Re: Aptitude and apt-get curiosity.....

[Lisi <lisi.reisz@gmail.com>]

On Tuesday 05 April 2011 23:35:08 Charlie wrote:
> Trying to satisfy a curiosity.
>
> I upgrade my Debian Wheezy system with aptitude and it upgrades all but
> one application file.
>
> Redo: "aptitude update" and it shows that file hangs around for
> several days and doesn't get upgraded when I do aptitude
> "safe-upgrade" after "aptitude update" each time day after day.
>
> So I do apt-get update and apt-get upgrade and the file is upgraded.
>
> Why does aptitude just ignore it again and again and apt-get upgrade it?

You are telling aptitude to run safe-upgrade.  You are telling apt-get to 
upgrade.  They are not the same thing.  You may have had something installed 
that conflicted with the new package, and you told aptitude that it mustn't 
remove anything.  I know very little about apt-get, but according to Aaron, 
who clearly does know about it, apt-get upgrade is equivalent to aptitude 
full-upgrade.  So apt-get upgrade presumably removed something and was able 
to upgrade;  aptitude didn't and couldn't.

You just need to remember that, in effect, if you run aptitude safe-upgrade 
you are telling aptitude that it mustn't remove anything.  This restriction 
may mean that it can't upgrade.

HTH,
Lisi