SSD issues, recommendations?

Hi first time OMV user (OMV5)

Bought a new case and used some old parts lying around to build new server

My issue was that I tried two different SSDs (Crucial CT250MX200SSD1, and Samsung SSD)

When booting from USB to install OMV5 kept getting message could not find root on SSD drive.

Via the installer there was no available option to go into disk partition functions.

Currently running OS from old 320GB HDD, but wanting to know how to backup OS drive in case that fails?

https://photos.app.goo.gl/SRfV9n9WFu8YmcfC7

Running OS and parity drives off MB SATA connectors

Bought PCI to SATA adapter off Aliexpress to run up to 6 Data drives

Currently running

• 16GB Ram
• 4 x 3TB data drives (from old NAS)
• 2 x 4TB parity drives (new)
• 1 x 320GB OS drive

I would be interested in any links or guides on how to properly setup SSD's or if I'm just missing something.

Regards All.

Thanks for responding,

Its happening during the install process, and yes the only connected devices are a temp monitor the os disk and the usb key with the OMV5 install files. The same process works fine with a spinning disk.

So it never gets past the select the disk the install to and format into two partitions. It starts then I get the error message.

The SSD was connected to the motherbaord sata ports.

The SATA adapter is used for the data drives and they all work fine.

Can anyone point at instructions to swap boot drive. Scenario would be if boot drive fails, would then need to connect data and parity drives to new boot drive.