Great work with all the benchmarks! I greatly appreciate your job.
I don't know if I'm doing it wrong but instead of building the OMV image for my board (Orange pi One) I downloaded the pre-built jessie image from armbian website and run the customize-image.sh.template:
mv customize-image.sh.template omv.sh
nano omv.sh # uncomment InstallOpenMediaVault
chmod 700 omv.sh
./omv.sh jessie sun8i orangepione no
Is it equivalent to building the whole image from ground up?