I'm trying to install OMV 3 on a Raspberry Pi using the image OMV_3_0_88_RaspberryPi_2_3_4.9.41.img.xz. As far as I know, it is suposed to resize the system partition on the first run, and create a third partition for the rest of the sd card. However, my system partition is only 2.6GB on a 8GB sd card, and I don't see a third partition at all.
What may be the problem, and how do I go about re-running the script that does this trick? I did try to re-enable the firstrun and resize2fs services, tried to start them, restarted the system with these enabled - but still no success.