#!/bin/sh

# (C) Copyright 2003 by Gerd v. Egidy <gve@intra2net.com>
# 
# Modified for NexediDLS by Alexandre Bulte <alexandre@bulte.net>
# Updated By Christophe Dumez <christophe@nexedi.com>
#
# PCI autodetect Copyright 2001-2003 by Diego Torres Milano
# PCI autodetect adapted from PXES by Gerd v. Egidy
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as 
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#

MODULES="%(modules)s"
BOOT_PARTITION="%(boot_partition)s"
BOOT_DEVICE="%(boot_device)s"
COMPRESSION="%(compression)s"

for module in $MODULES; do
	echo Inserting /lib/$module.ko...
	insmod /lib/$module.ko
done

echo "Mounting /proc filesystem"
mount -n -t proc /proc /proc

echo "Mounting /sys filesystem..."
mount -n -t sysfs none /sys

echo "Starting udev..."
udevstart || echo "UDEV FAILED"
echo -n /sbin/hotplug > /proc/sys/kernel/hotplug

echo "Bringing up loopback interface"
ifconfig lo 127.0.0.1 up
route add -net 127.0.0.0 netmask 255.0.0.0 lo
    
echo "Configuring eth0"
udhcpc -n -q -i eth0 -s /bin/udhcpc.script
if [ $? -ne 0 ]; then
    echo "ERROR: can't get DHCP lease"
    exit 0
fi

# load DHCP parameters
. /etc/udhcpc-eth0.info

# Location of thin client image on DLS (NFS)
ROOTPATH=/mnt/storage/var/tc_nfsroot

echo "Mounting nfs root filesystem"
if ! echo $ROOTPATH | grep -q ":/" ; then
	# we haven't got a full path, use next-server
	ROOTPATH="${NEXTSERVER}:${ROOTPATH}"
fi
echo "Display ROOTPATH : $ROOTPATH"

if echo $ROOTPATH | grep -q "," ; then
	# we have options
	NFSOPTIONS=`echo $ROOTPATH | sed -e "s/\(.*\)\(,.*\)/\2/"`
	ROOTPATH=`echo $ROOTPATH | sed -e "s/\(.*\)\(,.*\)/\1/"`
fi

echo "Mounting root filesystem"
mount -rw -t tmpfs none /sysroot/

echo "Mounting NFS root-base"
mkdir /sysroot/nfsroot
mount -n -o "ro,nolock${NFSOPTIONS}" -t nfs "$ROOTPATH" /sysroot/nfsroot
if [ $? -ne 0 ]; then
    echo "ERROR: can't mount root filesystem via NFS"
    exit 0
fi

echo "Mounting thin client sqfs image"
mkdir /sysroot/tcroot
mount -t squashfs -o loop /sysroot/nfsroot/tc.sqfs /sysroot/tcroot

echo "Setting root symlinks"
cd /sysroot

ln -s ./tcroot/bin
ln -s ./tcroot/boot
#ln -s ./tcroot/etc
#ln -s ./tcroot/home
# We need rw home for wengo <christophe@nexedi.com>
mkdir ./home 2>/dev/null
cp -rf ./tcroot/home/wengo ./home/
# End of Wengo Part
ln -s ./tcroot/lib
#ln -s ./tcroot/mnt
ln -s ./tcroot/opt
ln -s ./tcroot/root
ln -s ./tcroot/sbin
#ln -s ./tcroot/sys
ln -s ./tcroot/usr

# Prevent fsck from running.
rm -f /sysroot/.autofsck
cp -f /dev/null /sysroot/fastboot

echo "Handling special directories"
rm -f /sysroot/initrd
mkdir /sysroot/initrd
rm -f /sysroot/tmp
mkdir /sysroot/tmp
rm -f /sysroot/proc
mkdir /sysroot/proc

echo "Copying /var"
rm -f /sysroot/var
mkdir /sysroot/var
cp -a /sysroot/tcroot/var /sysroot
cp /etc/resolv.conf /sysroot/var/resolv.conf

echo "Copying /dev"
#ls /sysroot/tcroot/dev
cp -a /dev /sysroot
#cp -a /sysroot/tcroot/dev /sysroot

echo "Copying /etc"
rm -f /sysroot/etc
mkdir /sysroot/etc
cp -a /sysroot/tcroot/etc /sysroot

echo 0x0100 > /proc/sys/kernel/real-root-dev

echo "Unmounting temporary mounts"
umount /proc
umount /sys

echo "Changing to new NFS root"
pivot_root /sysroot /sysroot/initrd

chown -R wengo:wengo /home/wengo

echo "Mounting /proc filesystem"
mount -n -t proc /proc /proc

# bug fix by Christophe Dumez <christophe@nexedi.com>
mkdir /sys
rm -rf /mnt 2>/dev/null
mkdir /mnt

echo "Using local config.tgz / config.sh"
MOUNT_DIR=/nfsroot
if test -f $MOUNT_DIR/config.tgz; then
   (cd /; tar zxvf $MOUNT_DIR/config.tgz)
fi
if test -f $MOUNT_DIR/config.sh; then
   (cd /; /bin/sh $MOUNT_DIR/config.sh)
fi