#!/bin/sh
PATH=/sbin:/bin:/usr/sbin:/usr/bin

#constants
VOLUME=vg1
VOLUMEP=/dev/$VOLUME
IP_FIRST_3_NR=192.168.3
IP_GATEWAY_LAST_NR=1
TMP_MNT=/mnt
DEBIAN_RELEASE=sarge
ARCH=i386
if [ "$1" = "--nice" ]; then
	NICE="--nice"
	shift
else
	NICE=""
fi
UMLUSER=$1
IP_LAST_NR=$2
MEM=$3
DISKSPACE=$4

UMLIP=$IP_FIRST_3_NR.$IP_LAST_NR
PARTITION=$VOLUMEP/$UMLUSER

echo -n "creating partition"
lvcreate -n $UMLUSER -L $DISKSPACE $VOLUME || exit 
mkreiserfs -ff $VOLUMEP/$UMLUSER || exit 
mount $VOLUMEP/$UMLUSER $TMP_MNT || exit
echo "."
echo "bootstrapping debian"
debootstrap --arch $ARCH $DEBIAN_RELEASE $TMP_MNT || exit
echo "."
echo "modifying config"
cd /; tar cf - etc/ssh | (cd $TMP_MNT; tar xf -) ; cd -
cat /etc/apt/sources.list | sed s/sarge/$DEBIAN_RELEASE/g > $TMP_MNT/etc/apt/sources.list 

#fstab
echo "/dev/udb0       /       reiserfs        defaults 0 0" > $TMP_MNT/etc/fstab
echo "proc    /proc   proc    defaults        0       0" >> $TMP_MNT/etc/fstab

#networking
echo "auto lo" >> $TMP_MNT/etc/network/interfaces
echo "iface lo inet loopback" >> $TMP_MNT/etc/network/interfaces
echo "auto eth0" >> $TMP_MNT/etc/network/interfaces
echo "iface eth0 inet static" >> $TMP_MNT/etc/network/interfaces
echo "	address $UMLIP" >> $TMP_MNT/etc/network/interfaces
echo "	netmask 255.255.255.0" >> $TMP_MNT/etc/network/interfaces
echo "	network $IP_FIRST_3_NR.0" >> $TMP_MNT/etc/network/interfaces
echo "	gateway $IP_FIRST_3_NR.$IP_GATEWAY_LAST_NR" >> $TMP_MNT/etc/network/interfaces

#hostname
echo $UMLUSER > $TMP_MNT/etc/hostname

#inittab: ctrl-alt-delete shall halt, disable ttys 3-6
cat $0 | patch -d $TMP_MNT/etc/ inittab

#install ssh
chroot $TMP_MNT apt-get update
chroot $TMP_MNT apt-get install ssh

#deactivate NTPL
chroot $TMP_MNT mv /lib/tls /lib/tls.bak

#set root password
echo "please enter your root password:"
chroot $TMP_MNT passwd

umount $TMP_MNT

#create the user
adduser --no-create-home --ingroup uml-net --disabled-password --quiet $UMLUSER

echo "/etc/init.d/uml-child.sh $NICE $UMLUSER $IP_LAST_NR $MEM $DISKSPACE \$@" > /etc/init.d/uml-$UMLUSER
chmod a+x /etc/init.d/uml-$UMLUSER

echo "To start this instance automatically on boot execute"
echo "update-rc.d uml-$UMLUSER start 99 2 3 4 5 . stop 01 0 1 6 ."
echo "Otherwiste use \"/etc/init.d/uml-$UMLUSER start\" to start the uml child"
echo "and \"/etc/init.d/uml-$UMLUSER stop\" to stop the child"

exit 0
# here starts the patch to inittab

--- inittab	Fri Jan 25 13:53:58 2002
+++ /root/tmp/etc/inittab	Fri Jul  2 19:21:49 2004
@@ -30,7 +30,7 @@
 z6:6:respawn:/sbin/sulogin
 
 # What to do when CTRL-ALT-DEL is pressed.
-ca:12345:ctrlaltdel:/sbin/shutdown -t1 -a -r now
+ca:12345:ctrlaltdel:/sbin/shutdown -t1 -a -h now
 
 # Action on special keypress (ALT-UpArrow).
 #kb::kbrequest:/bin/echo "Keyboard Request--edit /etc/inittab to let this work."
@@ -53,10 +53,10 @@
 #
 1:2345:respawn:/sbin/getty 38400 tty1
 2:23:respawn:/sbin/getty 38400 tty2
-3:23:respawn:/sbin/getty 38400 tty3
-4:23:respawn:/sbin/getty 38400 tty4
-5:23:respawn:/sbin/getty 38400 tty5
-6:23:respawn:/sbin/getty 38400 tty6
+#3:23:respawn:/sbin/getty 38400 tty3
+#4:23:respawn:/sbin/getty 38400 tty4
+#5:23:respawn:/sbin/getty 38400 tty5
+#6:23:respawn:/sbin/getty 38400 tty6
 
 # Example how to put a getty on a serial line (for a terminal)
 #