[CentOS-devel] Out of date qemu-kvm-ev packages (bug preventing it from being updated?)

[Lamar Owen]

On 11/15/2016 10:28 AM, Sandro Bonazzola wrote:
> On Tue, Nov 15, 2016 at 5:20 PM, Lamar Owen <lowen at pari.edu> wrote:
>
> Karanbir Singh wrote:
> >if we were to try and resolve this without >removing rpms, what would
> >that solution look like ?
>
> Increment epoch.  Almost as tasty as removing rpms.
>
>
> incrementing epoch will cause a chain of other issues so I don't think 
> it's the good way to go here.
>
>
Oh, I know it would; I said that more than a little bit 
tongue-in-cheek.  I would say that removing the faultily-named rpms is 
the correct first step.  Then we have to use yum's downgrade to get the 
current version.  This, by the way, actually works:
+++++++++++++++++++++++
[root at localhost ~]# yum downgrade qemu-*-ev
Loaded plugins: fastestmirror, langpacks, nvidia
Loading mirror speeds from cached hostfile
  * base: mirrors.advancedhosters.com
  * elrepo: reflector.westga.edu
  * epel: archive.linux.duke.edu
  * extras: mirrors.advancedhosters.com
  * nux-dextop: mirror.li.nux.ro
  * trinity-r14: kuiper.mirrorservice.org
  * trinity-r14-noarch: kuiper.mirrorservice.org
  * updates: repo1.ash.innoscale.net
Resolving Dependencies
--> Running transaction check
---> Package qemu-img-ev.x86_64 10:2.3.0-31.el7_2.21.1 will be a downgrade
---> Package qemu-img-ev.x86_64 10:2.3.0-31.el7.16.1 will be erased
---> Package qemu-kvm-common-ev.x86_64 10:2.3.0-31.el7_2.21.1 will be a 
downgrade
---> Package qemu-kvm-common-ev.x86_64 10:2.3.0-31.el7.16.1 will be erased
---> Package qemu-kvm-ev.x86_64 10:2.3.0-31.el7_2.21.1 will be a downgrade
---> Package qemu-kvm-ev.x86_64 10:2.3.0-31.el7.16.1 will be erased
---> Package qemu-kvm-tools-ev.x86_64 10:2.3.0-31.el7_2.21.1 will be a 
downgrade
---> Package qemu-kvm-tools-ev.x86_64 10:2.3.0-31.el7.16.1 will be erased
--> Finished Dependency Resolution

Dependencies Resolved

================================================================================
  Package              Arch     Version Repository        Size
================================================================================
Downgrading:
  qemu-img-ev          x86_64   10:2.3.0-31.el7_2.21.1 centos-qemu-ev   
792 k
  qemu-kvm-common-ev   x86_64   10:2.3.0-31.el7_2.21.1 centos-qemu-ev   
449 k
  qemu-kvm-ev          x86_64   10:2.3.0-31.el7_2.21.1 centos-qemu-ev   
2.1 M
  qemu-kvm-tools-ev    x86_64   10:2.3.0-31.el7_2.21.1 centos-qemu-ev   
251 k

Transaction Summary
================================================================================
Downgrade  4 Packages

Total download size: 3.6 M
Is this ok [y/d/N]: y
Downloading packages:
(1/4): qemu-kvm-common-ev-2.3.0-31.el7_2.21.1.x86_64.rpm   | 449 kB   00:00
(2/4): qemu-img-ev-2.3.0-31.el7_2.21.1.x86_64.rpm          | 792 kB   00:00
(3/4): qemu-kvm-tools-ev-2.3.0-31.el7_2.21.1.x86_64.rpm    | 251 kB   00:00
(4/4): qemu-kvm-ev-2.3.0-31.el7_2.21.1.x86_64.rpm          | 2.1 MB   00:00
--------------------------------------------------------------------------------
Total                                              3.2 MB/s | 3.6 MB  00:01
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
   Installing : 
10:qemu-img-ev-2.3.0-31.el7_2.21.1.x86_64                    1/8
   Installing : 
10:qemu-kvm-common-ev-2.3.0-31.el7_2.21.1.x86_64             2/8
   Installing : 
10:qemu-kvm-ev-2.3.0-31.el7_2.21.1.x86_64                    3/8
   Installing : 
10:qemu-kvm-tools-ev-2.3.0-31.el7_2.21.1.x86_64              4/8
   Cleanup    : 
10:qemu-kvm-tools-ev-2.3.0-31.el7.16.1.x86_64                5/8
   Cleanup    : 
10:qemu-kvm-ev-2.3.0-31.el7.16.1.x86_64                      6/8
   Cleanup    : 
10:qemu-img-ev-2.3.0-31.el7.16.1.x86_64                      7/8
   Cleanup    : 
10:qemu-kvm-common-ev-2.3.0-31.el7.16.1.x86_64               8/8
   Verifying  : 
10:qemu-kvm-common-ev-2.3.0-31.el7_2.21.1.x86_64             1/8
   Verifying  : 
10:qemu-kvm-tools-ev-2.3.0-31.el7_2.21.1.x86_64              2/8
   Verifying  : 
10:qemu-kvm-ev-2.3.0-31.el7_2.21.1.x86_64                    3/8
   Verifying  : 
10:qemu-img-ev-2.3.0-31.el7_2.21.1.x86_64                    4/8
   Verifying  : 
10:qemu-kvm-common-ev-2.3.0-31.el7.16.1.x86_64               5/8
   Verifying  : 
10:qemu-kvm-ev-2.3.0-31.el7.16.1.x86_64                      6/8
   Verifying  : 
10:qemu-img-ev-2.3.0-31.el7.16.1.x86_64                      7/8
   Verifying  : 
10:qemu-kvm-tools-ev-2.3.0-31.el7.16.1.x86_64                8/8

Removed:
   qemu-img-ev.x86_64 10:2.3.0-31.el7.16.1
   qemu-kvm-common-ev.x86_64 10:2.3.0-31.el7.16.1
   qemu-kvm-ev.x86_64 10:2.3.0-31.el7.16.1
   qemu-kvm-tools-ev.x86_64 10:2.3.0-31.el7.16.1

Installed:
   qemu-img-ev.x86_64 10:2.3.0-31.el7_2.21.1
   qemu-kvm-common-ev.x86_64 10:2.3.0-31.el7_2.21.1
   qemu-kvm-ev.x86_64 10:2.3.0-31.el7_2.21.1
   qemu-kvm-tools-ev.x86_64 10:2.3.0-31.el7_2.21.1

Complete!
[root at localhost ~]#
+++++++++++++++++++++++++++++++

Now you need to remove the faulty RPMs so that yum upgrade won't go back 
the other direction.