#!/bin/sh -v
# $Id: zfs_install,v 1.3 2012/12/01 14:57:30 root Exp root $

# Variables
GEOM=ada0
POOL=zroot
POOL_CACHE=/tmp/zpool.cache
MNT=/mnt
BACKUP_FBSD=/media/hummingbird.tar.gz

gpart backup $GEOM > /tmp/geom_backup_`date "+%s"`
gpart destroy -F $GEOM
gpart create -s gpt $GEOM
gpart add -t freebsd-boot -a 4k -s 64k -l boot0 $GEOM
gpart add -t freebsd-swap -a 4k -s 4G -l swap0 $GEOM
gpart add -t freebsd-zfs -a 4k -l zroot0 $GEOM
gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 $GEOM

#kldload opensolaris
#kldload zfs

zpool create -f -o altroot=$MNT -o cachefile=$POOL_CACHE $POOL $GEOM\p3
zfs set checksum=fletcher4 $POOL
zfs create -o compression=on -o exec=on -o setuid=off $POOL/tmp
chmod 1777 $MNT/tmp
zfs create $POOL/usr
zfs create $POOL/usr/local
zfs create $POOL/home
zfs create -o compression=lzjb -o setuid=off $POOL/usr/ports
zfs create -o compression=off -o exec=off -o setuid=off $POOL/usr/ports/distfiles
zfs create -o compression=off -o exec=off -o setuid=off $POOL/usr/ports/package
zfs create -o compression=lzjb -o exec=off -o setuid=off $POOL/usr/src
zfs create $POOL/var
zfs create -o compression=lzjb -o exec=off -o setuid=off $POOL/var/crash
zfs create -o exec=off -o setuid=off $POOL/var/db
zfs create -o compression=lzjb -o exec=on -o setuid=off $POOL/var/db/pkg
zfs create -o exec=off -o setuid=off $POOL/var/empty
zfs create -o compression=lzjb -o exec=off -o setuid=off $POOL/var/log
zfs create -o compression=gzip -o exec=off -o setuid=off $POOL/var/mail
zfs create -o exec=off -o setuid=off $POOL/var/run
zfs create -o compression=lzjb -o exec=on -o setuid=off $POOL/var/tmp
chmod 1777 /mnt/var/tmp
tar -xzvf $BACKUP_FBSD -C /
echo zfs_enable=\"YES\" >> $MNT/etc/rc.conf
echo zfs_load=\"YES\" >> $MNT/boot/loader.conf
echo vfs.root.mountfrom=\"zfs:$POOL\" >> $MNT/boot/loader.conf
mv $MNT/etc/fstab $MNT/etc/fstab_backup
echo /dev/$GEOM\p2  none    swap    sw 0 0 > $MNT/etc/fstab

zfs unmount -af
zpool export $POOL
zpool import -o cachefile=$POOL_CACHE -o altroot=$MNT $POOL
zfs set mountpoint=/ $POOL
zpool set bootfs=$POOL $POOL
cp $POOL_CACHE $MNT/boot/zfs/
zfs unmount -af
zpool set cachefile='' $POOL
zfs set mountpoint=legacy $POOL
zfs set mountpoint=/tmp $POOL/tmp
zfs set mountpoint=/usr $POOL/usr
zfs set mountpoint=/var $POOL/var
zfs set mountpoint=/home $POOL/home
zfs set readonly=on $POOL/var/crash