I have a spare Hardkernel eMMC that already has uboot installed.
Would this example install procedure work?
$this->bbcode_second_pass_code('', 'odroid:$ sudo dd if=ubuntu-15.10-mate-odroid-xu3-20160114.img of=/dev/path/of/card bs=1M conv=fsync
odroid:$ sync
Example Path:
/dev/sdd')
replacing ubuntu with the ALARM image.