Re: Re: apt or apt-get equivalent of 'aptitude --show-why upgrade'
Thanks for the prompt reply!
The Wanderer wrote:
On 2017-08-02 at 11:44, Christoph Groth wrote:
> I'm running Debian testing and would like to upgrade from
> "oldtesting" (jessie) to current testing. I noticed that 'apt
> upgrade' as well as 'apt-get upgrade' want to install the
> 'pulsaudio' which I've been avoiding successfully so far.
That's a little weird. According to the apt-get man page,
never install a package which is not already installed.
Sorry, I was a bit imprecise. The three tools (apt-get, aptitude
& apt) behave in slightly different ways. I should have simply
asked whether there is any way (other than aptitude's option) to
know why something is about to be installed either by "upgrade" or
The 'upgrade' command for apt behaves differently; that one will
new packages if needed, but will never remove an existing
Are you certain that both commands produce the same
> I could of course uninstall pulseaudio after the upgrade, but
> wonder whether a more elegant solution does not exist.
Try 'apt-get upgrade pulseaudio-'; the trailing hyphen should
apt-get to remove the package, which in this case means not
it. I more usually use this sort of thing with dist-upgrade, but
it should work for upgrade as well.
Thanks, this works (with a small modification). If I execute
'apt-get full-upgrade pulseaudio-' APT suddenly wants to install
pulsaudio:i386 along with dozens of other i386 packages. (I'm
aware of multiarch and use it, but didn't know that packages from
one arch can substitute others.) Executing 'apt-get full-upgrade
pulseaudio- pulseaudio:i386-' does the trick.