`sudo: a terminal is required to read the password; either use the -S option to read from standard input or configure an askpass helper`

[Henry-Hiles]

Whenever I nh os switch with a remote server, I get the error:

sudo: a terminal is required to read the password; either use the -S option to read from standard input or configure an askpass helper
sudo: a password is required

Command ran with -v --no-nom:

TRACE nh::logging:86: Logging OK
DEBUG nh:28: Main {
    verbose: true,
    command: Os(
        OsArgs {
            subcommand: Switch(
                OsRebuildArgs {
                    common: CommonRebuildArgs {
                        dry: false,
                        ask: false,
                        installable: Flake {
                            reference: "/home/quadradical/.config/nixos",
                            attribute: [],
                        },
                        no_nom: true,
                        out_link: None,
                    },
                    update_args: UpdateArgs {
                        update: false,
                        update_input: None,
                    },
                    hostname: Some(
                        "quadraticserver",
                    ),
                    specialisation: None,
                    no_specialisation: false,
                    extra_args: [],
                    bypass_root_check: false,
                    target_host: Some(
                        "192.168.0.132",
                    ),
                    build_host: None,
                },
            ),
        },
    ),
}
DEBUG nh:29: NH_VERSION=4.1.0 NH_REV=Some("1ea27e7")
DEBUG nh::commands:160: cmd=Exec { nix --version }
DEBUG nh::commands:160: cmd=Exec { nix --version }
DEBUG nh::commands:160: cmd=Exec { nix --version }
DEBUG nh::commands:160: cmd=Exec { nix --version }
DEBUG nh::checks:85: Required Nix features: nix-command, flakes, repl-flake
DEBUG nh::commands:160: cmd=Exec { nix config show experimental-features }
DEBUG nh::checks:91: Enabled Nix features: nix-command, repl-flake, flakes
DEBUG nh::commands:160: cmd=Exec { nix config show experimental-features }
DEBUG nh::checks:111: All required Nix features are enabled
DEBUG nh::nixos:125: out_path=("/tmp/nh-osUkFNX5/result", TempDir { path: "/tmp/nh-osUkFNX5" })
> Building NixOS configuration
DEBUG nh::commands:256: cmd=Exec { nix build '/home/quadradical/.config/nixos#nixosConfigurations.quadraticserver.config.system.build.toplevel' --out-link /tmp/nh-osUkFNX5/result }
DEBUG nh::nixos:173: target_specialisation: None
DEBUG nh::nixos:180: Output path: /tmp/nh-osUkFNX5/result
DEBUG nh::nixos:181: Target profile path: /tmp/nh-osUkFNX5/result
DEBUG nh::nixos:182: Target profile exists: true
DEBUG nh::nixos:214: Not running nvd as the target hostname is different from the system hostname.
> Copying configuration to target
DEBUG nh::commands:137: cmd=Exec { nix copy --to 'ssh://192.168.0.132' /tmp/nh-osUkFNX5/result }
> Activating configuration
DEBUG nh::commands:137: cmd=Exec { ssh -T 192.168.0.132 }
sudo: a terminal is required to read the password; either use the -S option to read from standard input or configure an askpass helper
sudo: a password is required
DEBUG nh::commands:137: cmd=Exec { ssh -T 192.168.0.132 }
sudo: a terminal is required to read the password; either use the -S option to read from standard input or configure an askpass helper
sudo: a password is required
> Adding configuration to bootloader
DEBUG nh::commands:137: cmd=Exec { ssh -T 192.168.0.132 }
sudo: a terminal is required to read the password; either use the -S option to read from standard input or configure an askpass helper
sudo: a password is required
DEBUG nh::nixos:286: Completed operation with output path: "/tmp/nh-osUkFNX5/result"

[Henry-Hiles]

I actually have the same issue now with regular nixos-rebuild and it tells me to use an arg that doesn't exist. However, nixos-rebuild-ng works with the --ask-sudo-password flag.