# Find the required kernel module for the network adapter using `lspci -v` and add it to `boot.initrd.availableKernelModules`. # Enable `networking.useDHCP` or set a static ip using the `ip=` kernel parameter. # Generate another SSH host key for the machine: # $ ssh-keygen -t ed25519 -N "" -f /etc/ssh/ssh_host_ed25519_key_initrd -C HOSTNAME-initrd # Add the public key to your known_hosts and create an ssh config entry. { config, ... }: { boot.initrd = { systemd = { enable = true; network = { enable = true; networks."10-wired-default" = config.systemd.network.networks."10-wired-default"; }; users.root.shell = "/bin/systemd-tty-ask-password-agent"; }; network = { enable = true; ssh = { enable = true; port = 222; hostKeys = [ "/etc/ssh/ssh_host_ed25519_key_initrd" ]; # authorizedKeys option inherits root's authorizedKeys.keys, but not keyFiles }; }; }; }