diff --git a/nixos/modules/tasks/network-interfaces.nix b/nixos/modules/tasks/network-interfaces.nix index 20a740ce1f0..815523093dd 100644 --- a/nixos/modules/tasks/network-interfaces.nix +++ b/nixos/modules/tasks/network-interfaces.nix @@ -341,7 +341,7 @@ in You should try to make this ID unique among your machines. You can generate a random 32-bit ID using the following commands: - cksum /etc/machine-id | while read c rest; do printf "%x" $c; done + head -c 8 /etc/machine-id (this derives it from the machine-id that systemd generates) or