Installation image (ISO) not UEFI bootable

Question

The motherboard I am using only supports UEFI OS. When I attempt to create a USB boot drive using Rufus with "GPT partition scheme for UEFI" setting I get the error... 
 "Unsupported ISO - When using UEFI Target Type, only EFI bootable ISO images are supported. Please select an EFI bootable ISO or set the Target Type to BIOS" 
 If I use the MBR partition scheme for UEFI, the server will not recognize the boot drive. Win32DiskImager and Etcher did not work either. I also used IPMI to mount the ISO but it still wasn't recognized. 
 Does Sophos have an ISO that is EFI bootable? I am using a new SuperMicro SuperServer E200-9A. Their support says I must use a EFI bootable ISO and GPT partition scheme. Does anyone have a solution to this problem?

MacOlaf · Answer

I just downloaded and installed Untangle v16 beta... It has UEFI install and boot as of v16... choice what to use with my SuperMicro Denverton MB has been made

rfcat_vk · Answer

Hi, 
 the issue is not seen as a high priority because the issue only affects non paying customers in the majority. 
 Ian

Stephen Stacha · Answer

Unfortunately no, 
 I ended up going with pf sense. I understand that this may not be a factor for their UTM product. You might try that. Just realize the licensing is different. It is not licensed by proc cores and RAM. Instead it is by devices or DHCP ips (50) for the free version as I understand it. That may be a deal breaker with as many devices as we have now with IOT devices, phones, routers etc. It was for me. The only other suggestion I can give is the same that was given to me. Try pfSense. It may not be as easy to use as Sophs products but it has gotten alot better with not having to leave the console for daily config tasks and monitoring. The only thing I am waiting for on pfSense is for the 10gig ports to be recognized. UEFI and 1gig ports are not a problem. Hope this helps.

Installation image (ISO) not UEFI bootable

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