Prevent do-release-upgrade from disabling 3rd party repos

[Tommy Trussell]

On Fri, Aug 30, 2024 at 7:49 PM Sam Varshavchik <mrsam at courier-mta.com>
wrote:

> Tommy Trussell writes:
> > When you upgrade package A there may be no changes needed to data files
> etc.
> > Maybe this is true for 90% of packages.
>
> Since I'm building the packages, and I'm the one who wrote those
> packages,
> I'm fairly certain that I know how the upgrade process would work.
>

I realize this; I apologize that I did not write it very clearly -- I meant
the UBUNTU packages, not yours.

I did not mean to impugn your expertise. I was just writing through how I
would think about it, and it sounds like you have moved to the next
stage, finding the design issue that is blocking you. It sounds like the
upgrade tool is a bit "brittle." I think I have read exactly this issue
described somewhere else...

I still think you might do best starting with the process for installing
your software on a pristine Ubuntu system from scratch, and build your
upgrade procedure from there. Hopefully that would be less brittle than
do-release-upgrade, which of course does all sorts of funky stuff while
it's running so that it can "change the tires on a moving car."
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