#!/bin/sh

MFDISKSIZE=16m
MDNAME=mdisk.img
FAKEROOT=fakeroot
DISKSIZE=32768
BOOTIMG=bootdisk.img
VND=/dev/vnd0
BOOTDISK=bootdisk
KERNEL=LIVEKEY
KERNDIR=/usr/src/sys/arch/i386/compile/${KERNEL}

# set image ID
IMGID=`date +"%Y%m%d%H%M"`
sed -E s/Image\ ID.*/Image\ ID\:\ ${IMGID}\"/ ${FAKEROOT}/etc/rc > ${FAKEROOT}/etc/rc.XXX
mv ${FAKEROOT}/etc/rc.XXX ${FAKEROOT}/etc/rc

# generate RAMDISK and push it into the kernel

rm -f netbsd
cp ${KERNDIR}/netbsd .
makefs -s ${MFDISKSIZE} -t ffs ${MDNAME} ${FAKEROOT}
mdsetimage netbsd ${MDNAME}
echo ">> compressing kernel..."
gzip -9 netbsd
mv netbsd.gz netbsd

echo ">> kernel generated."

# this one's taken from http://eggplant.ddo.jp/www/pukiwiki/
echo "miniroot:\
:ty=floppy:se#512:nt#1:rm#3600:ns#${DISKSIZE}:nc#1:\
:pa#${DISKSIZE}:oa#0:ba#4096:fa#512:ta=4.2BSD:\
:pb#${DISKSIZE}:ob#0:\
:pc#${DISKSIZE}:oc#0:" > miniroot.disktab

dd if=/dev/zero of=${BOOTIMG} count=${DISKSIZE} bs=512
vnconfig -v -c ${VND} ${BOOTIMG}
disklabel -w -f miniroot.disktab ${VND} miniroot
newfs ${VND}a

echo ">> filesystem created."

rm -rf ${BOOTDISK}
mkdir ${BOOTDISK}
mount ${VND}a ${BOOTDISK}

cp /usr/mdec/boot ${BOOTDISK}/boot
cp netbsd.gz ${BOOTDISK}/netbsd
installboot -v -o timeout=5 /dev/rvnd0a /usr/mdec/bootxx_ffsv1

echo ">> MBR installed"

umount ${BOOTDISK}
vnconfig -u ${VND}