CentOS virt - May 2018 - Difference between qemu-kvm-ev and qemu-kvm-ma?

I see with the introduction of CentOS 7.5 there's a new qemu-kvm-ma package
on ppc64le (which is actually newer than qemu-kvm-ev currently). Does
anyone know what the difference is between these two packages? We currently
use qemu-kvm-ev and we've run into this bug [1] which got me wondering if
we should be switching to that package on ppc64le.

Thanks!

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1570533

-- 
Lance Albertson
Director
Oregon State University | Open Source Lab
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.centos.org/pipermail/centos-virt/attachments/20180510/9890ab21/attachment.html>

2018-05-10 21:57 GMT+02:00 Lance Albertson <lance at osuosl.org>:
> I see with the introduction of CentOS 7.5 there's a new qemu-kvm-ma
> package on ppc64le (which is actually newer than qemu-kvm-ev currently).
> Does anyone know what the difference is between these two packages? We
> currently use qemu-kvm-ev and we've run into this bug [1] which got me
> wondering if we should be switching to that package on ppc64le.
>
qemu-kvm-ma is the non-x86_64 counterpart for qemu-kvm, so it is present in
CentOS
and have some features disabled. Upgrade path is qemu-kvm -> qemu-kvm-ma
(as we
provided some packages on non-x86_64 archs) -> qemu-kvm-ev (in case you
enable CentOS Virt SIG QEMU repo).
Opposite way is not supported and will probably break.

Please wait a few days, libguestfs package will be updated fixing the bug
you've hit around next week.

Sadly, the new qemu-kvm-ev we prepared for CentOS 7.5 didn't get released (
https://bugs.centos.org/view.php?id=14764) but the new build is ready.





>
> Thanks!
>
> [1] https://bugzilla.redhat.com/show_bug.cgi?id=1570533
>
> --
> Lance Albertson
> Director
> Oregon State University | Open Source Lab
>
> _______________________________________________
> CentOS-virt mailing list
> CentOS-virt at centos.org
> https://lists.centos.org/mailman/listinfo/centos-virt
>
>

-- 

SANDRO BONAZZOLA

ASSOCIATE MANAGER, SOFTWARE ENGINEERING, EMEA ENG VIRTUALIZATION R&D

Red Hat EMEA <https://www.redhat.com/>

sbonazzo at redhat.com
<https://red.ht/sig>
<https://redhat.com/summit>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.centos.org/pipermail/centos-virt/attachments/20180511/73489433/attachment.html>

On Fri, May 11, 2018 at 2:19 AM, Sandro Bonazzola <sbonazzo at redhat.com>
wrote:
>
>
> 2018-05-10 21:57 GMT+02:00 Lance Albertson <lance at osuosl.org>:
>
>> I see with the introduction of CentOS 7.5 there's a new qemu-kvm-ma
>> package on ppc64le (which is actually newer than qemu-kvm-ev
currently).
>> Does anyone know what the difference is between these two packages? We
>> currently use qemu-kvm-ev and we've run into this bug [1] which got
me
>> wondering if we should be switching to that package on ppc64le.
>>
>
> qemu-kvm-ma is the non-x86_64 counterpart for qemu-kvm, so it is present
> in CentOS
> and have some features disabled. Upgrade path is qemu-kvm -> qemu-kvm-ma
> (as we
> provided some packages on non-x86_64 archs) -> qemu-kvm-ev (in case you
> enable CentOS Virt SIG QEMU repo).
> Opposite way is not supported and will probably break.
>
> Please wait a few days, libguestfs package will be updated fixing the bug
> you've hit around next week.
>
> Sadly, the new qemu-kvm-ev we prepared for CentOS 7.5 didn't get
released (
> https://bugs.centos.org/view.php?id=14764) but the new build is ready.
>
?Thanks for the clarification. So it looks like I should wait until the new
qemu-kvm-e?v is pushed out since that's what I'm currently using?
What's
really the primary difference between qemu-kvm-ev and qemu-kmv-ma on
ppc64le at this point? Also, I'm curious what the "ma" stands for
:)

Cheers-

-- 
Lance Albertson
Director
Oregon State University | Open Source Lab
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.centos.org/pipermail/centos-virt/attachments/20180511/07674a23/attachment-0002.html>

Hello, Sandro!

On 11.05.2018 12:19, Sandro Bonazzola wrote:
> Sadly, the new qemu-kvm-ev we prepared for CentOS 7.5 didn't get
released (
> https://bugs.centos.org/view.php?id=14764) but the new build is ready.
After installing CentOS 7.5 and installing package qemu-kvm-ev
I can't install KVM on x86_64 arch:

command "yum -y install perf qemu-kvm-ev qemu-kvm-tools-ev virt-top"
failed with error code 1 and such error message:

failure: repodata/repomd.xml from centos-qemu-ev: [Errno 256] No more 
mirrors to try.
http://mirror.centos.org/altarch/7/virt/x86_64/kvm-common/repodata/repomd.xml: 
[Errno 14] HTTP Error 404 - Not Found

=====================================================================
Is known time when this bug https://bugs.centos.org/view.php?id=14764
will be fixed and repository qemu-kvm-ev will work fine for CentOS 7.5 ?

I see your message "Packages landed on mirrors, we can close this
bug."
But this is not true, packages for x86_64 can't be found on the site:

http://mirror.centos.org/altarch/7/virt/

only aarch64 and ppc64le directories exists, and no x86_64 one.

Can you help me install qemu-kvm-ev on CentOS 7.5 on x86_64 arch?

P.S.

# cat /etc/redhat-release
CentOS Linux release 7.5.1804 (Core)

# rpm -qf /etc/yum.repos.d/CentOS-QEMU-EV.repo
centos-release-qemu-ev-1.0-3.el7.centos.noarch

# cat /etc/yum.repos.d/CentOS-QEMU-EV.repo
# CentOS-QEMU-EV.repo
#
# Please see http://wiki.centos.org/SpecialInterestGroup/Virtualization 
for more
# information

[centos-qemu-ev]
name=CentOS-$releasever - QEMU EV
baseurl=http://mirror.centos.org/$contentdir/$releasever/virt/$basearch/kvm-common/
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-Virtualization

-- 
Best regards,
  Gena