[Yum] "yum install postfix" tries to install netqmail instead

[seth vidal]

On Mon, 2008-09-22 at 18:06 -0600, quellyn at cybermesa.com wrote:
> Hello,
> 
> I have a RHEL 5 system which is subscribed to the Red Hat Network for system
> updates and also attached to a local yum repository. In this local repository
> I have a custom-rolled rpm for netqmail, which we use on other machines in our
> site.
> 
> When I attempt to install postfix on the system, it doesn't exactly perform as
> expected:
> 
> > [root at somehost ~]# yum install postfix
> > Loading "security" plugin
> > Loading "rhnplugin" plugin
> > somehost.local-instal 100% |=========================| 1.1 kB    00:00     
> > rhel-x86_64-client-w 100% |=========================| 1.2 kB    00:00     
> > rhel-x86_64-client-s 100% |=========================| 1.2 kB    00:00     
> > somehost-install         100% |=========================| 1.1 kB    00:00     
> > rhel-x86_64-client-5 100% |=========================| 1.2 kB    00:00     
> > rhn-tools-rhel-x86_6 100% |=========================| 1.2 kB    00:00          
> > Excluding Packages in global exclude list
> > Finished
> > Setting up Install Process
> > Parsing package install arguments
> > Resolving Dependencies
> > --> Running transaction check
> > ---> Package netqmail.x86_64 0:1.05-SEC.1_FC6 set to be updated
> > --> Processing Dependency: ucspi-tcp >= 0.88 for package: netqmail
> > --> Processing Dependency: daemontools >= 0.76 for package: netqmail
> > --> Running transaction check
> > ---> Package daemontools.x86_64 0:0.76-SEC.25_FC6 set to be updated
> > ---> Package ucspi-tcp.x86_64 0:0.88-SEC.16_FC6 set to be updated
> > --> Finished Dependency Resolution
> >
> > Dependencies Resolved
> >
> > =============================================================================
> >  Package                 Arch       Version          Repository        Size
> > =============================================================================
> > Installing:
> >  netqmail                x86_64     1.05-SEC.1_FC6   somehost-install  405 k
> > Installing for dependencies:
> >  daemontools             x86_64     0.76-SEC.25_FC6  somehost-install   63 k
> >  ucspi-tcp               x86_64     0.88-SEC.16_FC6  somehost-install   89 k
> >
> > Transaction Summary
> > =============================================================================
> > Install      3 Package(s)         
> > Update       0 Package(s)         
> > Remove       0 Package(s)         
> >
> > Total download size: 558 k
> > Is this ok [y/N]:
> 
> As you can see, it tries to install netqmail from the local repos instead.
> 
> I've done a "yum clean all" and even completely wiped out /var/cache/yum, but
> the behavior is consistent unless I take the drastic measure of completely
> removing netqmail from my local repositories. Then yum finds and installs
> postfix from the Red Hat Network repos.
> 
> All I can figure is that yum is preferentially looking for a capability match
> here (netqmail being an alternative mail package to postfix) rather than
> looking for an exact package name match. If this is the case, is there any way
> to disable this?
> 
run this:
yum list obsoletes

on a system w/o netqmail installed.

or on a system with netqmail installed run:

rpm -q --obsoletes netqmail

I think you'll find your culprit.

-sv


-sv