Yes, when you run the mkfs (make filesystem) command on a storage device, it typically erases the existing filesystem and its data. This process formats the device, creating a new filesystem structure, which makes the previous data inaccessible.
Key Points:
- Data Loss: All existing data on the device will be lost.
- Filesystem Creation: It prepares the storage for a new filesystem, such as ext4, NTFS, etc.
If you need to preserve data, ensure you back it up before using mkfs. If you have more questions or need further clarification, feel free to ask!
