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====== Installing FreeBSD 9 Root on ZFS with less fuss ======

WIP! DO NOT USE UNLESS YOU KNOW WHAT YOU ARE DOING.

Based the 9.0-REL page.

===== Creating a bootable ZFS filesystem =====

<code>
export DISK=mfid0
/etc/rc.d/tmp start
dd if=/dev/zero of=/dev/$DISK bs=1m count=10
gpart create -s gpt $DISK
gpart add -b 34 -s 256 -t freebsd-boot $DISK
gpart add -b 512 -s 32G -t freebsd-swap -l sys-swap0 $DISK
gpart add -t freebsd-zfs -l sys-zfs0 $DISK
gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 $DISK
</code>

<code>
kldload zfs
</code>

  - Create the zfs pool.
Replace mirror as needed, and add all disks that should be part of the pool.

<code>
zpool create -o altroot=/mnt zroot /dev/gpt/sys-zfs0
</code>

===== Installing FreeBSD to the ZFS file system =====

  - Create ZFS filesystem hierarchy\\ \\ 

ZFS apparently requires zroot/usr if I want zroot/usr/local

<code>
zfs create 			-o setuid=off	zroot/tmp
zfs create					zroot/usr
zfs create					zroot/usr/local
zfs create			-o setuid=off	zroot/home
zfs create -o compression=lzjb	-o setuid=off	zroot/usr/ports
zfs create -o compression=off	-o setuid=off	zroot/usr/ports/distfiles
zfs create -o compression=lzjb	-o setuid=off	zroot/usr/src
zfs create 					zroot/usr/obj
zfs create			zroot/var
zfs create			zroot/var/log
zfs create -o setuid=off	zroot/var/tmp
chmod 1777 /mnt/var/tmp /mnt/tmp
</code>

<code>
export DIST=/usr/freebsd-dist
tar -C /mnt -xf ${DIST}/base.txz
tar -C /mnt -xf ${DIST}/games.txz 
tar -C /mnt -xf ${DIST}/kernel.txz 
tar -C /mnt -xf ${DIST}/lib32.txz 

tar -C /mnt -xf ${DIST}/src.txz 
</code>

===== Finishing touches =====

  - Fix zpool cachefile, to be able to boot from the new pool.  Enable ZFS in the startup configuration to mount zfs filesystems on startup.

<code>
echo 'zfs_enable="YES"' >> /mnt/etc/rc.conf
echo 'zfs_load="YES"' >> /mnt/boot/loader.conf
echo 'vfs.root.mountfrom="zfs:zroot"' >> /mnt/boot/loader.conf
mkdir /mnt/etc
cat << EOF > /mnt/etc/fstab
# Device		Mountpoint	FStype	Options	Dump	Pass#
/dev/gpt/sys-swap0	none		swap	sw	0	0
EOF

echo -h > /mnt/boot.config
echo 'console="comconsole"' >> /mnt/boot/loader.conf
echo 'beastie_disable="YES"' >> /mnt/boot/loader.conf 
sed -i "" -e '/tty[du]0/s/off/on/' -e '/tty[du]0/s/dialup/vt100/' /mnt/etc/ttys

echo 'comconsole_speed="115200"' >> /mnt/boot/loader.conf

zfs unmount -a
zpool export zroot
zpool import -o cachefile=/tmp/zpool.cache -o altroot=/mnt zroot
</code>

  - Set mountpoints

<code>
zfs set mountpoint=/ zroot
cp /tmp/zpool.cache /mnt/boot/zfs/
zfs unmount -a
zpool set bootfs=zroot zroot
zpool set cachefile='' zroot
zfs set mountpoint=legacy zroot
zfs set mountpoint=/tmp zroot/tmp
zfs set mountpoint=/usr zroot/usr
zfs set mountpoint=/var zroot/var
zfs set mountpoint=/home zroot/home
</code>

===== UFS =====

<code>
gpart add -s 2G -t freebsd-ufs -l sys-root0 $DISK
gpart add -s 2G -t freebsd-ufs -l sys-root1 $DISK
gpart add -s 15G -t freebsd-ufs -l sys-var $DISK
gpart add -s 15G -t freebsd-ufs -l sys-usr $DISK
gpart add  -t freebsd-ufs -l sys-local0 $DISK
gpart bootcode -b /boot/pmbr -p /boot/gptboot -i 1 $DISK

newfs /dev/gpt/sys-root0
newfs -U /dev/gpt/sys-var
newfs -U /dev/gpt/sys-usr
newfs -U /dev/gpt/sys-local0

mount /dev/gpt/sys-root0 /mnt
mkdir /mnt/usr /mnt/var /mnt/local0
mount /dev/gpt/sys-var /mnt/var
mount /dev/gpt/sys-usr /mnt/usr
mount /dev/gpt/sys-local0 /mnt/local0/
</code>