Ubuntu encourage upgrading between releases by running a command,
instead of by manually editing sources and getting on with it.
This tool's name is do-release-upgrade
, and I believe it should just be doing:
sed -i 's/wily/xenial/g' /etc/apt/sources.list /etc/apt/sources.list.d/*
This command does not explain what it wants to do, or why it is doing anything. It has, in the past:
- Disabled repos I was using, and hence broken the software in them.