Using Pegasus R12 on a Modern Mac

To use a Pegasus R12 on a modern Mac, install the latest Pegasus R12 DEXT driver and PROMISE Utility Pro for storage management.

Downloads:

Installing the Pegasus R12 DEXT Driver for Thunderbolt Connection on macOS

The Pegasus R12 DEXT Driver must be installed before connecting the Pegasus R12 to the Thunderbolt port of your Mac with the Thunderbolt Cable. This driver supports macOS 12.4 or later.

Preliminary Check

  1. Verify macOS Version: Click on the Apple symbol in the upper left corner and select About This Mac to confirm your system meets the macOS 12.4 or later requirement.

Installation Steps

1. Download the Driver: Use the provided link.

2. Run the Installer:

  • Double-click the downloaded .pkg file.
  • Click Continue when the installer menu appears.

3. Standard Installation:

  • Click Install and enter your password to authorize.
  • If reinstalling, enter your password to modify the existing driver.

4. Enable Driver Extensions:

  • If prompted with Driver Extension Blocked, go to System Settings > Extensions > Driver Extensions.
  • Click Allow and confirm with your Mac password.

  • Enable the PegasusPro DEXT Driver Installer by entering your password again.

5. Complete Installation: Once you see a success message, click Close.

6. Verify Installation: Check for the DEXT Driver Installer in Applications or Mac Terminal.

Use either of these methods to confirm successful installation:

  • Method #1: PegasusPro DEXT Driver Installer

    • Go to Applications and double-click PegasusPro DEXT Driver Installer.
    • If installed, you’ll see an "Uninstall" option in the pop-up window.

  • Method #2: Mac Terminal 
  1. Open Terminal and enter: sudo -s . Input your password when prompted.
  2. Then, enter: systemextensionsctl list | grep pegasus
  3. Look for "activated enabled" in the output to confirm activation.

Note : If the screenshot output below says "activated waiting for user" after entering systemextensionsctl list | grep pegasus , This indicates that the driver is installed but requires manual approval in your Mac security settings before it can function properly. Enable the PegasusPro DEXT Driver Installer  via Driver Extensions and restart your Mac . After rebooting, run the following command again (systemextensionsctl list | grep pegasus) to confirm the driver status says "activated enabled" 

Final Steps

  1. Power Down the Pegasus R12: Press the power button to shut down the device
  2. Reconnect and Restart: Power on the Pegasus R12 and connect it to the Mac with the Thunderbolt Cable.

Your Pegasus R12 is now ready to use with Thunderbolt on macOS.

Updating Firmware in a Pegasus R12

A. Online Firmware Update

  1. Open PROMISE Utility Pro and go to the Firmware Update menu.
  2. Use the Online option to check the firmware version. If an update is available, click Update.
  3. The utility downloads and updates the firmware automatically.
  4. Restart the computer once the process is complete. After rebooting, the Pegasus R12 will be ready to use.

B. Manual Firmware Update

  1. Download Firmware: Pegasus R12 Firmware
  2. Update Using PROMISE Utility Pro:
    • Open PROMISE Utility Pro and go to Firmware Update.
    • Click Update, then confirm the action in the pop-up menu.
    • Drag the downloaded .img firmware file into the utility.
    • The utility uploads and updates the firmware.
  3. Complete Update: Restart the Mac after the process finishes.

The firmware update process is the same for both online and manual methods.

Notes

  • Always eject the Pegasus R12 volume before disconnecting it from the Mac.
  • Keep the PROMISE Utility Pro software updated for optimal performance.
  • Contact Promise Technology Support for assistance if you encounter any issues.