#  Convert OpenBSD i386 to amd64

# WARNING: this is a bad idea and is not supported in any way
# this has only been tested on 6.4

# /dev/diskmap is different between i386 and amd64
# verify on a amd64 system the device and create it
cd /dev
rm diskmap
mknod -m 0640 diskmap c 90 0

# copy kernel files
cd /usr/rel    # where you put the release files
ln -f /bsd /obsd && cp bsd.mp /nbsd && mv /nbsd /bsd
cp bsd.rd /
cp bsd /bsd.sp

# create kernel checksum
sha256 -h /var/db/kernel.SHA256 /bsd 

cp /sbin/reboot /sbin/oreboot
cp /usr/sbin/installboot /usr/sbin/oinstallboot

# unpack the sets
tar -C / -xzphf xshare64.tgz
tar -C / -xzphf xserv64.tgz
tar -C / -xzphf xfont64.tgz
tar -C / -xzphf xbase64.tgz
tar -C / -xzphf man64.tgz
tar -C / -xzphf game64.tgz
tar -C / -xzphf comp64.tgz
tar -C / -xzphf base64.tgz    # Install last!

/usr/sbin/oinstallboot sd0
/sbin/oreboot

# after reboot, ensure all device files are correct
cd /dev
./MAKEDEV all


# reinstall packages with the amd64 version
pkg_add -D installed -u

# reboot one last time
reboot