The USB protocol and UEFI aren’t a problem, but Android/iOS might be. I’ve booted various PCs from a raspberry pi (USB-OTG), but the last time I tried to boot an iso from my android phone I couldn’t get it to work. It’s been a while so I can’t remember exactly what the issue was.
The problem isn’t on the PC side, though. It’s on the side of the device that has to choose between host or device. The PC is always a host, so special support in UEFI isn’t needed.
The USB protocol and UEFI aren’t a problem, but Android/iOS might be. I’ve booted various PCs from a raspberry pi (USB-OTG), but the last time I tried to boot an iso from my android phone I couldn’t get it to work. It’s been a while so I can’t remember exactly what the issue was.
My guess the issue is that phones don’t just show up as simple drives, they rely on MTP support
Yeah, that sounds right.
That’s what I was referring to with “which interface to present.”
The problem isn’t on the PC side, though. It’s on the side of the device that has to choose between host or device. The PC is always a host, so special support in UEFI isn’t needed.