herdrdev/herdr · warning

remote herdr install cancelled

Error message

remote herdr install cancelled

What it means

When the remote herdr binary is missing and interactive install is enabled, herdr prompts on stderr asking whether to install it. If the user answers anything other than 'y' or 'yes', this Interrupted error is returned, aborting the attach flow.

Source

Thrown at src/remote/attach.rs:1102

    let status = match remote_server_status(ssh, remote_herdr) {
        Ok(status) => status,
        Err(err) => {
            if !io::stdin().is_terminal() {
                return Err(io::Error::other(format!(
                    "could not inspect the running remote herdr server on {target} before installing: {err}; run from an interactive terminal to approve updating the remote binary"
                )));
            }
            eprintln!(
                "could not inspect the running remote herdr server on {target} before installing: {err}"
            );
            eprint!("continue installing the remote herdr binary? [y/N] ");
            io::stderr().flush()?;

            let mut answer = String::new();
            io::stdin().read_line(&mut answer)?;
            let answer = answer.trim().to_ascii_lowercase();
            if answer != "y" && answer != "yes" {
                return Err(io::Error::new(
                    io::ErrorKind::Interrupted,
                    "remote herdr install cancelled",
                ));
            }
            return Ok(false);
        }
    };
    let RemoteServerStatus::Running {
        version,
        protocol,
        live_handoff,
        detached_server_daemon,
    } = &status
    else {
        return Ok(false);
    };
    let plan = remote_install_running_server_plan(
        version.as_deref(),

View on GitHub (pinned to f457cff4f2)

Solutions

1. Answer 'y' or 'yes' at the prompt to proceed with installation
2. Pre-install herdr on the remote host so no prompt appears
3. Set the appropriate non-interactive/force flag or env var if available instead of relying on the prompt
4. Check for a --yes/-y style flag on the attach command

match attach() {
    Err(e) if e.kind() == std::io::ErrorKind::Interrupted && e.to_string().contains("cancelled") => {
        // user declined; exit quietly with a distinct code
        std::process::exit(130);
    }
    other => other,
}

When it happens

Trigger: Running herdr remote attach against a host without herdr installed, then answering 'n', pressing Enter on an empty line, or EOF/piped input that yields a non-yes answer at the confirmation prompt.

Common situations: Scripts or CI piping stdin so read_line returns empty/EOF, a user declining an unexpected install prompt, or non-interactive shells where the prompt cannot be answered.

Related errors

• remote herdr installation cancelled
• remote herdr server stop cancelled
• api request line is too large
• timed out reading api request
• timed out waiting for app response after {} ms

AI-assisted analysis of herdrdev/herdr@f457cff4f2 (2026-08-28). Data as JSON: /api/errors/c0dbd7ae9267d136. Report an issue: GitHub.