I have a similar system. With Raspberry Pi OS, I used their imager to put the OS on an SD card. Booted the Pi5 from that card and manually transferred the file systems to the NVMe drive. I used GPT and have lots of multiboot possibilities via an autoboot.txt file in the firmware filesystem...

rob@d5:~ $ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
nvme0n1 259:0 0 476.9G 0 disk
├─nvme0n1p1 259:1 0 1G 0 part /boot/firmware
├─nvme0n1p2 259:2 0 1G 0 part
├─nvme0n1p3 259:3 0 1G 0 part
├─nvme0n1p4 259:4 0 1G 0 part
├─nvme0n1p5 259:5 0 1G 0 part
├─nvme0n1p6 259:6 0 1G 0 part
├─nvme0n1p7 259:7 0 1G 0 part
├─nvme0n1p8 259:8 0 1G 0 part
├─nvme0n1p9 259:9 0 1G 0 part
├─nvme0n1p10 259:10 0 8G 0 part [SWAP]
├─nvme0n1p11 259:11 0 31G 0 part /
├─nvme0n1p12 259:12 0 31G 0 part
├─nvme0n1p13 259:13 0 31G 0 part
├─nvme0n1p14 259:14 0 31G 0 part
├─nvme0n1p15 259:15 0 31G 0 part
├─nvme0n1p16 259:16 0 31G 0 part
├─nvme0n1p17 259:17 0 31G 0 part
├─nvme0n1p18 259:18 0 31G 0 part
├─nvme0n1p19 259:19 0 31G 0 part
└─nvme0n1p20 259:20 0 180.9G 0 part /Data

-Bob Evans

Can I ask what method you used for installing Linux on it?

I've got an NVMe drive in my pi5 as well, but all of the images I've seen expect to be dd'ed onto the device rather than a traditional install, which makes choosing a different filesystem or using LVM difficult.

I've been planning on sitting down and doing a debootstrap based install at some point, but if you've found something easier I'd love to hear it.

I recently got all the bits so that I can stick a 1TB nvme on my pi5!

it almost makes it feel like a "real" server.

I'll probably bring the whole contraption with me for the next wlug meeting!

Oh and yes.. I'm using ZFS for the filesystem!

Tim.

I am leery of the allegiances of any politician who refers to their constituents as "consumers".