nixos-rebuild switch produces warnings about systemd-udev-settle service #21954
Description
Issue description
When running nixos-rebuild switch, sometimes systemd-udev-settle fails to start with an error message:
$ systemctl status systemd-udev-settle
● systemd-udev-settle.service - udev Wait for Complete Device Initialization
Loaded: loaded (/nix/store/qzvya9kh5wh3bkcryd3g14xax48i1klc-systemd-231/example/systemd/system/systemd-udev-settle.s
Active: failed (Result: exit-code) since Tue 2017-01-17 17:35:55 CET; 53min ago
Docs: man:udev(7)
man:systemd-udevd.service(8)
Process: 3392 ExecStart=/nix/store/qzvya9kh5wh3bkcryd3g14xax48i1klc-systemd-231/bin/udevadm settle (code=exited, stat
Main PID: 3392 (code=exited, status=1/FAILURE)
Jan 17 17:33:54 c-cube systemd[1]: Starting udev Wait for Complete Device Initialization...
Jan 17 17:35:55 c-cube systemd[1]: systemd-udev-settle.service: Main process exited, code=exited, status=1/FAILURE
Jan 17 17:35:55 c-cube systemd[1]: Failed to start udev Wait for Complete Device Initialization.
Jan 17 17:35:55 c-cube systemd[1]: systemd-udev-settle.service: Unit entered failed state.
Jan 17 17:35:55 c-cube systemd[1]: systemd-udev-settle.service: Failed with result 'exit-code'.
Steps to reproduce
Run nixos-rebuild switch
Technical details
- System: NixOS:
17.03.git.f673243aff (Gorilla) - Nix version:
nix-env (Nix) 1.11.5 - Nixpkgs version:
17.03.git.f673243aff