGET=kmsg /sbin/udevd --daemon
# Now traverse /sys in order to "coldplug" devices that have
# already been discovered
/bin/udevadm trigger --action=add --type=subsystems
/bin/udevadm trigger --action=add --type=devices
/bin/udevadm trigger --action=change --type=devices
# Now wait for udevd to process the uevents we triggered
if ! is_true "$OMIT_UDEV_SETTLE"; then
/bin/udevadm settle
fi
# If any LVM based partitions are on the system, ensure they
# are activated so they can be used.
if [ -x /sbin/vgchange ]; then /sbin/vgchange -a y >/dev/null; fi
log_success_msg2
;;
*)
echo "Usage ${0} {start}"
exit 1
;;
esac
exit 0
# End udev
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