#!/bin/sh -x

# script to make my bootable CD
# By Jeremy C. Reed
# Last updated on April 25, 2003

# path of the directory tree to be copied into the iso9660 filesystem.
DIRTREE=/backups/netbsd/destdir  ## can be original built by "make build"

if [ -e /usr/src/sys/arch/i386/compile/LIVECD/netbsd ] ; then
  KERNEL=/usr/src/sys/arch/i386/compile/LIVECD/netbsd
else
  echo "kernel missing"
  exit 1
  KERNEL=/backups/netbsd/netbsd
fi
CUSTOM_DIRTREE=/backups/netbsd/mybsd  ## customized or new files

MOUNT=mnt # just a mount point
mkdir -p $MOUNT

# clean out dev/
# init will mount it via MFS and run MAKEDEV
find $DIRTREE/dev/* ! -name "MAKEDEV*" -exec rm -rf -- "{}" \;

# clean out var/run since etc/rc.d/mountcritlocal does same
rm -rf -- $DIRTREE/var/run/*

# empty lastlog and wtmp
cp /dev/null $DIRTREE/var/log/lastlog
cp /dev/null $DIRTREE/var/log/wtmp

# clean up TMP directories
rm -rf -- $DIRTREE/tmp/*
rm -rf $DIRTREE/tmp/.*
find $DIRTREE/var/tmp/* ! -name "vi.recover" -exec rm -rf -- "{}" \;
#rm -rf $DIRTREE/var/tmp/vi.recover/*

# clean out /home/ homes
#rm -rf -- $DIRTREE/home/reed
rm $DIRTREE/home/reed # just a symlink
cp /dev/null $DIRTREE/home/user/.bash_history

# need a kernel at /netbsd or fstat and other tools won't work right
cp -p $KERNEL $DIRTREE
chown root $DIRTREE/netbsd

# custom README text version
lynx -dump $CUSTOM_DIRTREE/root/README.html > $CUSTOM_DIRTREE/root/README
cp $CUSTOM_DIRTREE/root/README.html $DIRTREE/home/user/
cp $CUSTOM_DIRTREE/root/README $DIRTREE/home/user/
chown 1000 $DIRTREE/home/user/README*

# copy new files
(cd $CUSTOM_DIRTREE ; find . | cpio -vupdm $DIRTREE )

# Build boot image
# echo Building boot image ...
dd if=/dev/zero of=myboot.fs count=5760
vnconfig -t floppy288 -v -c /dev/vnd0d myboot.fs || exit
disklabel -rw /dev/vnd0d floppy288 || echo disklabel problem $?
newfs -B le -m 0 -o space -i 204800 -c 80 /dev/rvnd0a floppy288
$DIRTREE/usr/mdec/installboot -v -f $DIRTREE/usr/mdec/biosboot.sym /dev/rvnd0a
mount /dev/vnd0a $MOUNT
gzip -v -c -9 $KERNEL > $MOUNT/netbsd || echo problem with gzip $?
chmod a+x $MOUNT/netbsd
df -k $MOUNT
ls -la $MOUNT
umount $MOUNT
vnconfig -u vnd0d

# build ISO9660

# according to mkhybrid it must be relative to the specified source path
# or it will say: Uh oh, I cant find the boot image!
cp myboot.fs $DIRTREE
# -R instead of -r so attributes are correct
# use -D to get rid of "rr_moved" and allow more ISO9660 6 directory limitation
mkhybrid -o output.iso -b myboot.fs -c boot.catalog -a -l -D -J -R -L $DIRTREE