#77 - Fix nmcli mtu property and drop -lmc from Spark system-config tutorial#78
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…utorial NetworkManager rejects `ipv4.mtu` (MTU is a link-layer property); the correct setting is `ethernet.mtu`. Updates both the IGX `nmcli connection modify` example and the Spark `nmcli connection add` profiles, plus the back-reference under Spark Step 9. Also drops `nvidia-smi -lmc` from Spark Step 7: GB10's unified CPU/GPU memory has no separate VRAM clock domain, so `clocks.max.mem` reports N/A and the command fails. Step 7 now locks only the SM clock and the systemd-unit note points readers at the line to omit from the IGX recipe. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> Signed-off-by: Ramya Gurunathan <rgurunathan@nvidia.com>
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Summary
Two corrections to
docs/tutorials/system_configuration.mdfrom a hands-on Spark walkthrough (issue #77):ipv4.mtu→ethernet.mtuin the Sparknmcli connection addprofiles, the IGXnmcli connection modifyexample, and the Spark Step 9 back-reference. NetworkManager rejectsipv4.mtu(MTU is link-layer, not an IPv4 property) — confirmed on the Spark box:Error: invalid property 'mtu': 'mtu' not among [method, dns, …].nvidia-smi -lmcfrom Spark Step 7. GB10's unified CPU/GPU memory has no separate VRAM clock domain, soclocks.max.memisN/Aand the command fails. Step 7 now locks only the SM clock and the systemd-unit note tells readers which line to omit from the IGX recipe.Closes #77.
Test plan
ipv4.mtuis rejected on Spark (nmcli connection add … ipv4.mtu 9000→Error: invalid property 'mtu').ethernet.mtuis accepted on Spark and IGX.mkdocs serverenders the Spark and IGX tabs cleanly; no broken anchors or build warnings.🤖 Generated with Claude Code