> ## Documentation Index
> Fetch the complete documentation index at: https://docs.edisglobal.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Disable serial-getty@ttyS0 on Debian 13 (Fix Log Spam)

> Stop serial-getty@ttyS0.service restart loops and journal log spam on Debian 13 VPS without a serial console. Step-by-step disable and mask commands.

## Overview

Some Debian 13 installations repeatedly attempt to start a serial console (`ttyS0`) even on systems where no physical or virtual serial device exists.

This can result in continuous log noise similar to:

```text theme={"system"}
serial-getty@ttyS0.service: Failed with result 'exit-code'
serial-getty@ttyS0.service: Scheduled restart job
```

The issue has been discussed publicly in the Debian kernel mailing list.

## EDIS Global handling

EDIS Global automatically disables the unnecessary serial getty service during fresh Debian 13 installations to avoid excessive logging and unnecessary service restarts.

## Existing systems

If you already have a running Debian 13 system affected by this issue, you can silence the logging noise with the following commands:

```bash theme={"system"}
systemctl disable serial-getty@ttyS0.service
systemctl mask serial-getty@ttyS0.service
```

## Optional verification

You can verify the service status with:

```bash theme={"system"}
systemctl status serial-getty@ttyS0.service
```

## Additional information

Related Debian discussion: [lists.debian.org/debian-kernel/2025/02/msg01161.html](https://lists.debian.org/debian-kernel/2025/02/msg01161.html)