Ошибка FATAL: The following signatures were invalid в CentOS 7

When using CentOS 7, you may encounter the dreaded FATAL error message stating that «The following signatures were invalid.» This error can be frustrating and confusing, especially if you are not sure what caused it or how to fix it. In this article, we will explore the possible reasons for this error and provide you with some solutions to resolve it.

What causes this error?

The FATAL error with invalid signatures in CentOS 7 typically occurs when the GPG key used to sign a package is not recognized or has become corrupted. This can happen for various reasons, such as:

• Outdated or expired GPG keys
• Changed or deleted GPG keys
• Network connectivity issues preventing the retrieval of GPG keys
• Malware or security breaches affecting the GPG keys

How to troubleshoot and fix the error

Here are some steps you can take to troubleshoot and resolve the FATAL error with invalid signatures in CentOS 7:

1. sudo yum clean all: This command will clean the yum cache and remove any outdated or corrupted data that may be causing the issue.
2. sudo yum update --nogpgcheck: By using the --nogpgcheck flag, you can bypass the GPG check for packages and update the system without verification.
3. Manually import GPG keys: If the GPG keys are missing or corrupted, you can manually import them using the sudo rpm --import {key_file} command.
4. Check network connectivity: Ensure that your CentOS 7 system has proper network connectivity to download and verify GPG keys during package installation.

By following these steps and understanding the possible causes of the FATAL error with invalid signatures in CentOS 7, you can effectively troubleshoot and resolve this issue on your system. Remember to always keep your GPG keys up to date and secure to prevent similar errors in the future.