=== lspci -nn | grep -i nvswitch === 09:00.0 Bridge [0680]: NVIDIA Corporation GH100 [H100 NVSwitch] [10de:22a3] (rev a1) 0a:00.0 Bridge [0680]: NVIDIA Corporation GH100 [H100 NVSwitch] [10de:22a3] (rev a1) 0b:00.0 Bridge [0680]: NVIDIA Corporation GH100 [H100 NVSwitch] [10de:22a3] (rev a1) 0c:00.0 Bridge [0680]: NVIDIA Corporation GH100 [H100 NVSwitch] [10de:22a3] (rev a1) === nvidia device nodes === crw-rw-rw- 1 root root 195, 0 Nov 4 20:09 /dev/nvidia0 crw-rw-rw- 1 root root 195, 1 Nov 4 20:09 /dev/nvidia1 crw-rw-rw- 1 root root 195, 2 Nov 4 20:09 /dev/nvidia2 crw-rw-rw- 1 root root 195, 3 Nov 4 20:09 /dev/nvidia3 crw-rw-rw- 1 root root 195, 4 Nov 4 20:09 /dev/nvidia4 crw-rw-rw- 1 root root 195, 5 Nov 4 20:09 /dev/nvidia5 crw-rw-rw- 1 root root 195, 6 Nov 4 20:09 /dev/nvidia6 crw-rw-rw- 1 root root 195, 7 Nov 4 20:09 /dev/nvidia7 crw-rw-rw- 1 root root 195, 255 Nov 4 20:09 /dev/nvidiactl crw-rw-rw- 1 root root 195, 254 Nov 4 20:09 /dev/nvidia-modeset crw-rw-rw- 1 root root 239, 0 Nov 4 20:09 /dev/nvidia-nvlink crw-rw-rw- 1 root root 238, 0 Nov 4 20:09 /dev/nvidia-nvswitch0 crw-rw-rw- 1 root root 238, 1 Nov 4 20:09 /dev/nvidia-nvswitch1 crw-rw-rw- 1 root root 238, 2 Nov 4 20:09 /dev/nvidia-nvswitch2 crw-rw-rw- 1 root root 238, 3 Nov 4 20:09 /dev/nvidia-nvswitch3 crw-rw-rw- 1 root root 238, 255 Nov 4 20:09 /dev/nvidia-nvswitchctl crw-rw-rw- 1 root root 237, 0 Nov 4 20:09 /dev/nvidia-uvm crw-rw-rw- 1 root root 237, 1 Nov 4 20:09 /dev/nvidia-uvm-tools /dev/nvidia-caps: total 0 cr-------- 1 root root 240, 0 Nov 4 20:09 nvidia-cap0 cr-------- 1 root root 240, 1 Nov 4 20:09 nvidia-cap1 cr--r--r-- 1 root root 240, 2 Nov 4 20:09 nvidia-cap2 === fabric manager / nvswitch / cc-ready / persistenced services === netplan-ovs-cleanup.service loaded inactive dead OpenVSwitch configuration for cleanup nvidia-cc-ready.service loaded active exited NVIDIA GPU Confidential Computing ready state (srs=1) nvidia-fabricmanager.service loaded active running NVIDIA fabric manager service nvidia-persistenced.service loaded active running NVIDIA Persistence Daemon === NSCQ library on the stock image === no nscq package installed ls: cannot access '/usr/lib/x86_64-linux-gnu/libnvidia-nscq*': No such file or directory === A. method of 10 September: switch evidence and NRAS, ppcie_mode False, stock image === Tenant nonce, drawn outside the VM: 77f046c9397afbb1877043e8827be289adaba48d0a71c271ffcd02a0d4835ab5 python3: undefined symbol: nscq_session_create switch evidence items: 0 **** Attestation Failed **** Error in Nvswitch Attestation using NRAS due to: {'status': 'BAD_REQUEST', 'errorCode': 4005, 'message': 'INVALID_EVIDENCE', 'debugMessage': 'Invalid Evidence, please provide valid evidence', 'fieldName': 'evidences', 'timestamp': '2026-11-04 08:11:35'} NRAS Response Code: 400 NRAS switch attestation -> False exit code: 1 === B. same call after installing libnvidia-nscq pinned to the driver (NVIDIA network repository, method of 19 September) === driver 595.71.05, target package libnvidia-nscq=595.71.05-1ubuntu1, repository ubuntu2404 Unpacking cuda-keyring (1.1-1) over (1.1-1) ... Setting up cuda-keyring (1.1-1) ... libnvidia-nscq: Installed: (none) Candidate: 620.70.06-1ubuntu1 Version table: 620.70.06-1ubuntu1 600 600 https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2404/x86_64 Packages 615.71.10-1ubuntu1 600 600 https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2404/x86_64 Packages No user sessions are running outdated binaries. No VM guests are running outdated hypervisor (qemu) binaries on this host. ii libnvidia-nscq 595.71.05-1ubuntu1 amd64 NVSwitch Configuration and Query library lrwxrwxrwx 1 root root 19 Apr 24 2026 /usr/lib/x86_64-linux-gnu/libnvidia-nscq.so -> libnvidia-nscq.so.2 lrwxrwxrwx 1 root root 21 Apr 24 2026 /usr/lib/x86_64-linux-gnu/libnvidia-nscq.so.2 -> libnvidia-nscq.so.2.0 lrwxrwxrwx 1 root root 27 Apr 24 2026 /usr/lib/x86_64-linux-gnu/libnvidia-nscq.so.2.0 -> libnvidia-nscq.so.595.71.05 -rw-r--r-- 1 root root 1586224 Apr 24 2026 /usr/lib/x86_64-linux-gnu/libnvidia-nscq.so.595.71.05 Tenant nonce, drawn outside the VM: 000ce30c44d14be0b5e7e736d0801b50315c534eadcdeef241e5ac5c73217498 Getting evidence details for SWX-E7DAEE16-A0CE-2AF1-D01A-19731D106532 Getting evidence details for SWX-CB70CE3A-0AB8-D30F-832C-EF9631BAE408 Getting evidence details for SWX-BD08A864-EC9F-B67F-0B30-8BE843723507 Getting evidence details for SWX-16193CCB-D5C4-A9B9-83D4-DCE9B660955D All nvSwitch Evidences fetched successfully switch evidence items: 4 **** Attestation Successful **** NRAS switch attestation -> True switch token bytes: 7410 summary {"sub": "NVIDIA-PLATFORM-ATTESTATION", "x-nvidia-ver": "2.0", "nbf": 1793823116, "iss": "https://nras.attestation.nvidia.com", "x-nvidia-overall-att-result": true, "submods": {"SWITCH-0": ["DIGEST", ["SHA-256", "9a4b1b1e5dc7fd598a4e84ec0160b3727f72ae12c9ed56fc4e2ceba777bf0a0a"]], "SWITCH-1": ["DIGEST", ["SHA-256", "44a4bde57c9e95506fbf8eb6d702aedefaa69bca618bca284fc25b65f2f8d602"]], "SWITCH-2": ["DIGEST", ["SHA-256", "ba5b952e0024f893ee2bbff7486044f5e4ce189cab6a20aeac5e50d0e6092d07"]], "SWITCH-3": ["DIGEST", ["SHA-256", "967630631ded51348dd6193ebc68a2e816922f55f584a44b3f00b62ea5522fa4"]]}, "eat_nonce": "000ce30c44d14be0b5e7e736d0801b50315c534eadcdeef241e5ac5c73217498", "exp": 1793826716, "iat": 1793823116, "jti": "4bdaeebf-7124-4239-ab36-2945e537a15f"} SWITCH-0 {"x-nvidia-switch-bios-rim-fetched": true, "x-nvidia-switch-bios-rim-signature-verified": true, "x-nvidia-switch-arch-check": true, "secboot": true, "x-nvidia-switch-attestation-report-signature-verified": true, "x-nvidia-switch-bios-rim-schema-validated": true, "x-nvidia-switch-attestation-report-parsed": true, "iss": "https://nras.attestation.nvidia.com", "x-nvidia-switch-bios-rim-cert-validated": true, "eat_nonce": "000ce30c44d14be0b5e7e736d0801b50315c534eadcdeef241e5ac5c73217498", "x-nvidia-attestation-warning": null, "nbf": 1793823116, "x-nvidia-switch-attestation-report-nonce-match": true, "hwmodel": "LS_10", "dbgstat": "disabled", "x-nvidia-switch-bios-rim-measurements-available": true, "oemid": null, "x-nvidia-switch-attestation-report-cert-chain-validated": true, "measres": "success", "exp": 1793826716, "x-nvidia-switch-bios-version": "96.10.6D.00.01", "iat": 1793823116, "ueid": "720278358416393591190413567873962325770272435121", "jti": "f2fb0455-2f1d-46c1-b6ee-a55d62f2c122"} SWITCH-1 {"x-nvidia-switch-bios-rim-fetched": true, "x-nvidia-switch-bios-rim-signature-verified": true, "x-nvidia-switch-arch-check": true, "secboot": true, "x-nvidia-switch-attestation-report-signature-verified": true, "x-nvidia-switch-bios-rim-schema-validated": true, "x-nvidia-switch-attestation-report-parsed": true, "iss": "https://nras.attestation.nvidia.com", "x-nvidia-switch-bios-rim-cert-validated": true, "eat_nonce": "000ce30c44d14be0b5e7e736d0801b50315c534eadcdeef241e5ac5c73217498", "x-nvidia-attestation-warning": null, "nbf": 1793823116, "x-nvidia-switch-attestation-report-nonce-match": true, "hwmodel": "LS_10", "dbgstat": "disabled", "x-nvidia-switch-bios-rim-measurements-available": true, "oemid": null, "x-nvidia-switch-attestation-report-cert-chain-validated": true, "measres": "success", "exp": 1793826716, "x-nvidia-switch-bios-version": "96.10.6D.00.01", "iat": 1793823116, "ueid": "423725473880037597661543850209627395093851749917", "jti": "43308ed3-91c2-4415-be1e-6fa9d71cdea5"} SWITCH-2 {"x-nvidia-switch-bios-rim-fetched": true, "x-nvidia-switch-bios-rim-signature-verified": true, "x-nvidia-switch-arch-check": true, "secboot": true, "x-nvidia-switch-attestation-report-signature-verified": true, "x-nvidia-switch-bios-rim-schema-validated": true, "x-nvidia-switch-attestation-report-parsed": true, "iss": "https://nras.attestation.nvidia.com", "x-nvidia-switch-bios-rim-cert-validated": true, "eat_nonce": "000ce30c44d14be0b5e7e736d0801b50315c534eadcdeef241e5ac5c73217498", "x-nvidia-attestation-warning": null, "nbf": 1793823116, "x-nvidia-switch-attestation-report-nonce-match": true, "hwmodel": "LS_10", "dbgstat": "disabled", "x-nvidia-switch-bios-rim-measurements-available": true, "oemid": null, "x-nvidia-switch-attestation-report-cert-chain-validated": true, "measres": "success", "exp": 1793826716, "x-nvidia-switch-bios-version": "96.10.6D.00.01", "iat": 1793823116, "ueid": "712368925934732713201887263247998023624678467795", "jti": "3b785dd3-b974-45ac-bb39-9aeec6eee663"} SWITCH-3 {"x-nvidia-switch-bios-rim-fetched": true, "x-nvidia-switch-bios-rim-signature-verified": true, "x-nvidia-switch-arch-check": true, "secboot": true, "x-nvidia-switch-attestation-report-signature-verified": true, "x-nvidia-switch-bios-rim-schema-validated": true, "x-nvidia-switch-attestation-report-parsed": true, "iss": "https://nras.attestation.nvidia.com", "x-nvidia-switch-bios-rim-cert-validated": true, "eat_nonce": "000ce30c44d14be0b5e7e736d0801b50315c534eadcdeef241e5ac5c73217498", "x-nvidia-attestation-warning": null, "nbf": 1793823116, "x-nvidia-switch-attestation-report-nonce-match": true, "hwmodel": "LS_10", "dbgstat": "disabled", "x-nvidia-switch-bios-rim-measurements-available": true, "oemid": null, "x-nvidia-switch-attestation-report-cert-chain-validated": true, "measres": "success", "exp": 1793826716, "x-nvidia-switch-bios-version": "96.10.6D.00.01", "iat": 1793823116, "ueid": "693262554727799771670314371167232066346016387305", "jti": "e22e35e6-5727-4a80-a9ac-002668d7e6e7"} exit code: 0 === end of phase 5 ===