How to resolve file loss caused by mounting a disk on Linux?

If files are lost due to mounting a disk in a Linux system, you can try the following solutions:

1. Try using recovery tools like TestDisk and PhotoRec to attempt to recover lost files. These tools can scan the hard drive and restore deleted or damaged files.
2. Check the mount point: Ensure that the mount point is correct by using the “df -h” command to verify.
3. Check the file system: Use the fsck command to check the integrity of the file system and repair any errors. For example, if the disk uses the ext4 file system, you can use the sudo fsck.ext4 /dev/sdX command to check and repair it.
4. Check disk partitions: Use the fdisk or parted commands to inspect the situation of disk partitions. Make sure the partitions are correct and there are no unexpected partitions or formatting operations.
5. Restore from Backup: If there is a backup file available, you can try restoring the lost files from the backup.
6. Seeking professional help: If none of the above methods solve the problem, consider seeking assistance from Linux professionals who may have more advanced recovery methods or tools.

Important reminder: Before proceeding with any operation, please make sure to back up important files to avoid any further data loss.