What is a .4FS file?
The .4FS file is a special kind of file that works with Puppy Linux, which is a version of the Linux operating system. This file helps save the current setup or "state" of the system's files and settings at a certain moment. Think of it like taking a snapshot of how everything on your computer is arranged and stored, so you can go back to that exact setup whenever you need to. This is especially useful if something goes wrong or if you want to return to a previous setup quickly.
Puppy Linux is unique because you can run it directly from a CD or a digital image file known as an .ISO, without installing it on your computer's hard drive. The .4FS file is part of how Puppy Linux manages files using its fourth version of the extended file system, also known as EXT4. This system is like a big cabinet where all your computer's files are organized and kept safe.
The "4" in .4FS stands for EXT4, which is the version of the file system Puppy Linux is using. There are other versions like EXT2 and EXT3, which use .2FS and .3FS files, respectively. These numbers help Puppy Linux understand which version of the file system it's working with.
To use a .4FS file, you need to be running Puppy Linux. This file is saved on a separate part of your computer's memory, called a partition, which helps keep your saved state secure, even when running Puppy Linux from a CD or an .ISO file.
In summary, a .4FS file is a save file for Puppy Linux that captures how everything in the system is set up at a certain point. It's used with the EXT4 file system and can be opened using Puppy Linux to restore the system to that saved state.
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