It seems that people are still having problems with the installation process of OMV 3.x (being really REALLY slow) on Intel Apollo Lake platforms. I figure I should write this down so people don’t have to get their hands dirty moving drives around/changing bios settings like crazy just to get through the installation.
I guesse the problems were caused by both the iGPU and the power management, so I tried to change some of the boot parameters of the installer, with a ASRock J3455-ITX board (nothing's attached to the board besides two memory sticks, a 64G SSD, a VGA monitor and a USB keyboard):
1. change "vga=xxx" to "vga=normal" followed by "fb=false"
2. add "acpi=off" after "fb=false"
Well you won't have a nicely-placed UI with "vga=normal" and "fb=false" but the UI will still be usable.
I only tested with all three modifications in place and they granted me a nice and easy installation but I'm thinking "acpi=off" along should do the trick... you are welcome to try it out.
The installer was trying to configure the NICs when I started writing this and by now the installation is done, so you have some idea about how smooth things can be.