It's been a while since this, but for people looking into having Sophos on a PCEngines APU board, I can tell you this really got MUCH easier with XG firewall.
I just received my APU2C4 board with 4Gb of RAM and I must say I'm quite impressed. I have a 300Mb down 30Mb up WAN and this little thing really manages it great. In fact, if I download at full speed the CPU is at about 30%. I havent enabled anything but firewall (obviously) and web proxy (with antivirus) for now but I don't feel any lag whatsoever. I still have to do more testing though.
To install XG in a new PCEngines APU2 board, just follow these steps:
- Install SSD of your choice and burn the XG ISO in a CD
- Connect the serial cable to your serial port
- Connect to the serial console using Putty and choose 38400 as speed
- Boot it up and run from the CD. Follow the instructions to install it, but basically this means you just have to press "y" once and it will install everything, really.
If you wanted to do a blind installation (without serial) you could just hook up the USB CD reader, connect the power, wait about 1-2 minutes to give it time to ask for confirmation and then press "y". Wait another 5-10 minutes to allow it time to install.
After the installation has finished you wont hear 5 beeps. Instead you will hear a music tune through the inbult speaker!! That's when you can remove the CD, disconnect the power from the APU and put it back on.
Lastly, just connect your computer to port 1 and you will get an IP automatically (otherwise just put yourself at 172.16.16.17) and you can access https://172.16.16.16:4444 and start configuring it!
Thanks Sophos for making XG a console-friendly install!!