FreeBSD kernel, rootfs generation script (useful for running freebsd on qumu with MALTA emulation)

malta.sh

#!/bin/sh
set -e

export TARGET=mips
export TARGET_ARCH=mips
export KERNCONF=MALTA
export DESTDIR=/nfsroot/$TARGET.$TARGET_ARCH
export KERNDIR=/tftpboot/$TARGET.$TARGET_ARCH
export IMAGEDIR=/images

export WERROR=
export NO_CLEAN=yes

make -C /usr/src buildworld buildkernel

mkdir -p $DESTDIR
mkdir -p $KERNDIR
mkdir -p $IMAGEDIR
make -C /usr/src installworld installkernel distribution
echo "/dev/ada0	/	ffs	rw	0	1" > $DESTDIR/etc/fstab
echo 'hostname="malta.local"' > $DESTDIR/etc/rc.conf

rm -f $KERNDIR/$KERNCONF
ln -s $DESTDIR/boot/kernel $KERNDIR/$KERNCONF

rm -f $IMAGEDIR/FreeBSD-$KERNCONF.$TARGET.$TARGET_ARCH.kernel
ln -s $KERNDIR/$KERNCONF/kernel $IMAGEDIR/FreeBSD-$KERNCONF.$TARGET.$TARGET_ARCH.kernel

portsnap -d $DESTDIR/var/db/portsnap -p $DESTDIR/usr/ports fetch
if [ ! -d $DESTDIR/usr/ports ]; then
	portsnap -d $DESTDIR/var/db/portsnap -p $DESTDIR/usr/ports extract
else
	portsnap -d $DESTDIR/var/db/portsnap -p $DESTDIR/usr/ports update
fi

rm -f $IMAGEDIR/FreeBSD-$TARGET.$TARGET_ARCH.rootfs
makefs -t ffs -B be -b 50% -f 50% $IMAGEDIR/FreeBSD-$TARGET.$TARGET_ARCH.rootfs $DESTDIR

I am sorry @cyberkulebyaka but this is from a different lifetime for me, I literally have no idea what was going on whenever I created this gist. I'd suggest asking in the FreeBSD mailing lists regarding this one, sorry :(