FreeBSD gmirror setup sata drives

gpart.sh

gpart destroy -F ada0
gpart destroy -F ada1

gpart create -s gpt ada0
gpart create -s gpt ada1

gpart add -s 64k -t freebsd-boot -l boot0 ada0
gpart add -s 64k -t freebsd-boot -l boot1 ada1

gpart add -s 8G -t freebsd-swap -l swap0 ada0
gpart add -s 8G -t freebsd-swap -l swap1 ada1

gpart add -s 10G -t freebsd-ufs -l root0 ada0
gpart add -s 10G -t freebsd-ufs -l root1 ada1

gpart add -s 50G -t freebsd-ufs -l var0 ada0
gpart add -s 50G -t freebsd-ufs -l var1 ada1

gpart add -s 4G -t freebsd-ufs -l tmp0 ada0
gpart add -s 4G -t freebsd-ufs -l tmp1 ada1

gpart add -t freebsd-ufs -l usr0 ada0
gpart add -t freebsd-ufs -l usr1 ada1
 
# install bootcode to disk
gpart bootcode -b /boot/pmbr -p /boot/gptboot -i 1 ada0
gpart bootcode -b /boot/pmbr -p /boot/gptboot -i 1 ada1

gmirror label -h boot /dev/gpt/boot0 /dev/gpt/boot1
gmirror label -h swap /dev/gpt/swap0 /dev/gpt/swap1
gmirror label -h root /dev/gpt/root0 /dev/gpt/root1
gmirror label -h var /dev/gpt/var0 /dev/gpt/var1
gmirror label -h tmp /dev/gpt/tmp0 /dev/gpt/tmp1
gmirror label -h usr /dev/gpt/usr0 /dev/gpt/usr1

kldload geom_mirror

newfs -U -L root /dev/mirror/root
mount /dev/mirror/root /mnt

newfs -U -L var /dev/mirror/var
newfs -U -L tmp /dev/mirror/tmp
newfs -U -L usr /dev/mirror/usr

mkdir /mnt/var /mnt/tmp /mnt/usr
chmod 0000 /mnt/var /mnt/tmp /mnt/usr

mount /dev/mirror/var /mnt/var
mount /dev/mirror/tmp /mnt/tmp
mount /dev/mirror/usr /mnt/usr

chmod 1777 /mnt/tmp

cat > /tmp/bsdinstall_etc/fstab <<EOF
# Device        Mountpoint  FStype  Options Dump    Pass#
/dev/mirror/swap    none        swap    sw  0   0
/dev/mirror/root    /       ufs rw  1   1
/dev/mirror/var     /var        ufs rw  2   2
/dev/mirror/tmp     /tmp        ufs rw  2   2
/dev/mirror/usr     /usr        ufs rw  2   2
EOF