#!/bin/sh
# This script configures support for ethernet cards needed during
# installation for an NFS install.

echo
echo "Network support for NFS install, 17-May-2002 volkerdi@slackware.com"
echo

# To use a different floppy drive, set this variable first.
if [ "$FLOPPY" = "" ]; then
  FLOPPY="/dev/fd0"
fi
USEDFLOP=false

# Make a mount directory:
mkdir -p /network

# First, we need to mount the network supplemental disk.
while [ 0 ]; do
  if [ -r /network/scripts/network.sh ]; then
    umount /network
  fi

  unset UMOUNTCDROM

  echo -n "Searching for network.dsk in /cdrom/isolinux/... "
  if [ -r /cdrom/isolinux/network.dsk ]; then
    mount -o loop -o ro /cdrom/isolinux/network.dsk /network
    echo "found."
    break
  else
    echo "not found."
  fi

  echo -n "Searching for network.dsk in /cdrom/rootdisks/... "
  if [ -r /cdrom/rootdisks/network.dsk ]; then
    mount -o loop -o ro /cdrom/rootdisks/network.dsk /network
    echo "found."
    break
  else
    echo "not found."
  fi

  echo "Attempting to mount CD-ROM..."

  # IDE device search:
  for device in \
    /dev/hdd /dev/hdc /dev/hdb /dev/hda /dev/hde /dev/hdf /dev/hdg /dev/hdh \
    ; do
    mount -o ro -t iso9660 $device /var/log/mount 1> /dev/null 2> /dev/null
    if [ $? = 0 ]; then
      UMOUNTCDROM=$device
      break
    fi
  done
  # SCSI device search:
  if [ "$UMOUNTCDROM" = "" ]; then
    for device in \
      /dev/sr0 /dev/sr1 /dev/sr2 /dev/sr3 \
      ; do
      mount -o ro -t iso9660 $device /var/log/mount 1> /dev/null 2> /dev/null
      if [ $? = 0 ]; then
        UMOUNTCDROM=$device
        break
      fi
    done
  fi
  # Long shot:
  if [ "$UMOUNTCDROM" = "" ]; then
    for device in \
      /dev/pcd0 /dev/pcd1 /dev/pcd2 /dev/pcd3 \
      ; do
      mount -o ro -t iso9660 $device /var/log/mount 1> /dev/null 2> /dev/null
      if [ $? = 0 ]; then
        UMOUNTCDROM=$device
        break
      fi
    done
  fi

  echo -n "Searching for network.dsk in /cdrom/isolinux/... "
  if [ -r /cdrom/isolinux/network.dsk ]; then
    mount -o loop -o ro /cdrom/isolinux/network.dsk /network
    echo "found."
    break
  else
    echo "not found."
  fi

  echo -n "Searching for network.dsk in /cdrom/rootdisks/... "
  if [ -r /cdrom/rootdisks/network.dsk ]; then
    mount -o loop -o ro /cdrom/rootdisks/network.dsk /network
    echo "found."
    break
  else
    echo "not found."
  fi

  echo
  echo "Loading network.dsk from floppy disk."
  echo
  echo "Please insert the network supplemental diskette (network.dsk), "
  echo -n "and hit [enter] to continue."
  read inputjunk;
  echo
  mount -t vfat $FLOPPY /network
  if [ ! -r /network/scripts/network.sh ]; then
    echo "ERROR:  /network/scripts/network.sh not found."
    echo
    echo "This does not appear to be the correct disk.  Please make sure"
    echo "the network supplemental diskette (network.dsk) is in the floppy"
    echo "drive, and hit enter to continue, or control-c to abort."
    echo
    if mount | fgrep network 1> /dev/null 2> /dev/null ; then
      umount /network
    fi
  else
    # Looks correct, but lets check the kernel version:
    if [ ! -d /network/lib/modules/`uname -r` ]; then
      echo "WARNING:"
      echo "Can't find directory /network/lib/modules/`uname -r` on"
      echo "disk.  This disk may be designed for use with a different Linux"
      echo "kernel version than the one on your bootdisk.  This is the"
      echo "module directory we found:"
      echo "  `echo /network/lib/modules/*`"
      echo "This disk is not likely to work with your kernel."
      echo "Press enter to continue anyway, or Q to quit."
      read inputjunk;
      if [ "$inputjunk" = "q" -o "$inputjunk" = "Q" ]; then
        umount /network
        exit
      fi
    fi
    # If we made it here, then all should be well.
    break
  fi
done

# Now, let's call the network.sh script on the floppy disk to actually
# do most of the work:

if [ -r /network/scripts/network.sh ]; then
  sh /network/scripts/network.sh
fi

# Now, try to make sure that /network gets unmounted...
for try in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ; do
  umount /network
  if mount | grep "on /network " 1> /dev/null 2> /dev/null ; then
    BAD=verybad
  else
    # good!
    break
  fi
  sleep 5
done
rmdir /network

if [ ! "$UMOUNTCDROM" = "" ]; then
  echo "Unmounting CD-ROM..."
  umount /var/log/mount
fi

if [ "$USEDFLOP" = "true" ]; then
  echo
  echo "You may now remove the network supplemental disk."
fi

echo
echo "The next step in your installation may be partitioning your hard drive"
echo "(if you're installing to a Linux partition) with 'fdisk' or 'cfdisk'"
echo "(the menu-driven version of fdisk).  If you already have a partition"
echo "prepared for Linux, run 'setup' to start the installer program."
echo