How to Fix: cp: reading `filename': Input/output error WHY?

The 'cp: reading `filename'': Input/output error is a common issue that affects users who are trying to copy large files. This error occurs when the operating system is unable to read the source file due to various reasons, resulting in an input/output error.

This error can be frustrating for users as it prevents them from successfully copying their files, leading to data loss and wasted time. In this guide, we will explore the possible causes of this error and provide two primary methods to fix it.

⚠️ Common Causes

• The 'cp: reading `filename'': Input/output error is typically caused by one or more of the following reasons: * Insufficient disk space: If the destination directory does not have enough free space, the copy operation may fail. * File system issues: Corruption or errors in the file system can prevent the operating system from reading the source file. * Permissions issues: Lack of read permissions for the user attempting to copy the file can also cause this error. * Hardware issues: Faulty hardware, such as a failing hard drive, can lead to input/output errors during file copying.
• It's worth noting that these causes are not mutually exclusive, and multiple factors may be contributing to the error. Identifying and addressing the root cause is crucial to resolving the issue.

✅ Best Solutions to Fix It

💡 Conclusion

To summarize, the 'cp: reading `filename'': Input/output error can be resolved by using the `sync` command to ensure that all pending writes are written to disk or by checking and fixing any underlying file system errors. By following these steps, you should be able to successfully copy large files without encountering this error.