AMD EPYC Server ROMED8-2T

tickzip · April 12, 2026, 7:52am

Since my server was scheduled to be taken down for a firmware update, I decided to take the opportunity to try out Sculpt OS on bare-metal server hardware. Given the recent discussions about running Sculpt OS in a headless configuration, I was intrigued enough to give it a go - just for fun.
This was tested using the latest Sculpt OS 25.10 release on the NOVA kernel.

Hardware

Motherboard: ROMED8-2T (pictured below)
- 2x Intel X550-AT2 NIC
- ROMED8-2T motherboard1200×1000 361 KB
CPU: AMD EPYC 7K62
Graphics: ASPEED AST2500 BMC

Output of lspci -tv

[22:06 xcp-ng-epyc ~]# lspci -tv
-+-[0000:c0]-+-00.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse Root Complex
 |           +-00.2  Advanced Micro Devices, Inc. [AMD] Starship/Matisse IOMMU
 |           +-01.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
 |           +-01.1-[c1]--+-00.0  NVIDIA Corporation AD104 [GeForce RTX 4070 SUPER]
 |           |            \-00.1  NVIDIA Corporation Device 22bc
 |           +-02.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
 |           +-03.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
 |           +-03.1-[c2]--+-00.0  NVIDIA Corporation GA102 [GeForce RTX 3090]
 |           |            \-00.1  NVIDIA Corporation GA102 High Definition Audio Controller
 |           +-04.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
 |           +-05.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
 |           +-07.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
 |           +-07.1-[c3]--+-00.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Function
 |           |            \-00.2  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PTDMA
 |           +-08.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
 |           \-08.1-[c4]--+-00.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse Reserved SPP
 |                        \-00.2  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PTDMA
 +-[0000:80]-+-00.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse Root Complex
 |           +-00.2  Advanced Micro Devices, Inc. [AMD] Starship/Matisse IOMMU
 |           +-01.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
 |           +-02.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
 |           +-03.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
 |           +-04.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
 |           +-05.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
 |           +-07.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
 |           +-07.1-[81]--+-00.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Function
 |           |            \-00.2  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PTDMA
 |           +-08.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
 |           +-08.1-[82]--+-00.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse Reserved SPP
 |           |            \-00.2  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PTDMA
 |           +-08.2-[83]----00.0  Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode]
 |           \-08.3-[84]----00.0  Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode]
 +-[0000:40]-+-00.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse Root Complex
 |           +-00.2  Advanced Micro Devices, Inc. [AMD] Starship/Matisse IOMMU
 |           +-01.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
 |           +-01.1-[41]----00.0  Sandisk Corp Device 5045
 |           +-01.3-[42-43]--+-00.0  Intel Corporation Ethernet Controller X550
 |           |               \-00.1  Intel Corporation Ethernet Controller X550
 |           +-01.4-[44]----00.0  ASMedia Technology Inc. ASM2142/ASM3142 USB 3.1 Host Controller
 |           +-01.5-[45-46]----00.0-[46]----00.0  ASPEED Technology, Inc. ASPEED Graphics Family
 |           +-02.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
 |           +-03.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
 |           +-04.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
 |           +-05.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
 |           +-07.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
 |           +-07.1-[47]--+-00.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Function
 |           |            \-00.2  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PTDMA
 |           +-08.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
 |           +-08.1-[48]--+-00.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse Reserved SPP
 |           |            +-00.1  Advanced Micro Devices, Inc. [AMD] Starship/Matisse Cryptographic Coprocessor PSPCPP
 |           |            +-00.2  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PTDMA
 |           |            \-00.3  Advanced Micro Devices, Inc. [AMD] Starship USB 3.0 Host Controller
 |           +-08.2-[49]----00.0  Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode]
 |           \-08.3-[4a]----00.0  Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode]
 \-[0000:00]-+-00.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse Root Complex
             +-00.2  Advanced Micro Devices, Inc. [AMD] Starship/Matisse IOMMU
             +-01.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
             +-02.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
             +-03.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
             +-03.5-[01]--
             +-04.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
             +-05.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
             +-07.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
             +-07.1-[02]--+-00.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Function
             |            \-00.2  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PTDMA
             +-08.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
             +-08.1-[03]--+-00.0  Advanced Micro Devices, Inc. [AMD] Starship/Matisse Reserved SPP
             |            +-00.2  Advanced Micro Devices, Inc. [AMD] Starship/Matisse PTDMA
             |            \-00.3  Advanced Micro Devices, Inc. [AMD] Starship USB 3.0 Host Controller
             +-14.0  Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller
             +-14.3  Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge
             +-18.0  Advanced Micro Devices, Inc. [AMD] Starship Device 24; Function 0
             +-18.1  Advanced Micro Devices, Inc. [AMD] Starship Device 24; Function 1
             +-18.2  Advanced Micro Devices, Inc. [AMD] Starship Device 24; Function 2
             +-18.3  Advanced Micro Devices, Inc. [AMD] Starship Device 24; Function 3
             +-18.4  Advanced Micro Devices, Inc. [AMD] Starship Device 24; Function 4
             +-18.5  Advanced Micro Devices, Inc. [AMD] Starship Device 24; Function 5
             +-18.6  Advanced Micro Devices, Inc. [AMD] Starship Device 24; Function 6
             \-18.7  Advanced Micro Devices, Inc. [AMD] Starship Device 24; Function 7

Unfortunately, the ethernet was not detected by Sculpt, and I did not have much time to setup some pre-installed software, so I was left looking around rather an empty system over the BMC interface. The BMC mouse functionality was not working in Sculpt either, so I had to plug in an external USB mouse instead. The log was not much help in providing some useful diagnosis. Interestingly though, I did spot these error messages which suggest that Sculpt is unable to map any more than 64 of my threads.

alex-ab · April 14, 2026, 11:06am

For base-nova the maximum configured CPU count is 64. For some internal experiments on our build servers around christmas I increased the number slightly, which worked (look for MAX_SUPPORTED_CPUS). Beside that, the main issue will be the discovery of the devices on the multiple pci root bridges. Up to now Genode “sees” only one root bridge, and all devices behind the other root bridges will be not available. We had some experimental commits but nothing which is general applicable by now.