Reason 4 to fix this behavior:
4 Upgrade fails on machines that are intentionally kept from internet access (e.g., backend database servers or reverse proxy servers) because they can't see ubuntu.com. (This just happened to me.)
Reason 4 to fix this behavior:
4 Upgrade fails on machines that are intentionally kept from internet access (e.g., backend database servers or reverse proxy servers) because they can't see ubuntu.com. (This just happened to me.)