debian/src/initscripts/etc/init.d/mountdevsubfs.sh

   1 #! /bin/sh
   2 ### BEGIN INIT INFO
   3 # Provides:          mountdevsubfs
   4 # Required-Start:    mountkernfs
   5 # Required-Stop:
   6 # Should-Start:      udev
   7 # Default-Start:     S
   8 # Default-Stop:
   9 # Short-Description: Mount special file systems under /dev.
  10 # Description:       Mount the virtual filesystems the kernel provides
  11 #                    that ordinarily live under the /dev filesystem.
  12 ### END INIT INFO
  13 #
  14 # This script gets called multiple times during boot
  15 #
  16
  17 PATH=/sbin:/bin
  18 TTYGRP=5
  19 TTYMODE=620
  20 [ -f /etc/default/devpts ] && . /etc/default/devpts
  21
  22 TMPFS_SIZE=
  23 [ -f /etc/default/tmpfs ] && . /etc/default/tmpfs
  24
  25 KERNEL="$(uname -s)"
  26
  27 . /lib/lsb/init-functions
  28 . /lib/init/mount-functions.sh
  29
  30 do_start () {
  31         #
  32         # Mount a tmpfs on /dev/shm
  33         #
  34         SHM_OPT=
  35         [ "${SHM_SIZE:=$TMPFS_SIZE}" ] && SHM_OPT=",size=$SHM_SIZE"
  36         domount tmpfs shmfs /dev/shm tmpfs -onosuid,nodev$SHM_OPT
  37
  38         #
  39         # Mount /dev/pts. Create master ptmx node if needed.
  40         #
  41         # As of 2.5.68, devpts is not automounted when using devfs. So we
  42         # mount devpts if it is compiled in (older devfs didn't require it
  43         # to be compiled in at all).
  44         #
  45         if [ "$KERNEL" = Linux ]
  46         then
  47                 #
  48                 # Since kernel 2.5.something, devfs doesn't include
  49                 # a standard /dev/pts directory anymore. So if devfs
  50                 # is mounted on /dev we need to create that directory
  51                 # manually.
  52                 #
  53                 if [ ! -d /dev/pts ]
  54                 then
  55                         if grep -qs '/dev devfs' /proc/mounts
  56                         then
  57                                 mkdir --mode=755 /dev/pts
  58                                 [ -x /sbin/restorecon ] && /sbin/restorecon /dev/pts
  59                         fi
  60                 fi
  61                 if [ -d /dev/pts ]
  62                 then
  63                         if [ ! -c /dev/ptmx ]
  64                         then
  65                                 mknod --mode=666 /dev/ptmx c 5 2
  66                                 ES=$?
  67                                 if [ "$ES" != 0 ]
  68                                 then
  69                                         log_warning_msg "Failed making node /dev/ptmx with error code ${ES}."
  70                                 fi
  71                                 [ -x /sbin/restorecon ] && /sbin/restorecon /dev/ptmx
  72                         fi
  73                         domount devpts "" /dev/pts devpts -onoexec,nosuid,gid=$TTYGRP,mode=$TTYMODE
  74                 fi
  75         fi
  76 }
  77
  78 case "$1" in
  79   "")
  80         echo "Warning: mountdevsubfs should be called with the 'start' argument." >&2
  81         do_start
  82         ;;
  83   start)
  84         do_start
  85         ;;
  86   restart|reload|force-reload)
  87         echo "Error: argument '$1' not supported" >&2
  88         exit 3
  89         ;;
  90   stop)
  91         # No-op
  92         ;;
  93   *)
  94         echo "Usage: mountdevsubfs [start|stop]" >&2
  95         exit 3
  96         ;;
  97 esac