PS5 exFAT/PKG Builder v0.1.0

PS5 exFAT to PKG Builder v1.0

First public release of PS5 exFAT to PKG Builder, a Windows GUI tool designed to convert PS5 exFAT disk images into PKG packages.

The application provides a simple graphical workflow for mounting an exFAT image, copying its contents, building a PKG and verifying the final package.

Main Features

• Convert .exfat images to .pkg
• Graphical user interface
• Automatic exFAT image mounting through OSFMount
• PKG creation using LibProsperoPKG
• Selectable target firmware / SDK
• Firmware presets
• Support for custom SDK values
• Selectable output PKG location
• Selectable temporary working folder
• SHA-256 verification of copied files
• Conversion progress display
• Detailed conversion logs
• PKG Builder included
• Original exFAT image is not modified

Conversion Workflow

exFAT image → mount image → copy files → build PKG → verify package

The application reads the selected exFAT image, mounts it, copies the required files into the temporary working directory and then builds the final PKG.

Installation / How to Start

1. Download the release archive.
2. Extract the archive completely to a folder.
3. Right-click START.cmd.
4. Select Run as administrator.
5. Wait for the setup/build process to finish.
6. When it is complete, launch AVVIA.cmd.
7. The application will start.
8. Open the exFAT → PKG tab.
9. Select your .exfat image.
10. Choose the output location for the .pkg.
11. Select a temporary working folder.
12. Select the desired firmware / SDK preset.
13. Click Convert to PKG.

Requirements

• Windows 10 or Windows 11
• Administrator privileges for START.cmd
• OSFMount
• Enough free disk space for temporary files and the final PKG
• Enough free space is especially important when processing large exFAT images

Firmware / SDK Selection

The application allows you to select the SDK / firmware metadata used during PKG creation.

Available firmware presets can be selected directly from the GUI.

Custom SDK values can also be entered when required.

Important

Changing the declared SDK only changes package metadata.

It does not automatically backport game code and does not guarantee that a game will work on an older firmware.

Game compatibility still depends on the executable, libraries and other files contained inside the package.

File Verification

The option:

Verify SHA-256 of copied files

can be enabled to verify copied files before the PKG build process.

This requires an additional read pass and may increase the total conversion time, especially with large images.

Credits

Tool developed by Zer0Day.

Thanks to EchoStretch and cragson for the A53 exploit.

Thanks to svenGDK for LibProsperoPKG.

exFAT workflow reference: kerrdec97 / ps5-exfat-builder

Original components retain their respective authors and licenses.

Notes

This is the first public release.

The tool is still under development and future versions may include additional improvements, compatibility fixes and new features.

If you encounter an issue, please include the application log when reporting it.