NVIDIA 535's kernel module won't compile against kernel 7.x — the
DMA mapping API changed in a way the 535 source doesn't handle.
6.12 LTS is the highest kernel branch that's a well-tested combo
with the 535 driver, which we need on stable's nixpkgs to retain
Maxwell support for Jellyfin NVENC.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
legacy_580 only exists on unstable nixpkgs and isn't backported to
25.11. The Maxwell GM206 (Quadro M2000) is supported through the
535.x branch — last production driver to ship Maxwell support — so
this is a clean swap with no expected impact on Jellyfin's NVENC.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
The latest 595.x driver dropped Maxwell GPU support. The Quadro M2000
(GM206) requires the legacy_580 branch for CUDA/NVENC to function.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add sudo to reboot alias so it doesn't prompt for password.
Add blank line before networking.hostName in hardware config.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
On a headless system, services.xserver.videoDrivers doesn't guarantee
the NVIDIA modules load. Add nvidia, nvidia_modeset, nvidia_uvm, and
nvidia_drm to boot.kernelModules explicitly.
nvidia_uvm is particularly critical — without it, CUDA initialisation
fails with CUDA_ERROR_NO_DEVICE, which is exactly what broke Jellyfin
NVENC transcoding.
https://claude.ai/code/session_016jJU8ZtWLSnJQBdbMr5pxK
- Add NVIDIA proprietary driver config to FredOS-Mediaserver hardware
(Maxwell/GM206, open=false, modesetting enabled, headless)
- Enable hardware.graphics for DRM/KMS infrastructure
- Add jellyfin user to video and render groups for device access
After deploying, enable NVENC in Jellyfin: Dashboard → Playback →
Transcoding → Hardware acceleration: Nvidia NVENC.
https://claude.ai/code/session_016jJU8ZtWLSnJQBdbMr5pxK
New server uses systemd-boot instead of GRUB. Data disks and
mergerfs pool to be added after physical disk migration.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Clear old disk UUIDs, boot config, and filesystem mounts.
Add backup script for migrating service state to new hardware.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
nixpkgs.stdenv.hostPlatform is not a valid NixOS option. The
deprecation warning comes from nixpkgs internals and is harmless.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
