Bug 238374

Summary:	yum processing of Conflicts: vs. arch choice.
Product:	[Fedora] Fedora	Reporter:	David Woodhouse <dwmw2>
Component:	yum	Assignee:	James Antill <james.antill>
Status:	CLOSED INSUFFICIENT_DATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	9
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2008-05-30 15:29:05 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	235752

Description David Woodhouse 2007-04-29 23:06:34 UTC

# rpm -qp --conflicts testpkg-1-1.ppc.rpm 
kernel-ppc64  
 # rpm -qp --conflicts testpkg-1-1.ppc64.rpm 
(none)
 # yum install testpkg
Loading "installonlyn" plugin
Setting up Install Process
Parsing package install arguments
Resolving Dependencies
--> Running transaction check
---> Package testpkg.ppc64 0:1-1 set to be updated
---> Package testpkg.ppc 0:1-1 set to be updated
--> Processing Conflict: testpkg conflicts kernel-ppc64
--> Finished Dependency Resolution
Error: testpkg conflicts with kernel-ppc64
 # yum install testpkg.ppc64
Loading "installonlyn" plugin
Setting up Install Process
Parsing package install arguments
Resolving Dependencies
--> Running transaction check
---> Package testpkg.ppc64 0:1-1 set to be updated

Dependencies Resolved

=============================================================================
 Package                 Arch       Version          Repository        Size 
=============================================================================
Installing:
 testpkg                 ppc64      1-1              test              4.4 k

Transaction Summary
=============================================================================
Install      1 Package(s)         
Update       0 Package(s)         
Remove       0 Package(s)         

Total download size: 4.4 k
Is this ok [y/N]: y
Downloading Packages:
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing: testpkg                      ######################### [1/1] 

Installed: testpkg.ppc64 0:1-1
Complete!



The 'Conflicts: kernel-ppc64' in testpkg.ppc was an attempt to make yum choose
the 64-bit version _just_ for this one package. Although choosing 32-bit is
correct for _almost_ everything in the distribution, there are one or two
packages where we actually want 64-bit -- systemtap, for example.

Making the 32-bit version conflict with a 64-bit kernel is one potential way to
meet that requirement, but it doesn't seem to have the desired effect -- even
with the skipbroken plugin.

The other approach I can think of is a yum plugin. But I don't like that because
it would have to have a hard-coded list of packages. Even if that list only
contains one or two packages, it's still a hard-coded list, which is bad.

Comment 1 David Woodhouse 2007-04-29 23:34:51 UTC

Oh, I lie. It _does_ work with the skipbroken plugin if I actually add
--skip-broken on the command line.

Comment 2 Jeremy Katz 2007-04-30 18:47:00 UTC

Which version of yum was this with?

Comment 3 David Woodhouse 2007-04-30 19:02:41 UTC

rawhide: 3.1.7

Comment 4 Seth Vidal 2008-03-12 14:21:43 UTC

Does this improve with multilib_policy=best? And other than a whitelist per-arch
for things like kernel, gdb, etc or labeling the packages with a special
provides I don't know of a way out of this particular problem.

Comment 5 Bug Zapper 2008-05-14 02:49:55 UTC

Changing version to '9' as part of upcoming Fedora 9 GA.
More information and reason for this action is here:
http://fedoraproject.org/wiki/BugZappers/HouseKeeping

Comment 6 Seth Vidal 2008-05-30 15:29:05 UTC

closing as insufficient_data but I do believe we've made it _better_ than it was