#!/bin/sh
# obj: part vultr manually
# 2021jan: FreeBSD 12.1 need swap and zfs
# https://wiki.freebsd.org/RootOnZFS/GPTZFSBoot

gpart create -s GPT vtbd0

#Legacy Boot:
gpart add -a 4k -s 512K -t freebsd-boot vtbd0
gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 vtbd0

#Create Partitions
gpart add -a 1m -s 4G -t freebsd-swap -l swap0 vtbd0
gpart add -a 1m -t freebsd-zfs -l disk0 vtbd0

#Create the Pool
mount -t tmpfs tmpfs /mnt
zpool create -o altroot=/mnt zroot vtbd0p3

#Create ZFS file system hierarchy
zfs set compress=on zroot

zfs create -o mountpoint=none zroot/ROOT
zfs create -o mountpoint=/ -o canmount=noauto zroot/ROOT/default
mount -t zfs zroot/ROOT/default /mnt

zfs create -o mountpoint=/tmp  -o exec=on      -o setuid=off	zroot/tmp
zfs create -o canmount=off -o mountpoint=/usr zroot/usr
zfs create 							zroot/usr/home
zfs create                     -o exec=off     -o setuid=off	zroot/usr/src
zfs create							zroot/usr/obj
zfs create -o mountpoint=/usr/ports            -o setuid=off	zroot/usr/ports
zfs create                     -o exec=off     -o setuid=off	zroot/usr/ports/distfiles
zfs create                     -o exec=off     -o setuid=off	zroot/usr/ports/packages
zfs create -o canmount=off -o mountpoint=/var			zroot/var
zfs create                     -o exec=off     -o setuid=off	zroot/var/audit
zfs create                     -o exec=off     -o setuid=off	zroot/var/crash
zfs create                     -o exec=off     -o setuid=off	zroot/var/log
zfs create -o atime=on         -o exec=off     -o setuid=off	zroot/var/mail
zfs create                     -o exec=on      -o setuid=off	zroot/var/tmp

ln -s /usr/home /mnt/home
chmod 1777 /mnt/var/tmp
chmod 1777 /mnt/tmp

zpool set bootfs=zroot/ROOT/default zroot

# more to do (check heading ref site)