question on "smart upgrade --dump"

[Werner Flamme]

Gustavo Niemeyer schrieb am 23.01.2007 16:20:
> (...)
>> What is the difference between "smart upgrade" and "smart install ..." 
>> (where "..." means the list of the packages that is shown with "smart 
>> upgrade --dump")?
> 
> There's an error in the implementation of --dump.  When you ask
> Smart to upgrade your system, it will consider many different
> settings, including RPM obsoletes and the priorities you have
> provided on channels and on individual packages.  These settings
> may lead to packages being in the "downgrading" list.
> 
> When Mauricio implemented the --dump option, he forgot about
> that detail in the upgrade implementation.  I'll make sure that
> in the next Smart release these packages are also listed in the
> dump output.
> 
> Thanks for notifying us.

Hmmmm.... what I still do not understand is the difference between smart 
install and smart upgrade.

When smart considers different settings, this is only when I do a smart 
upgrade and not a smart install?

As I tried to say: when I do a "smart upgrade --dump", I get the list of 
packages that need to be upgraded. When I take the output list and put it 
after a "smart install", only those packages are installed, without the 
need tzo downgrade or remove any other package. Maybe there's an additional 
package to be installed because of a new dependency, but that's all.

By seeing that "smart install [package list]" does its job fine, I think 
it's not an error of the --dump option, but of the calculation for "smart 
upgrade" ;-)

> 
>> BTW, using "smart --gui", selecting "View -> Hide non-upgrades" and
>> selecting the packages one by one to "upgrade" does not cause this
>> bulk of dependencies.
> 
> Of course. Ultimately, you can select *all* packages marked to
> be changed in an upgrade to be kept in their original state.
> 
> Upgrading is an operation that computes a candidate state to your
> system based on settings you have provided in the past and relations
> between packages.  You may opt to not do any of the suggested
> operations.  You're also welcome to change these settings again,
> which will then produce a different candidate state.

Yes, I understand this. But what is the difference between the candidate 
state computed with "smart install" and "smart upgrade", when I tell smart 
to install exactly those packages that are shown with "smart upgrade --dump"?

And, best of all: I use smart in the most up to date version on my offive 
PC (that's where I am now) running SUSE 10.0 x86_64, on my home PC (SUSE 
10.1) and on my laptop (openSUSE 10.2). I notice the different behaviour of 
"smart upgrade" and "smart install" only on my office PC...

Regards
Werner

-- 
Werner Flamme, Abt. WKDV
Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
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Tel.: (0341) 235-3921 - Fax (0341) 235-453921
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