External drives with IncusOS?

IncusOS
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1

Hello!

I recently picked up an external drive enclosure that works over USB4 (terramaster d4 ssd). I have two drives in the enclosure but when I plug it into my computer IncusOS does not see it or the drives.

When I run incus admin os system storage show I see my internal drive, but not the external ones.

When I run incus info --resources I see the USB4/Thunderbolt controller, but I do not see the enclosure nor drives.

I’m wondering if it’s possible for IncusOS to support USB4 enclosures and if anyone has any advice for me. Thank you!

2

They should show up in our storage API if the kernel loaded a functional driver for it.

Can you unplug it and plug it back in, then use incus admin os debug log to see what the system did when it got plugged in?

3

Thanks for that command! So it looks like the device is recognized and then 10s later gets disconnected. It’s stuck in this connect → disconnect loop that goes on forever, here’s a small expert from the logs:

[2026/01/01 09:43:03 EST] kernel: thunderbolt 0-2: new device found, vendor=0xb8 device=0x2463
[2026/01/01 09:43:03 EST] kernel: thunderbolt 0-2: TerraMaster TDAS
[2026/01/01 09:43:04 EST] kernel: thunderbolt 0-0:2.1: new retimer found, vendor=0x7fea device=0x1032
[2026/01/01 09:43:13 EST] kernel: thunderbolt 0-0:2.1: retimer disconnected
[2026/01/01 09:43:13 EST] kernel: thunderbolt 0-2: device disconnected
[2026/01/01 09:43:19 EST] kernel: thunderbolt 0-2: new device found, vendor=0xb8 device=0x2463
[2026/01/01 09:43:19 EST] kernel: thunderbolt 0-2: TerraMaster TDAS
[2026/01/01 09:43:19 EST] kernel: thunderbolt 0-0:2.1: new retimer found, vendor=0x7fea device=0x1032
[2026/01/01 09:43:29 EST] kernel: thunderbolt 0-0:2.1: retimer disconnected
[2026/01/01 09:43:29 EST] kernel: thunderbolt 0-2: device disconnected

I know the cable and device are good because it works fine on another machine (different OS). I suspect this could be a BIOS issue though so my next step will be to update that.

PS: Thanks so much for IncusOS. I’m a software developer and I use it to launch new dev VMs/containers and it’s been working out so well for me!

4

Alright I updated the BIOS and that didn’t work. I also tried the exact same hardware running Ubuntu and ran into similar issues. I’m pretty sure this is a hardware issue and problem with my USB4 controller.

Thanks for your help getting me that debug command.