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Re: Apt-get vs Aptitude vs Apt

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  Re: Apt-get vs Aptitude vs Apt Johann Klammer <klammerj@a1.net> - 2020-08-08 13:40 +0200
    Re: Apt-get vs Aptitude vs Apt Joe <joe@jretrading.com> - 2020-08-08 14:20 +0200

#226008 — Re: Apt-get vs Aptitude vs Apt

On 08/07/2020 10:10 PM, Joe wrote:
> On Fri, 7 Aug 2020 13:31:53 -0400
> Default User <hunguponcontent@gmail.com> wrote:
> 
>> Hey guys,
>>
>> Recently there was a thread about aptitude dependency resolution
>> limitations.
>>
>> Years ago, I believe I read in the Debian documentation that aptitude
>> was preferred to apt-get, because it seemed to have better dependency
>> resolution.
>>
>> Now, we have apt, as well.
>>
>> So, all other things being equal, which is currently considered to be
>> the best at dependency resolution?
> 
> I believe it is still aptitude.
> 
> However, the length of time it takes increases sharply with number of
> packages to be upgraded. If you have more than a hundred or so, (not
> unusual on unstable) it may take a very long time. It is usually not
> the method recommended for upgrading Debian stable to the next version.
> 
If you make use of the accept/reject function it gets kinda acceptable.
In the dependency resolution screen you can press a and r to accept and 
reject the selected action. 
together with ',' and '.' you'll get where you want.

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#226009

On Sat, 08 Aug 2020 13:06:50 +0200
Johann Klammer <klammerj@a1.net> wrote:

> On 08/07/2020 10:10 PM, Joe wrote:
> > On Fri, 7 Aug 2020 13:31:53 -0400
> > Default User <hunguponcontent@gmail.com> wrote:
> >   
> >> Hey guys,
> >>
> >> Recently there was a thread about aptitude dependency resolution
> >> limitations.
> >>
> >> Years ago, I believe I read in the Debian documentation that
> >> aptitude was preferred to apt-get, because it seemed to have
> >> better dependency resolution.
> >>
> >> Now, we have apt, as well.
> >>
> >> So, all other things being equal, which is currently considered to
> >> be the best at dependency resolution?  
> > 
> > I believe it is still aptitude.
> > 
> > However, the length of time it takes increases sharply with number
> > of packages to be upgraded. If you have more than a hundred or so,
> > (not unusual on unstable) it may take a very long time. It is
> > usually not the method recommended for upgrading Debian stable to
> > the next version. 

> If you make use of the accept/reject function it gets kinda
> acceptable. In the dependency resolution screen you can press a and r
> to accept and reject the selected action. 
> together with ',' and '.' you'll get where you want.

Yes, but the time taken is to actually calculate the action offered.
For a few hundred packages, that can be a couple of hours. I expect
installation to take a significant time. 

I recall giving up once after about six hours, but I can't recall how
many packages were involved. It was a first unstable upgrade in about
six months, I try not to let it go that long, and upgrade my unstable
workstation almost every day.

-- 
Joe

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