bootscripts/lfs/init.d/udev_retry

   1 #!/bin/sh
   2 ########################################################################
   3 # Begin udev_retry
   4 #
   5 # Description : Udev cold-plugging script (retry)
   6 #
   7 # Authors     : Alexander E. Patrakov
   8 # Update      : Bruce Dubbs - bdubbs@linuxfromscratch.org
   9 #
  10 # Version     : LFS 7.0
  11 #
  12 ########################################################################
  13
  14 ### BEGIN INIT INFO
  15 # Provides:            udev_retry
  16 # Required-Start:      udev
  17 # Should-Start:        $local_fs
  18 # Required-Stop:
  19 # Should-Stop:
  20 # Default-Start:       S
  21 # Default-Stop:
  22 # Short-Description:   Replays failed uevents and creates additonal devices.
  23 # Description:         Replays any failed uevents that were skipped due to
  24 #                      slow hardware initialization, and creates those needed
  25 #                      device nodes
  26 # X-LFS-Provided-By:   LFS
  27 ### END INIT INFO
  28
  29 . /lib/boot/functions
  30
  31 case "${1}" in
  32    start)
  33       boot_mesg "Retrying failed uevents, if any..."
  34
  35       RUNDIR=$(/sbin/udevadm info --run)
  36       # From Debian: "copy the rules generated before / was mounted
  37       # read-write":
  38
  39       for file in ${RUNDIR}/tmp-rules--*; do
  40          dest=${file##*tmp-rules--}
  41          [ "$dest" = '*' ] && break
  42          cat $file >> /etc/udev/rules.d/$dest
  43          rm -f $file
  44       done
  45
  46       # Re-trigger the failed uevents in hope they will succeed now
  47       /sbin/udevadm trigger --type=failed --action=add
  48
  49       # Now wait for udevd to process the uevents we triggered
  50       /sbin/udevadm settle
  51       evaluate_retval
  52       ;;
  53
  54    *)
  55       echo "Usage ${0} {start}"
  56       exit 1
  57       ;;
  58 esac
  59
  60 # End udev_retry