Mikhail Chusavitin
fb581c28d8
v11.51 pinned 580.126.20 (DGX OS 7.5.0's validated combo), but build-nvidia-module.sh downloads the .run installer from download.nvidia.com/XFree86/Linux-x86_64/<version>/, a separate catalog from the CUDA apt repo checked previously. 580.126.20 404s there — same failure class as the original 550.54.15 CDN-404 incident. Checked all 580.x point releases on that CDN; only some are mirrored (580.126.09, 580.159.03/.04, 580.173.02 are 200; 580.126.16, 580.126.20, 580.167.08 are 404). Switched to 580.159.03: confirmed downloadable, confirmed present as .deb in the apt repo, and it's the exact driver version running on the real DGX Spark. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>