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Re: Plasma 5.7.2 in Debian?



On zaterdag 27 augustus 2016 23:12:50 CEST Luigi Toscano wrote:
> It's probably not this case, but in general safe-upgrade is not enough. 

I disagree. In general safe-upgrade is enough and only in 'exceptional' cases 
it is not.

> In some cases you need to remove a package to proceed and safe-upgrade (if I
> read its documentation correctly (*)) does not do that. So the status is
> fine when it's full-upgrade-proof (aka apt dist-upgrade).

Then either the documentation is outdated or it states that *manually* 
installed packages are not removed with safe-upgrade.
So if you do 'aptitude install <pkg1>' then pkg1 will not be removed with 
'aptitude safe-upgrade' and imo that is the proper behavior as you've made 
explicit that you want pkg1 installed.

But if a package gets installed because it is a dependency or a recommends and 
thus marked as *automatically* installed, then safe-upgrade will remove it 
once it has determined that no other package needs it (depends/recommends).

There are cases where you do need to use full-upgrade, but that very likely 
means that a package is marked as manually installed, while it should've been 
marked as automatically installed. You can change that state through 'aptitude 
markauto <pkg>' or 'aptitude unmarkauto <pkg>'.
And with that you can configure your system in a way that 'aptitude safe-
upgrade' really is all you need.

HTH,
  Diederik

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