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Installation on 2012 Mac Mini

Hi everyone!

Through a recommendation from a friend I've made the decision to retire my USG and to switch over to the XG Firewall. I have a 2012 Mac Mini with secondary thunderbolt NIC to host the XG Firewall. Unfortunately I'm hitting a roadblock in the installation process of the Sophos XG Firewall Home on my Mac Mini.

So far I've followed the steps outlined on the XG Firewall support page;

1. I ran the terminal command to convert the ISO to DMG

2. I ran the diskutil command to mount the new DMG file to my flash drive.

 

When I restart and select my flash drive as the boot device I get the following error: 

Starting Firmware Installation

Failed getting ISO disk

press y to reboot

 

Is there anyone who has done any similar installations that can offer any recommendations? Please keep in mind I am a novice!



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