Installing on a Qnap NAS & SSD?

Hello

I have a qnap TS-251 2-Bay (x64 dual core celeron) 2GB RAM (expandable to 8GB). It also has a fixed DOM 512MB. I plan to install OMV.

Wondering about best way to install. I have a 240GB SSD drive and 3TB HDD. From what I understand OMV OS would use up the whole SSD which seems a bit of waste of space.

The NAS can boot from a USB 3.0, so the OS could be installed on that - but would it be too slow to run?

Is there method that utilizes some of the SSD as the install media? Or another approach?

Thanks for any advice

Zitat von macom

Or you install Debian first and then OMV on top of it.
This now very easy: Install OMV5 via command line over Debian 10

Thanks. I realised I'll have to install debian first, as for the NAS, need to locate the bootloader on the USB (else it'll boot via the existing DOM).

Though how ready is OMV5? I'm not clear if existing plugins can be used.

Or should install Debian Stretch, and then OMV4, assuming this is straightforward?

Thanks.
Just to check, for a x64 and installing OMV5, do I need to modify the script in anyway?