D.3. /etc/rc.d/init.d/mountvirtfs

#!/bin/sh
########################################################################
# Begin mountvirtfs
#
# Description : Mount proc, sysfs, and run
#
# Authors     : Gerard Beekmans - gerard@linuxfromscratch.org
#               DJ Lucas - dj@linuxfromscratch.org
# Update      : Bruce Dubbs - bdubbs@linuxfromscratch.org
#
# Version     : LFS 7.0
#
########################################################################

### BEGIN INIT INFO
# Provides:            mountvirtfs
# Required-Start:      $first
# Should-Start:
# Required-Stop:
# Should-Stop:
# Default-Start:       S
# Default-Stop:
# Short-Description:   Mounts /sys and /proc virtual (kernel) filesystems.
#                      Mounts /run (tmpfs) and /dev (devtmpfs).
# Description:         Mounts /sys and /proc virtual (kernel) filesystems.
#                      Mounts /run (tmpfs) and /dev (devtmpfs).
# X-LFS-Provided-By:   LFS
### END INIT INFO

. /lib/lsb/init-functions

case "${1}" in
   start)
      # Make sure /run is available before logging any messages
      if ! mountpoint /run >/dev/null; then
         mount /run || failed=1
      fi

      mkdir -p /run/lock /run/shm
      chmod 1777 /run/shm /run/lock

      log_info_msg "Mounting virtual file systems: ${INFO}/run" 

      if ! mountpoint /proc >/dev/null; then
         log_info_msg2 " ${INFO}/proc"
         mount -o nosuid,noexec,nodev /proc || failed=1
      fi

      if ! mountpoint /sys >/dev/null; then
         log_info_msg2 " ${INFO}/sys" 
         mount -o nosuid,noexec,nodev /sys || failed=1
      fi

      if ! mountpoint /dev >/dev/null; then
         log_info_msg2 " ${INFO}/dev" 
         mount -o mode=0755,nosuid /dev  || failed=1
      fi

      ln -sfn /run/shm /dev/shm
      
      (exit ${failed})
      evaluate_retval
      exit $failed
      ;;

   *)
      echo "Usage: ${0} {start}"
      exit 1
      ;;
esac

# End mountvirtfs
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