Bug#849312: apt: dist-upgrade removes pkgs instead of upgrading them

[Olaf van der Spek <olafvdspek@gmail.com>]

2016-12-25 10:25 GMT+01:00 Julian Andres Klode <jak@debian.org>:
>> # apt dist-upgrade
>> The following packages will be REMOVED:
>>   mariadb-server mariadb-server-10.0 mariadb-server-core-10.0
>> 0 upgraded, 0 newly installed, 3 to remove and 0 not upgraded.
>
>> # apt install mariadb-server
>> 1 upgraded, 7 newly installed, 4 to remove and 0 not upgraded.
>
> This one removes a package more (and in addition to that also does
> other changes), so it really is worse solution than just removing
> mariadb-server altogether.

That's not true right?
I think we agree the proper solution being to upgrade mariadb from 10.0 to 10.1.
Only removing packages is (I think always) worse then a no-op.

Can't it detect mariadb-server-10.1 being a proper upgrade of
mariadb-server-10.0 and hence scoring this as neutral or positive?

> I'm not sure, but maybe we are not weighting removals of automatically
> installed packages lower than removals of manually installed packages?

Ideally the removal should be irrelevant here, if you can detect it as
an upgrade.


-- 
Olaf