# Additional info: * package version(s): nvidia-dkms: 550.78-1 * config and/or log files: * NVIDIA GeForce RTX 2070/PCIe/SSE2 * systemd 255.6-2 ```bash 11:11:21.155 UTC systemd-udevd.service nvidia_modeset: Process '/usr/bin/bash -c '/usr/bin/mknod -Z -m 666 /dev/nvidia-modeset c $(grep nvidia /proc/devices | cut -d \ -f 1) 254'' failed with exit code 1. 11:11:21.156 UTC systemd-udevd.service nvidia: Process '/usr/bin/bash -c '/usr/bin/mknod -Z -m 666 /dev/nvidiactl c $(grep nvidia /proc/devices | cut -d \ -f 1) 255'' failed with exit code 1. 11:11:21.165 UTC systemd-udevd.service nvidia: Process '/usr/bin/bash -c 'for i in $(cat /proc/driver/nvidia/gpus/*/information | grep Minor | cut -d \ -f 4); do /usr/bin/mknod -Z -m 666 /dev/nvidia${i} c $(grep nvidia /proc/devices | cut -d \ -f 1) ${i}; done'' failed with exit code 1. 11:11:21.186 UTC systemd-udevd.service nvidia: Process '/usr/bin/bash -c '/usr/bin/mknod -Z -m 666 /dev/nvidiactl c $(grep nvidia /proc/devices | cut -d \ -f 1) 255'' failed with exit code 1. 11:11:21.194 UTC systemd-udevd.service nvidia: Process '/usr/bin/bash -c 'for i in $(cat /proc/driver/nvidia/gpus/*/information | grep Minor | cut -d \ -f 4); do /usr/bin/mknod -Z -m 666 /dev/nvidia${i} c $(grep nvidia /proc/devices | cut -d \ -f 1) ${i}; done'' failed with exit code 1. ``` # Steps to reproduce: 1. Install nvidia-dkms 2. Reboot system # Description: Every time I reboot, these errors appear in journalctl, and it seems that /dev/ devices appear quite late, since the unit I created for multi-user.target does not see any of the /dev/nvidia* devices. I tried to run: ```bash /usr/bin/mknod -Z -m 666 /dev/nvidiactl c $(grep nvidia /proc/devices | cut -d \ -f 1) 255 ``` And I get: ```bash /usr/bin/mknod: extra operand "195" ``` If I run: ```bash grep nvidia /proc/devices ``` I get: ```bash 195 nvidia 195 nvidia modeset 195 nvidiactl 236 nvidia-uvm 237 nvidia-nvswitch 238 nvidia-nvlink 239 nvidia-caps 240 nvidia-caps-imex-channels ``` But for mknod need 2 operand. Looks like a more precise grep search is needed, as an example:: ```bash /usr/bin/mknod -Z -m 666 /dev/nvidiactl c $(grep nvidia$ /proc/devices | cut -d \ -f 1) 255 ``` This command give me `/dev/nvidiactl: File exist` and if I put this in the rules, the error related to nvidiactl will disappear **Is this normal behavior for the rules?** Also, rules with KERNEL=='nvidia' output 'failed with exit code 1' no matter what command you give. I replaced it with KERNEL=='nvidia-modeset ', the error disappeared. /dev device started appearing in the early stages, but I'm not sure how correct this can be. **To me, this all looks a lot like errors in the script and udev, but I'm not sure. I don't know much about drivers and devices.**