Been trying to make a GCE image back so far unsuccessful, still trying and hoping to triumph soon but if anyone has successfully done so already help me out or shoot some pointers. Cheers!
Can you explain what are you tried? And why your test failed?
Why are you trying to make an GCE compatible image of NethServer? If you need an instance of NethServer on Google Cloud you could make an Nethserver istallation over a Centos 6 instance, I’ve made the same thing over Amazon EC2.
You could find an How to in the Howto section of the forum
Let us know if it work