Hi all,
I’ve previously had no problems using Ethernet with NixOS on my Raspberry Pi 3B+, but as I’m continuing to try to get a solid BTRFS-based image (https://discourse.nixos.org/t/raspberry-pi-nixos-on-btrfs-root/), my most recent image results in no IP address or network connection on eth0.
Relevant config, on 22.05:
networking = {
hostName = "nixpi";
useDHCP = false;
interfaces = {
eth0.useDHCP = true;
};
firewall.enable = false;
wireless = {
enable = true;
networks = {
"MyWifi" = {
pskRaw = "totally Real";
};
};
};
};
Elsewhere in hardware-configuration.nix:
networking = {
useDHCP = lib.mkDefault false;
interfaces.eth0.useDHCP = lib.mkDefault true;
};
- https://github.com/n8henrie/nixos-btrfs-pi/blob/2a5a33554d3fc6570c061172c2b71bdf1b4954a0/nixos/configuration-sample.nix
- https://github.com/n8henrie/nixos-btrfs-pi/blob/2a5a33554d3fc6570c061172c2b71bdf1b4954a0/nixos/hardware-configuration.nix#L106
In ip addr I can see eth0 but no IP address, and no DHCP request that I can see in my pfsense logs.
No help with systemctl restart dhcpcd.service, no obvious error messages. No help unplugging and replugging the LAN cable both ends. No help with a nixos-rebuild --upgrade switch. If I change the wireless credentials I can get wlan0 working, but still no IP address on eth0.
What am I missing?
I tried running dhclient manually but it’s not found – what manual steps can I take to solicit an IP address and debug this? The Ethernet adapter has previously been working on this Pi, so I don’t suspect a hardware issue.
TIA for any suggestions!