#
# /etc/rc.d/rc.cdrom
# This script searches for a CD-ROM on the known Linux CD devices.
# If one is found, it is mounted under $MOUNTPOINT.
#
# It can make some darn annoying error messages though, so it's no
# longer executable by default.  If you want it on, do this:
#
#   chmod 755 rc.cdrom
#

MOUNTPOINT="/cdrom"
unset SKIP
# If something is already mounted, skip the rest of the tests:
if mount | fgrep "on $MOUNTPOINT " 1> /dev/null 2> /dev/null ; then
  SKIP=1
elif [ ! -d $MOUNTPOINT ]; then
  SKIP=1
fi
# Look for a detected IDE/ATAPI CD-ROM drive.  If we find one, try to mount:
if dmesg | fgrep ATAPI | fgrep CD 1> /dev/null 2> /dev/null ; then
  CD=`dmesg | fgrep ATAPI | fgrep CD | cut -f 1 -d ':' | sed -n "1 p"`
  echo "Kernel detected ATAPI CDROM drive /dev/$CD, checking for a disc:"
  mount /dev/$CD /cdrom -t iso9660
  SKIP=1
fi
# Next, look for and try to mount a SCSI CD-ROM drive:
if [ ! "$SKIP" = "1" ]; then
  if dmesg | fgrep "scsi CD-ROM sr" | cut -d ' ' -f 4 1> /dev/null 2> /dev/null ; then
    CD=`dmesg | fgrep "scsi CD-ROM sr" | cut -d ' ' -f 4 | sed -n "1 p"`
    echo "Kernel detected SCSI CDROM drive /dev/$CD, checking for a disc:"
    mount /dev/$CD /cdrom -t iso9660
    SKIP=1
  fi
fi
# Try loading modules to find a non ATAPI/IDE CD-ROM drive (requires kerneld):
if [ ! "$SKIP" = "1" ]; then
  unset MOUNT
  echo -n "Checking for a non ATAPI/SCSI CD-ROM drive... "
  for device in cdrom pcd0 pcd1 pcd2 pcd3 sonycd cdu535 mcd sbpcd aztcd \
  cm206cd gscd0 mcdx0 mcdx1 optcd0 \
  sjcd lmscd ; do # check for a CD-ROM drive with a disc in it.
    if mount -t iso9660 -o ro /dev/$device $MOUNTPOINT 1> /dev/null 2> /dev/null ; then
      MOUNT=1
      if [ ! "$device" = "cdrom" ]; then
        rm -f /dev/cdrom
        ln -sf /dev/$device /dev/cdrom
      fi
      break;
    fi
    sleep 1 # rapid-fire calls to mount might cause problems
  done
  if [ "$MOUNT" = "1" ]; then # mount successful
    echo "found on /dev/$device."
    if [ -d /cdrom/rootdsks.144 -o -d /cdrom/rootdsks ]; then # Slackware CD-ROM is mounted.
      echo "    Mounting Slackware Linux CD-ROM on $MOUNTPOINT."
    else
      echo "    Mounting ISO9660 CD-ROM on $MOUNTPOINT."
    fi
  else
    echo "no CD found."
  fi
fi