Comment 9 for bug 1917292

So our script for installing the EFI signed packages could use a refactor. If it was properly constructed, **assuming Internet was available**, one could have gotten around this issue. Right now, it forces the assumption that there is no Internet, so some small blame can be placed there.

One can resolve this by removing the following lines from /etc/calamares/modules/before_bootloader_context.conf:

        - command: sed -i '/deb http/d' /etc/apt/sources.list
              timeout: 10

There's a task to fix up the script here:
https://phab.lubuntu.me/T200

However, this is still not the cause of our problems.