[SOLVED] Wandboard external root (SATA)

[opotonil]

Does anybody know how to setup a wandboard to have its root be on the external drive?

After update uboot-wandboard-quad to version 2015.04-1, this does not work:
$this->bbcode_second_pass_code('', '
# cat /boot/uEnv.txt
mmcroot=/dev/sda1 rw rootwait
')

----- EDITED -----

Now is:
$this->bbcode_second_pass_code('', '
# cat /boot/uEnv.txt
root=/dev/sda1 rw rootwait
')