#!/bin/bash
CD=/media/cdrom
#CD=/data/srv/tftp/live
DESTCD=/data/srv/tftp/CD
DEST=/data/srv/tftp/masterbuild
#MODULES=$DESTCD/MythVantage/base/

#ONLY SUPPORTS ETH0
myip=`ifconfig  | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f2 | awk '{ print $1}'|head -n1`
if [ x$myip = x ]
then
    echo "couldn't find a ipaddress to use for NFS server"
fi


mkdir -p $DESTCD
mkdir -p $DEST

mount $CD
status=0
if [ -f $CD/system.sqf ]
then
    status=0
else
    status=1
    echo "couldn't find system.sqf"
    exit 1
fi

if [ x$status = x0 ]
then
    echo "copying to disk"
    cp -rvp $CD/*.sqf  $DESTCD
    cp -rvp $CD/overlay.ovl $DESTCD
    echo "creating master copy at $DESTCD"
    unsquashfs -f -d /$DEST $DESTCD/system.sqf
    cd $DEST
    lzop -d < $DESTCD/overlay.ovl |tar -xf -
    cp -rp overlay/etc/* etc/
    cd -

        for i in sys proc dev tmp
        do
            mkdir $DEST/$i
        done
        chmod 777 /$DEST/tmp
        mknod $DEST/dev/null c 1 3
        mknod $DEST/dev/null c 1 5
        mknod $DEST/dev/console c 5 1
        chmod +s $DEST/usr/bin/Xorg
        chmod +s $DEST/usr/bin/crontab
        chmod +s $DEST/usr/bin/sudo
        chmod +s $DEST/bin/mount
fi

if [ ! -f $DEST/etc/fstab.bak ]
then
    cp $DEST/etc/fstab $DEST/etc/fstab.bak
fi

tac $DEST/etc/fstab.bak|tail +4|tac  > $DEST/etc/fstab
echo "$myip:/data/srv/tftp/masterbuild / nfs" >> $DEST/etc/fstab

grep -q "/data/srv/tftp/masterbuild" /etc/exports
status=$?
if [ ! $status = 0 ]
then
    echo "adding masterbuild to nfs exports"
    echo "/data/srv/tftp/masterbuild  *(rw,no_root_squash,anonuid=1000,anongid=1000)" >> /etc/exports
    exportfs -arv
fi

echo "configuring the kernel"
sed -ie 's/^MODULES=.*$/MODULES="nfs"/g' $DEST/etc/mkinitcpio.conf
sed -ie 's/^HOOKS=.*$/HOOKS="base net udev autodetect pata scsi sata filesystems"/g' $DEST/etc/mkinitcpio.conf
chroot $DEST mkinitcpio -p kernel26

#change rc.local for masterbuild
cd $DEST/etc
patch   <<EOF
--- rc.local.orig       2008-09-27 09:17:42.000000000 -0500
+++ rc.local    2008-09-27 09:21:47.000000000 -0500
@@ -2,6 +2,9 @@
 . /etc/profile
 .  ${MV_ROOT}/bin/install_functions.sh
 #install initial database
+rm -f /etc/sysconfig
+mysql  -c "drop database mythconverg"
+pacman -R --noconfirm mythdb-initial 2>/dev/null
 pacman -S --noconfirm mythdb-initial 2>/dev/null

 init_network

EOF

cd -



echo "copy in modules for net install"
#copy in the modules/.livesys/medium/system.sqf
mkdir -p $DEST/.livesys/medium
cp $DESTCD/*  $DEST/.livesys/medium/