Comment 6 for bug 1749289

I tested the test package for Xenial in ppa:dgadomski/ubiquity-lp1749289 and it gives me a choice instead of failing now. After pressing Cancel on the first screen, I get:

Your system is not yet configured. Press 'a' to try again, 's' for a recovery shell, or 'r' to reboot.
[asr]

I did an OEM install and run these commands right before the oem-config-prepare step:

sudo add-apt-repository ppa:dgadomski/ubiquity-lp1749289
sudo apt-get update
sudo apt install ubiquity
sudo oem-config-prepare

Looks good to me.