we are using virtual Management Center 7.1.2 connected to an internal network. For Update Checks we are using a webproxy which is configured in EMCs Settings.
Release Notes says that you need internet access during upgrade. I tried to update our test-EMC but it failed because of lack of internet. Obviously the webproxy-settings within EMC are not used during upgrade. I thought about editing webproxy-setting into Ubuntus etc-Files but I am not sure if this would cause problems during upgrade.
Whats the simpliest or most supported way to upgrade an EMC without direct internet access?