Comment 6 for bug 1689309

And when I mean editing the /etc/network/interfaces, I mean /target/etc/network/interfaces at the end of the installation once netcfg purged and recreated it. Such that the installed system has correct interfaces.

Looking at the interfaces from the logs, it only has one vlan defined. Thus ence530.209 is missing from /target/etc/network/interfaces which needs to be adjusted when installer offers to "finish & reboot", by going back to the main menu and dropping into the shell, editing that file, and updating initramfs in-target.