Re: -Upgrading RPMs

[James Olin Oden <joden malachi lee k12 nc us>]

On Wed, 5 Nov 2003, puneet puri wrote:

> a) If A-1-1 needs B-1-1 and we want to Upgrade only
> B-1-1  , then would the RPM allow to upgrade B-1-1 ? 
>
It depends on the exact requirement A-1-1 has for B-1-1.  For instance:

	Requires:  A >= 1-1

Would be fine, but if it instead:

	Requires:  A = 1-1

Then you would have to update A-1-1 also, as A-1-1 explicitly requieres
a specific version (note really should be using epochs in these examples).
 
> b) If we are not aware of what packages need B-1-1 can
> we still simply go ahead and upgrade only B-1-1 ?
> using the -Upgrade command
>
You can find out what is needed by B-1-1, by doing the following:

	rpm -q B-1-1 --requires

 
> For e.g   rpm -Uvh B-2-2.rpm
>
If you try and it does not work, then you know (-;.  

Cheers...james
 
> Thanks
> Puneet
> 
> --- James Olin Oden <joden@malachi.lee.k12.nc.us>
> wrote:
> > On Tue, 4 Nov 2003, puneet puri wrote:
> > 
> > > a) Can the -U option be used to upgrade a
> > installed
> > > package when dependencies( pre-requisite ) exist
> > on it
> > > ?
> > > 
> > Yes, but you want to include the the prerequisite in
> > the same transaction.
> > For instance if rpm A-1-1 is installed, and A-1-2
> > needs B-1-2, you would 
> > do:
> > 
> > 	rpm -Uvh A-1-2.noarch.rpm B-1-2.noarch.rpm
> > 
> > > b) Does the Upgrade of an RPM remove the already
> > > existing files if they are not a part of the new
> > RPM ?
> > > ( or its has to be handled manually using the
> > > preinstall section of the spec file)
> > >
> > Its automatically handled.  An upgrade is an
> > implicit install followed by 
> > an implicit erase.  The trick is that it only erases
> > files not belonging 
> > to the new package.
> > 
> > Cheers...james 
> > > -Thanks
> > > Puneet
> > > 
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