Complete CentOS 7 environment

We are upgrading hardware and I'm upgrading/rebuilding our Ovirt infrastructure. Are CentOS 7 host nodes supported? And can the engine be installed on CentOS 7? (3.5 repo isn't working for me) Thanks, Usman

--Sig_/8lrgEJ3gHuZTm577gZG6Wrc Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Thu, 6 Nov 2014 17:47:52 +0000 Usman wrote: AU> We are upgrading hardware and I'm upgrading/rebuilding our Ovirt AU> infrastructure. Are CentOS 7 host nodes supported? And can the engine AU> be installed on CentOS 7? (3.5 repo isn't working for me) CentOS 7 is supported for host nodes, but not the engine. If you have a mixed CentOS 6/7 environment, note that migration works from 6->7 hosts, but not from 7->6. Robert --=20 Senior Software Engineer @ Parsons --Sig_/8lrgEJ3gHuZTm577gZG6Wrc Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEARECAAYFAlRbyBoACgkQ7/fVLLY1mngSzQCeKWHdlnpd7XIe4McxVcrLSjyO hdEAnjfL4KdQaD+yJM2lHu/Za0cofFi9 =W3xz -----END PGP SIGNATURE----- --Sig_/8lrgEJ3gHuZTm577gZG6Wrc--

Thanks for the info Robert. I'm setting up nodes with CentOS 7 and Engine is the only thing on 6.6 In your opinion, do you think it will be easy enough to rebuild the engine on a CentOS 7 machine when support is available? Thanks, Usman -----Original Message----- From: Robert Story [mailto:rstory@tislabs.com] Sent: Thursday, November 06, 2014 2:12 PM To: Aslam, Usman Cc: users@ovirt.org Subject: Re: [ovirt-users] Complete CentOS 7 environment On Thu, 6 Nov 2014 17:47:52 +0000 Usman wrote: AU> We are upgrading hardware and I'm upgrading/rebuilding our Ovirt AU> infrastructure. Are CentOS 7 host nodes supported? And can the AU> engine be installed on CentOS 7? (3.5 repo isn't working for me) CentOS 7 is supported for host nodes, but not the engine. If you have a mixed CentOS 6/7 environment, note that migration works from 6->7 hosts, but not from 7->6. Robert -- Senior Software Engineer @ Parsons

Il 06/11/2014 20:35, Aslam, Usman ha scritto:
Thanks for the info Robert. I'm setting up nodes with CentOS 7 and Engine is the only thing on 6.6 In your opinion, do you think it will be easy enough to rebuild the engine on a CentOS 7 machine when support is available?
simple backup on 6 and restore on a clean 7 should work.
Thanks, Usman
-----Original Message----- From: Robert Story [mailto:rstory@tislabs.com] Sent: Thursday, November 06, 2014 2:12 PM To: Aslam, Usman Cc: users@ovirt.org Subject: Re: [ovirt-users] Complete CentOS 7 environment
On Thu, 6 Nov 2014 17:47:52 +0000 Usman wrote: AU> We are upgrading hardware and I'm upgrading/rebuilding our Ovirt AU> infrastructure. Are CentOS 7 host nodes supported? And can the AU> engine be installed on CentOS 7? (3.5 repo isn't working for me)
CentOS 7 is supported for host nodes, but not the engine. If you have a mixed CentOS 6/7 environment, note that migration works from 6->7 hosts, but not from 7->6.
Robert
-- Senior Software Engineer @ Parsons _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
-- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

----- Original Message -----
From: "Sandro Bonazzola" <sbonazzo@redhat.com> To: "Usman Aslam" <Usman.Aslam@tufts.edu>, "Robert Story" <rstory@tislabs.com> Cc: users@ovirt.org, "Yedidyah Bar David" <didi@redhat.com> Sent: Monday, December 15, 2014 9:53:28 AM Subject: Re: [ovirt-users] Complete CentOS 7 environment
Il 06/11/2014 20:35, Aslam, Usman ha scritto:
Thanks for the info Robert. I'm setting up nodes with CentOS 7 and Engine is the only thing on 6.6 In your opinion, do you think it will be easy enough to rebuild the engine on a CentOS 7 machine when support is available?
simple backup on 6 and restore on a clean 7 should work.
Indeed, although: 1. I didn't yet try that myself (yet?) 2. The opposite direction (7->6) might fail, due to postgresql in 7 dumping data that the version in 6 fails to parse/accept.
Thanks, Usman
-----Original Message----- From: Robert Story [mailto:rstory@tislabs.com] Sent: Thursday, November 06, 2014 2:12 PM To: Aslam, Usman Cc: users@ovirt.org Subject: Re: [ovirt-users] Complete CentOS 7 environment
On Thu, 6 Nov 2014 17:47:52 +0000 Usman wrote: AU> We are upgrading hardware and I'm upgrading/rebuilding our Ovirt AU> infrastructure. Are CentOS 7 host nodes supported? And can the AU> engine be installed on CentOS 7? (3.5 repo isn't working for me)
It's likely that 3.5.1 will work, but contrary to nodes, there is not a big difference between them for the engine.
CentOS 7 is supported for host nodes, but not the engine. If you have a mixed CentOS 6/7 environment, note that migration works from 6->7 hosts, but not from 7->6.
Robert
-- Senior Software Engineer @ Parsons _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
-- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com
-- Didi

Thanks for the info guys. CentOS 6 engine seems stable enough and its working great with 6 hypervisors. CentOS 7 hypervisors hosts are however a different story. Is nic teaming not supported? Also kdump service commands keep failing in ovirt logs after a clean install? This frustrating enough to make me use 6. Lastly, Id like to mention that the Ovirt Node 3.5 install iso seems broken on HP DL360. It goes through the install process fine until the very end where it complains about not being able to write the boot loader. Nodes setup using a minimal install of 6.6 work like a charm and overall I'm loving 3.5 Thanks guys! Usman -----Original Message----- From: Yedidyah Bar David [mailto:didi@redhat.com] Sent: Monday, December 15, 2014 3:06 AM To: Sandro Bonazzola Cc: Aslam, Usman; Robert Story; users@ovirt.org Subject: Re: [ovirt-users] Complete CentOS 7 environment ----- Original Message -----
From: "Sandro Bonazzola" <sbonazzo@redhat.com> To: "Usman Aslam" <Usman.Aslam@tufts.edu>, "Robert Story" <rstory@tislabs.com> Cc: users@ovirt.org, "Yedidyah Bar David" <didi@redhat.com> Sent: Monday, December 15, 2014 9:53:28 AM Subject: Re: [ovirt-users] Complete CentOS 7 environment
Il 06/11/2014 20:35, Aslam, Usman ha scritto:
Thanks for the info Robert. I'm setting up nodes with CentOS 7 and Engine is the only thing on 6.6 In your opinion, do you think it will be easy enough to rebuild the engine on a CentOS 7 machine when support is available?
simple backup on 6 and restore on a clean 7 should work.
Indeed, although: 1. I didn't yet try that myself (yet?) 2. The opposite direction (7->6) might fail, due to postgresql in 7 dumping data that the version in 6 fails to parse/accept.
Thanks, Usman
-----Original Message----- From: Robert Story [mailto:rstory@tislabs.com] Sent: Thursday, November 06, 2014 2:12 PM To: Aslam, Usman Cc: users@ovirt.org Subject: Re: [ovirt-users] Complete CentOS 7 environment
On Thu, 6 Nov 2014 17:47:52 +0000 Usman wrote: AU> We are upgrading hardware and I'm upgrading/rebuilding our Ovirt AU> infrastructure. Are CentOS 7 host nodes supported? And can the AU> engine be installed on CentOS 7? (3.5 repo isn't working for me)
It's likely that 3.5.1 will work, but contrary to nodes, there is not a big difference between them for the engine.
CentOS 7 is supported for host nodes, but not the engine. If you have a mixed CentOS 6/7 environment, note that migration works from 6->7 hosts, but not from 7->6.
Robert
-- Senior Software Engineer @ Parsons _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
-- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com
-- Didi

Il 15/12/2014 18:28, Aslam, Usman ha scritto:
Thanks for the info guys. CentOS 6 engine seems stable enough and its working great with 6 hypervisors.
CentOS 7 hypervisors hosts are however a different story. Is nic teaming not supported?
Dan?
Also kdump service commands keep failing in ovirt logs after a clean install? This frustrating enough to make me use 6.
Martin?
Lastly, Id like to mention that the Ovirt Node 3.5 install iso seems broken on HP DL360. It goes through the install process fine until the very end where it complains about not being able to write the boot loader.
Fabian?
Nodes setup using a minimal install of 6.6 work like a charm and overall I'm loving 3.5 Thanks guys!
I suggest to open one bugzilla item for each of your issues above if not already opened.
Usman
-----Original Message----- From: Yedidyah Bar David [mailto:didi@redhat.com] Sent: Monday, December 15, 2014 3:06 AM To: Sandro Bonazzola Cc: Aslam, Usman; Robert Story; users@ovirt.org Subject: Re: [ovirt-users] Complete CentOS 7 environment
----- Original Message -----
From: "Sandro Bonazzola" <sbonazzo@redhat.com> To: "Usman Aslam" <Usman.Aslam@tufts.edu>, "Robert Story" <rstory@tislabs.com> Cc: users@ovirt.org, "Yedidyah Bar David" <didi@redhat.com> Sent: Monday, December 15, 2014 9:53:28 AM Subject: Re: [ovirt-users] Complete CentOS 7 environment
Il 06/11/2014 20:35, Aslam, Usman ha scritto:
Thanks for the info Robert. I'm setting up nodes with CentOS 7 and Engine is the only thing on 6.6 In your opinion, do you think it will be easy enough to rebuild the engine on a CentOS 7 machine when support is available?
simple backup on 6 and restore on a clean 7 should work.
Indeed, although: 1. I didn't yet try that myself (yet?) 2. The opposite direction (7->6) might fail, due to postgresql in 7 dumping data that the version in 6 fails to parse/accept.
Thanks, Usman
-----Original Message----- From: Robert Story [mailto:rstory@tislabs.com] Sent: Thursday, November 06, 2014 2:12 PM To: Aslam, Usman Cc: users@ovirt.org Subject: Re: [ovirt-users] Complete CentOS 7 environment
On Thu, 6 Nov 2014 17:47:52 +0000 Usman wrote: AU> We are upgrading hardware and I'm upgrading/rebuilding our Ovirt AU> infrastructure. Are CentOS 7 host nodes supported? And can the AU> engine be installed on CentOS 7? (3.5 repo isn't working for me)
It's likely that 3.5.1 will work, but contrary to nodes, there is not a big difference between them for the engine.
CentOS 7 is supported for host nodes, but not the engine. If you have a mixed CentOS 6/7 environment, note that migration works from 6->7 hosts, but not from 7->6.
Robert
-- Senior Software Engineer @ Parsons _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
-- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com
-- Didi
-- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

----- Original Message -----
From: "Sandro Bonazzola" <sbonazzo@redhat.com> To: "Usman Aslam" <Usman.Aslam@tufts.edu>, "Yedidyah Bar David" <didi@redhat.com>, "Dan Kenigsberg" <danken@redhat.com>, "Martin Perina" <mperina@redhat.com>, "Fabian Deutsch" <fdeutsch@redhat.com> Cc: "Robert Story" <rstory@tislabs.com>, users@ovirt.org Sent: Tuesday, December 16, 2014 8:59:43 AM Subject: Re: [ovirt-users] Complete CentOS 7 environment
Il 15/12/2014 18:28, Aslam, Usman ha scritto:
Thanks for the info guys. CentOS 6 engine seems stable enough and its working great with 6 hypervisors.
CentOS 7 hypervisors hosts are however a different story. Is nic teaming not supported?
Dan?
Also kdump service commands keep failing in ovirt logs after a clean install? This frustrating enough to make me use 6.
Martin?
Lastly, Id like to mention that the Ovirt Node 3.5 install iso seems broken on HP DL360. It goes through the install process fine until the very end where it complains about not being able to write the boot loader.
Fabian?
Nodes setup using a minimal install of 6.6 work like a charm and overall I'm loving 3.5 Thanks guys!
I suggest to open one bugzilla item for each of your issues above if not already opened.
Also please include there details - logs if possible, exact hardware (server model, disk/storage subsystem components etc). Also installation logs of centos 6 on the same boxes will help I guess. Thanks! -- Didi

----- Original Message -----
From: "Sandro Bonazzola" <sbonazzo@redhat.com> To: "Usman Aslam" <Usman.Aslam@tufts.edu>, "Yedidyah Bar David" <didi@redhat.com>, "Dan Kenigsberg" <danken@redhat.com>, "Martin Perina" <mperina@redhat.com>, "Fabian Deutsch" <fdeutsch@redhat.com> Cc: "Robert Story" <rstory@tislabs.com>, users@ovirt.org Sent: Tuesday, December 16, 2014 7:59:43 AM Subject: Re: [ovirt-users] Complete CentOS 7 environment
Il 15/12/2014 18:28, Aslam, Usman ha scritto:
Thanks for the info guys. CentOS 6 engine seems stable enough and its working great with 6 hypervisors.
CentOS 7 hypervisors hosts are however a different story. Is nic teaming not supported?
Dan?
Also kdump service commands keep failing in ovirt logs after a clean install? This frustrating enough to make me use 6.
Not sure I understand this. If you try to deploy a CentOS 7 host with kdump intergration enabled, does host deploy fail (while with exact same configuration it works on CentOS 6.6)? If so, could you please post /var/log/ovirt-engine/host-deploy/XXX.log (XXX contains name of the host and timestamp)? Thanks Martin
Martin?
Lastly, Id like to mention that the Ovirt Node 3.5 install iso seems broken on HP DL360. It goes through the install process fine until the very end where it complains about not being able to write the boot loader.
Fabian?
Nodes setup using a minimal install of 6.6 work like a charm and overall I'm loving 3.5 Thanks guys!
I suggest to open one bugzilla item for each of your issues above if not already opened.
Usman
-----Original Message----- From: Yedidyah Bar David [mailto:didi@redhat.com] Sent: Monday, December 15, 2014 3:06 AM To: Sandro Bonazzola Cc: Aslam, Usman; Robert Story; users@ovirt.org Subject: Re: [ovirt-users] Complete CentOS 7 environment
----- Original Message -----
From: "Sandro Bonazzola" <sbonazzo@redhat.com> To: "Usman Aslam" <Usman.Aslam@tufts.edu>, "Robert Story" <rstory@tislabs.com> Cc: users@ovirt.org, "Yedidyah Bar David" <didi@redhat.com> Sent: Monday, December 15, 2014 9:53:28 AM Subject: Re: [ovirt-users] Complete CentOS 7 environment
Il 06/11/2014 20:35, Aslam, Usman ha scritto:
Thanks for the info Robert. I'm setting up nodes with CentOS 7 and Engine is the only thing on 6.6 In your opinion, do you think it will be easy enough to rebuild the engine on a CentOS 7 machine when support is available?
simple backup on 6 and restore on a clean 7 should work.
Indeed, although: 1. I didn't yet try that myself (yet?) 2. The opposite direction (7->6) might fail, due to postgresql in 7 dumping data that the version in 6 fails to parse/accept.
Thanks, Usman
-----Original Message----- From: Robert Story [mailto:rstory@tislabs.com] Sent: Thursday, November 06, 2014 2:12 PM To: Aslam, Usman Cc: users@ovirt.org Subject: Re: [ovirt-users] Complete CentOS 7 environment
On Thu, 6 Nov 2014 17:47:52 +0000 Usman wrote: AU> We are upgrading hardware and I'm upgrading/rebuilding our Ovirt AU> infrastructure. Are CentOS 7 host nodes supported? And can the AU> engine be installed on CentOS 7? (3.5 repo isn't working for me)
It's likely that 3.5.1 will work, but contrary to nodes, there is not a big difference between them for the engine.
CentOS 7 is supported for host nodes, but not the engine. If you have a mixed CentOS 6/7 environment, note that migration works from 6->7 hosts, but not from 7->6.
Robert
-- Senior Software Engineer @ Parsons _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
-- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com
-- Didi
-- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

Lastly, Id like to mention that the Ovirt Node 3.5 install iso seems broken on HP DL360. It goes through the install process fine until the very end where it complains about not being able to write the boot loader.
Fabian?
This is probably https://bugzilla.redhat.com/show_bug.cgi?id=1167240 Which we still try to tackle. - fabian

On 16/12/14 08:59, Sandro Bonazzola wrote:
Il 15/12/2014 18:28, Aslam, Usman ha scritto:
Thanks for the info guys. CentOS 6 engine seems stable enough and its working great with 6 hypervisors.
CentOS 7 hypervisors hosts are however a different story. Is nic teaming not supported?
Dan?
Usman, could you please describe what kind of teaming did you try to perform? Did you bond interfaces using the host setup networks dialog in the GUI? What did the failure look like? As others have requested, relevant engine and vdsm logs would be appreciated on top of the answers :)
Also kdump service commands keep failing in ovirt logs after a clean install? This frustrating enough to make me use 6.
Martin?
Lastly, Id like to mention that the Ovirt Node 3.5 install iso seems broken on HP DL360. It goes through the install process fine until the very end where it complains about not being able to write the boot loader.
Fabian?
Nodes setup using a minimal install of 6.6 work like a charm and overall I'm loving 3.5 Thanks guys!
I suggest to open one bugzilla item for each of your issues above if not already opened.
Usman
-----Original Message----- From: Yedidyah Bar David [mailto:didi@redhat.com] Sent: Monday, December 15, 2014 3:06 AM To: Sandro Bonazzola Cc: Aslam, Usman; Robert Story; users@ovirt.org Subject: Re: [ovirt-users] Complete CentOS 7 environment
----- Original Message -----
From: "Sandro Bonazzola" <sbonazzo@redhat.com> To: "Usman Aslam" <Usman.Aslam@tufts.edu>, "Robert Story" <rstory@tislabs.com> Cc: users@ovirt.org, "Yedidyah Bar David" <didi@redhat.com> Sent: Monday, December 15, 2014 9:53:28 AM Subject: Re: [ovirt-users] Complete CentOS 7 environment
Il 06/11/2014 20:35, Aslam, Usman ha scritto:
Thanks for the info Robert. I'm setting up nodes with CentOS 7 and Engine is the only thing on 6.6 In your opinion, do you think it will be easy enough to rebuild the engine on a CentOS 7 machine when support is available?
simple backup on 6 and restore on a clean 7 should work.
Indeed, although: 1. I didn't yet try that myself (yet?) 2. The opposite direction (7->6) might fail, due to postgresql in 7 dumping data that the version in 6 fails to parse/accept.
Thanks, Usman
-----Original Message----- From: Robert Story [mailto:rstory@tislabs.com] Sent: Thursday, November 06, 2014 2:12 PM To: Aslam, Usman Cc: users@ovirt.org Subject: Re: [ovirt-users] Complete CentOS 7 environment
On Thu, 6 Nov 2014 17:47:52 +0000 Usman wrote: AU> We are upgrading hardware and I'm upgrading/rebuilding our Ovirt AU> infrastructure. Are CentOS 7 host nodes supported? And can the AU> engine be installed on CentOS 7? (3.5 repo isn't working for me)
It's likely that 3.5.1 will work, but contrary to nodes, there is not a big difference between them for the engine.
CentOS 7 is supported for host nodes, but not the engine. If you have a mixed CentOS 6/7 environment, note that migration works from 6->7 hosts, but not from 7->6.
Robert
-- Senior Software Engineer @ Parsons _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
-- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com
-- Didi

On Tue, Dec 16, 2014 at 07:59:43AM +0100, Sandro Bonazzola wrote:
Il 15/12/2014 18:28, Aslam, Usman ha scritto:
Thanks for the info guys. CentOS 6 engine seems stable enough and its working great with 6 hypervisors.
CentOS 7 hypervisors hosts are however a different story. Is nic teaming not supported?
Dan?
No, we currently have no support of teaming, I'm afraid. We hope to be able to implement it only on vdsm level, without a need for any API change. However, fancier team options may need an extended API relative to what we have for bonding devices. I must admit that supporting team has lurked out there for a while, but no explicit request for it was expressed. I you would like to see it in oVirt, please file an RFE and fight for its inclusion in an upcoming version. An for improved chances, post a vdsm networking configurator that implements "bond" as a teaming device. Dan.

Il 06/11/2014 18:47, Aslam, Usman ha scritto:
We are upgrading hardware and I'm upgrading/rebuilding our Ovirt infrastructure. Are CentOS 7 host nodes supported? And can the engine be installed on CentOS 7? (3.5 repo isn't working for me)
Support for installing the engine on CentOS 7 is under testing for 3.5.1 in 3.5 nightly snapshots [1] [1] http://www.ovirt.org/Install_nightly_snapshot
Thanks, Usman _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
-- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com
participants (8)
-
Aslam, Usman
-
Dan Kenigsberg
-
Fabian Deutsch
-
Lior Vernia
-
Martin Perina
-
Robert Story
-
Sandro Bonazzola
-
Yedidyah Bar David