Installing the macOS Pegasus DEXT Driver




The PegasusM4 Direct Extension (DEXT) driver offers seamless compatibility with various Pegasus models on macOS, providing enhanced performance and reliability without the need for altering boot permissions. It's crucial to note that the DEXT driver is specifically designed for use with all Pegasus models except the Pegasus Pro and the Pegasus2 R2+. While macOS officially introduced support for DEXT drivers starting from Big Sur (v11.0), the Pegasus DEXT driver extends its compatibility to Monterey (v12.0) and subsequent versions. It's essential to adhere to the installation guidelines to ensure proper functionality. This guide emphasizes installing the DEXT driver exclusively, as attempting to install both the KEXT and DEXT drivers concurrently may lead to conflicts. Additionally, the DEXT installer automatically removes any existing Pegasus Kernel Extension (KEXT) drivers during installation for seamless integration.




Download the DEXT Driver:

Navigate to the PegasusM4 downloads page to access the latest DEXT driver.



Download the driver from the provided link, typically packaged as a disk image (dmg file).

Open the Disk Image:


Locate the downloaded dmg file and double-click to mount the disk image.

Run the Installer:


Within the mounted disk image, double-click on the installer package to initiate the installation process.





Upon running the installer, you'll be prompted to enter your system password to authorize the installation.

Manual Driver Approval:


As a security measure, macOS requires users to manually approve the installation of drivers.

Select "Open System Settings" when prompted by the installer to navigate to the appropriate system preferences.

In System Preferences, navigate to Security & Privacy > General, where you'll likely find a message stating that the system extension was blocked. Click on "Allow" to grant approval for the Pegasus DEXT driver.


Completion and Verification:


Once approved, the installer will proceed with installing the DEXT driver.

If a Pegasus device is connected to your Mac, the corresponding volume should mount within a minute, indicating successful installation.

Final Steps:


After installation, an application will be created in the Applications folder. It's crucial to note the following:




Do not run the application immediately: The driver has already been installed, and running the app at this stage will prompt uninstallation.

Driver Management: The application serves as a tool for managing the driver. Running the app when the driver is uninstalled will trigger the installation process, while running it with the driver installed will initiate uninstallation.

Uninstallation: Deleting the application will uninstall the driver from your system.

By following these steps meticulously, users can seamlessly install and manage the Pegasus DEXT driver on their macOS system, ensuring optimal performance and compatibility with their Pegasus storage devices.