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nvidia: fix $ substitution in udev rules

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This fixes a harmless error from systemd-udevd that looks like:

  Dec 23 15:35:23 dellbook systemd-udevd[696]:
  /nix/store/iixya3ni5whybpq9zz1h7f4pyw7nhd19-udev-rules/99-local.rules:25
  Invalid value "..." for RUN (char 101: invalid substitution type),
  ignoring, but please fix it.

Using $$ fixes it using the escaping documented at https://www.freedesktop.org/software/systemd/man/udev.html.
This commit is contained in:
Matthew Bauer 2019-12-26 12:52:03 -05:00
parent 5858d7229a
commit 6689a385d1
1 changed files with 4 additions and 4 deletions
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8
nixos/modules/hardware/video/nvidia.nix
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@ -197,10 +197,10 @@ in
# Create /dev/nvidia-uvm when the nvidia-uvm module is loaded.
services.udev.extraRules =
''
KERNEL=="nvidia", RUN+="${pkgs.runtimeShell} -c 'mknod -m 666 /dev/nvidiactl c $(grep nvidia-frontend /proc/devices | cut -d \ -f 1) 255'"
KERNEL=="nvidia_modeset", RUN+="${pkgs.runtimeShell} -c 'mknod -m 666 /dev/nvidia-modeset c $(grep nvidia-frontend /proc/devices | cut -d \ -f 1) 254'"
KERNEL=="card*", SUBSYSTEM=="drm", DRIVERS=="nvidia", RUN+="${pkgs.runtimeShell} -c 'mknod -m 666 /dev/nvidia%n c $(grep nvidia-frontend /proc/devices | cut -d \ -f 1) %n'"
KERNEL=="nvidia_uvm", RUN+="${pkgs.runtimeShell} -c 'mknod -m 666 /dev/nvidia-uvm c $(grep nvidia-uvm /proc/devices | cut -d \ -f 1) 0'"
KERNEL=="nvidia", RUN+="${pkgs.runtimeShell} -c 'mknod -m 666 /dev/nvidiactl c $$(grep nvidia-frontend /proc/devices | cut -d \ -f 1) 255'"
KERNEL=="nvidia_modeset", RUN+="${pkgs.runtimeShell} -c 'mknod -m 666 /dev/nvidia-modeset c $$(grep nvidia-frontend /proc/devices | cut -d \ -f 1) 254'"
KERNEL=="card*", SUBSYSTEM=="drm", DRIVERS=="nvidia", RUN+="${pkgs.runtimeShell} -c 'mknod -m 666 /dev/nvidia%n c $$(grep nvidia-frontend /proc/devices | cut -d \ -f 1) %n'"
KERNEL=="nvidia_uvm", RUN+="${pkgs.runtimeShell} -c 'mknod -m 666 /dev/nvidia-uvm c $$(grep nvidia-uvm /proc/devices | cut -d \ -f 1) 0'"
'';
boot.blacklistedKernelModules = [ "nouveau" "nvidiafb" ];