I have an old Dell Optiplex 745 SFF that I want to use as a Plex server. It has USB 2.0 ports, one available SATA connection, and one PCIe slot (x16). I'd like to use the SATA connection for a 2 TB HDD to hold my media.
I could run Ubuntu from a flash drive in one of the USB 2.0 ports, but that's slow. I can install an NVME SSD, on a PCIe adapter, in the PCIe slot, but that's not bootable.
Is there a way to install and run Ubuntu on the NVME, but use the USB stick to boot it?