[ovirt-users] Re: Disk locked after backup

[Benny Zlotnik]

it's probably[1]

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1749944

On Thu, Sep 19, 2019 at 12:03 PM Fabio Cesar Hansen 
wrote:

> Hi.
>
> I am using the
> https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/examples/download_disk_snapshots.py
>  script to backup my vms.
>
> The problem is that always after the backup finishes, the snapshot is
> locked.
>
>
>
> Has anyone ever experienced this?
>
>
>
> Node version:
>
> OS Version: RHEL - 7 - 6.1810.2.el7.centos
>
> OS Description: oVirt Node 4.3.5.2
>
> Kernel Version: 3.10.0 - 957.27.2.el7.x86_64
>
> KVM Version: 2.12.0 - 18.el7_6.7.1
>
> LIBVIRT Version: libvirt-4.5.0-10.el7_6.12
>
> VDSM Version: vdsm-4.30.24-1.el7
>
>
>
> Engine version: 4.3.5.5-1.el7
>
>
>
>
>
> Thanks
>
>
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[ovirt-users] web admin: snapshots UI

[Yedidyah Bar David]

Hi all,

I'd like to ask/suggest something:

In the previous UI (4.2?), when you entered the VM snapshots page, you
saw per each snapshot some details that you do not see in the current
UI. Specifically, to see the creation date, you have to press General.
So I got used to writing longer descriptions, with the creation date
in them, but that also does not work well, because in the main view
only the start of the description is shown. At least for me
(combination of browser, OS, etc.), there is a lot of white unused
space between the end of the presented-part of the description, and
the "> General" after it. Can we somehow use this space to either add
the creation date, or more/all of the description, or even make this
customizable? And perhaps make this a sortable table (so that you can
sort by description, or if you added Data, you can sort by that, or
memory, or whatever)? I don't mind opening a bug/RFE for this, if more
people agree that it's useful, and unless there are some (unknown to
me) reasons against that (other than the time needed for implementing
this, which I expect is quite minimal for the simplest option of just
showing more of the description).

Thanks and best regards,
-- 
Didi
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[ovirt-users] Linked Clones?

[marzoccafabio]

Hi,

I am approaching and studying oVirt in order to propose the solution to a 
customer as a replacement for a commercial solution they have now.
They only need Desktop virtualization.
Sorry for the silly question, but I can't find a way to deploy a VM (template) 
to users as a "linked-clone", meaning that the users' image still refers to the 
original image but modification are written (and afterwards read) from a new 
location. This technique is called Copy-on-write.
Can this be achieved with oVirt?

Fabio
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[ovirt-users] CentOS 7.7 has been released: note it's not supported for oVirt 4.2

[Sandro Bonazzola]

CentOS 7.7 has been released this week.
Please note that CentOS 7.7 is not supported for oVirt 4.2 and older
releases.
If you want to upgrade to CentOS 7.7 please upgrade to oVirt 4.3 too.

If you don't plan to upgrade to oVirt 4.3 please be sure your yum repo
files points to http://mirror.centos.org/centos/7.6.1810/ instead of
http://mirror.centos.org/centos/7/.
The http://mirror.centos.org/centos/7/ URL is now pointing to
http://mirror.centos.org/centos/7.7.1908/ so yum upgrade will bring you 7.7
content which may break your 4.2 installation.

Thanks,

-- 

Sandro Bonazzola

MANAGER, SOFTWARE ENGINEERING, EMEA R RHV

Red Hat EMEA 

sbona...@redhat.com
*Red Hat respects your work life balance.
Therefore there is no need to answer this email out of your office hours.*
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[ovirt-users] Re: Linked Clones?

[Simone Tiraboschi]

On Thu, Sep 19, 2019 at 9:24 AM  wrote:

> Hi,
>
> I am approaching and studying oVirt in order to propose the solution to a
> customer as a replacement for a commercial solution they have now.
> They only need Desktop virtualization.
> Sorry for the silly question, but I can't find a way to deploy a VM
> (template) to users as a "linked-clone", meaning that the users' image
> still refers to the original image but modification are written (and
> afterwards read) from a new location. This technique is called
> Copy-on-write.
> Can this be achieved with oVirt?
>

Hi,
oVirt provides VM Pools:
https://www.ovirt.org/documentation/admin-guide/chap-Pools.html

but the VMs in pool are designed to be stateless and so, on that user case,
the user specific data should stored on an external (not on the VM disk)
storage area like an NFS or SMB/CIFS share mounted inside the VM at user
login time.

Probably you can achieve something closer to your initial idea relying on
oVirt-CinderLib integration over a capable SAN or a Ceph storage.
https://ovirt.org/develop/release-management/features/storage/cinderlib-integration.html
Please be aware that in 4.3 cinder-lib integration is still a
"tech-preview" grade feature and the design of the whole solution will
probably require a relevant integration/configuration effort on your side
to correctly achieve copy-on-write behaviour on storage side.



>
> Fabio
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[ovirt-users] Re: disable selinux ?

[Strahil]

I think I used to have a vdsm issue a long time ago.
Why would you disable SELINUX, it provides various options to adapt to 
non-SELINUX aware apps.

Best Regards,
Strahil NikolovOn Sep 19, 2019 10:54, Nardus Geldenhuys  
wrote:
>
> Hi
>
> Hope you are well. Quick question.
>
> Can I disable SELINUX on the ovirt nodes ? Will there be any issues. I know 
> that you cant migrate from SELINUX to DISABLED SELINUX nodes.
>
> Regards
>
> Nar___
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[ovirt-users] Disk locked after backup

[fchansen]

Hi.
I am using the 
https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/examples/download_disk_snapshots.py
 script to backup my vms.
The problem is that always after the backup finishes, the snapshot is locked.
 
Has anyone ever experienced this?
 
Node version:
OS Version: RHEL - 7 - 6.1810.2.el7.centos
OS Description: oVirt Node 4.3.5.2
Kernel Version: 3.10.0 - 957.27.2.el7.x86_64
KVM Version: 2.12.0 - 18.el7_6.7.1
LIBVIRT Version: libvirt-4.5.0-10.el7_6.12
VDSM Version: vdsm-4.30.24-1.el7
 
Engine version: 4.3.5.5-1.el7
 
 
Thanks
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[ovirt-users] Disk locked after backup

[Fabio Cesar Hansen]

Hi.
I am using the 
https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/examples/download_disk_snapshots.py
 script to backup my vms.
The problem is that always after the backup finishes, the snapshot is locked.

Has anyone ever experienced this?

Node version:
OS Version: RHEL - 7 - 6.1810.2.el7.centos
OS Description: oVirt Node 4.3.5.2
Kernel Version: 3.10.0 - 957.27.2.el7.x86_64
KVM Version: 2.12.0 - 18.el7_6.7.1
LIBVIRT Version: libvirt-4.5.0-10.el7_6.12
VDSM Version: vdsm-4.30.24-1.el7

Engine version: 4.3.5.5-1.el7


Thanks

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[ovirt-users] Re: Upgrade from 4.3.5 rc5 to 4.3.6 rc5 strange errors

[Guillaume Pavese]

"yum provides */libibverbs.so" will tell you that this file is provided
by  rdma-core-devel
So to fix this messages when you login, you can do : "yum install
rdma-core-devel"


Guillaume Pavese
Ingénieur Système et Réseau
Interactiv-Group


On Thu, Sep 19, 2019 at 1:56 AM Strahil  wrote:

> Hello Community,
>
> I was waiting for 7.7 to come up before I upgrade my lab.
>
> The engine got upgraded  without issues, same for OS - but after the
> system powered up I receive the  following:
>
> [root@ovirt1 ~]# ssh engine
> root@engine's password:
> Last login: Wed Sep 18 19:48:32 2019 from ovirt1.localdomainnet_mlx5:
> cannot load glue library: libibverbs.so.1: cannot open shared object
> file: No such file or directory
> net_mlx5: cannot initialize PMD due to missing run-time dependency on
> rdma-core libraries (libibverbs, libmlx5)
> PMD: net_mlx4: cannot load glue library: libibverbs.so.1: cannot open
> shared object file: No such file or directory
> PMD: net_mlx4: cannot initialize PMD due to missing run-time dependency on
> rdma-core libraries (libibverbs, libmlx4)
> net_mlx5: cannot load glue library: libibverbs.so.1: cannot open shared
> object file: No such file or directory
> net_mlx5: cannot initialize PMD due to missing run-time dependency on
> rdma-core libraries (libibverbs, libmlx5)
> PMD: net_mlx4: cannot load glue library: libibverbs.so.1: cannot open
> shared object file: No such file or directory
> PMD: net_mlx4: cannot initialize PMD due to missing run-time dependency on
> rdma-core libraries (libibverbs, libmlx4)
> [root@engine ~]#
>
> Anyone else experiecing this  ?
> I can't find libmlx4  or libmlx5 in the repos.
>
> P.S.: I have a gluster  snapshot, so I can rollback if needed.
> For now I will postpone  my hosts' upgrade.
>
> Best Regards,
> Strahil Nikolov
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>

-- 


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[ovirt-users] disable selinux ?

[Nardus Geldenhuys]

Hi

Hope you are well. Quick question.

Can I disable SELINUX on the ovirt nodes ? Will there be any issues. I know
that you cant migrate from SELINUX to DISABLED SELINUX nodes.

Regards

Nar
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[ovirt-users] Disk locked after backup

[Fabio Cesar Hansen]

Hi.
I am using the 
https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/examples/download_disk_snapshots.py
 script to backup my vms.
The problem is that always after the backup finishes, the snapshot is locked.

Has anyone ever experienced this?

Node version:
OS Version: RHEL - 7 - 6.1810.2.el7.centos
OS Description: oVirt Node 4.3.5.2
Kernel Version: 3.10.0 - 957.27.2.el7.x86_64
KVM Version: 2.12.0 - 18.el7_6.7.1
LIBVIRT Version: libvirt-4.5.0-10.el7_6.12
VDSM Version: vdsm-4.30.24-1.el7

Engine version: 4.3.5.5-1.el7


Thanks
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[ovirt-users] Re: Upgrade from 4.3.5 rc5 to 4.3.6 rc5 strange errors

[Strahil]

Yeah, I've noticed I was searching for the wrong library (patching from phone 
seems to be not such a smart idea :) ) . Installing libibverbs fixed the issue, 
and a bug is opened so devs can find where the deps were missing.

Did you notice this behaviour on your setup ?

Best Regards,
Strahil NikolovOn Sep 19, 2019 10:49, Guillaume Pavese 
 wrote:
>
> "yum provides */libibverbs.so" will tell you that this file is provided by  
> rdma-core-devel
> So to fix this messages when you login, you can do : "yum install 
> rdma-core-devel"
>
>
> Guillaume Pavese
> Ingénieur Système et Réseau
> Interactiv-Group
>
>
> On Thu, Sep 19, 2019 at 1:56 AM Strahil  wrote:
>>
>> Hello Community,
>>
>> I was waiting for 7.7 to come up before I upgrade my lab.
>>
>> The engine got upgraded  without issues, same for OS - but after the system 
>> powered up I receive the  following:
>>
>> [root@ovirt1 ~]# ssh engine
>> root@engine's password:
>> Last login: Wed Sep 18 19:48:32 2019 from ovirt1.localdomainnet_mlx5: cannot 
>> load glue library: libibverbs.so.1: cannot open shared object file: No such 
>> file or directory
>> net_mlx5: cannot initialize PMD due to missing run-time dependency on 
>> rdma-core libraries (libibverbs, libmlx5)
>> PMD: net_mlx4: cannot load glue library: libibverbs.so.1: cannot open shared 
>> object file: No such file or directory
>> PMD: net_mlx4: cannot initialize PMD due to missing run-time dependency on 
>> rdma-core libraries (libibverbs, libmlx4)
>> net_mlx5: cannot load glue library: libibverbs.so.1: cannot open shared 
>> object file: No such file or directory
>> net_mlx5: cannot initialize PMD due to missing run-time dependency on 
>> rdma-core libraries (libibverbs, libmlx5)
>> PMD: net_mlx4: cannot load glue library: libibverbs.so.1: cannot open shared 
>> object file: No such file or directory
>> PMD: net_mlx4: cannot initialize PMD due to missing run-time dependency on 
>> rdma-core libraries (libibverbs, libmlx4)
>> [root@engine ~]#
>>
>> Anyone else experiecing this  ?
>> I can't find libmlx4  or libmlx5 in the repos.
>>
>> P.S.: I have a gluster  snapshot, so I can rollback if needed.
>> For now I will postpone  my hosts' upgrade.
>>
>> Best Regards,
>> Strahil Nikolov
>>
>> ___
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>
>
> Ce message et toutes les pièces jointes (ci-après le “message”) sont établis 
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> interdite, sauf autorisation expresse. L’internet ne permettant pas d’assurer 
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> toute responsabilité au titre de ce message, dans l’hypothèse ou il aurait 
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[ovirt-users] Disk locked after backup

[fchansen]

Hi.
I am using the 
https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/examples/download_disk_snapshots.py
 script to backup my vms.
The problem is that always after the backup finishes, the snapshot is locked.
 
Has anyone ever experienced this?
 
Node version:
OS Version: RHEL - 7 - 6.1810.2.el7.centos
OS Description: oVirt Node 4.3.5.2
Kernel Version: 3.10.0 - 957.27.2.el7.x86_64
KVM Version: 2.12.0 - 18.el7_6.7.1
LIBVIRT Version: libvirt-4.5.0-10.el7_6.12
VDSM Version: vdsm-4.30.24-1.el7
 
Engine version: 4.3.5.5-1.el7
 
 
Thanks
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[ovirt-users] Re: Linked Clones?

[Strahil]

At least KVM can do that.
If I understood correctly, you want a base disk for multiple VMs and the delta 
should be stored in separate disk, right?

I am using VDO (with gluster) under my storage, so any duplicate data is 
deduplicated  (and if yiu enable compression - compressed) by VDO.

Have you thought about VDO - it works with almost any block storage ?Of course 
both technology will reduce the I/O performance compared to raw storage.

Also, let's see if actually oVirt has such option...

Best Regards,
Strahil Nikolov

On Sep 19, 2019 10:23, marzoccafa...@gmail.com wrote:
>
> Hi, 
>
> I am approaching and studying oVirt in order to propose the solution to a 
> customer as a replacement for a commercial solution they have now. 
> They only need Desktop virtualization. 
> Sorry for the silly question, but I can't find a way to deploy a VM 
> (template) to users as a "linked-clone", meaning that the users' image still 
> refers to the original image but modification are written (and afterwards 
> read) from a new location. This technique is called Copy-on-write. 
> Can this be achieved with oVirt? 
>
> Fabio
> ___
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[ovirt-users] Best Practices to update a Windows VM

[marzoccafabio]

Once created a "main" VM we keep it alone to embed Windows updates. Then we 
clone this into a "service" VM which we convert into a Template to deploy to 
users.
Now, what is the Best Practice to update WIndows OS for the all the users?
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[ovirt-users] Re: disable selinux ?

[Yedidyah Bar David]

On Thu, Sep 19, 2019 at 11:11 AM Nardus Geldenhuys  wrote:
>
> Hi
>
> Hope you are well. Quick question.
>
> Can I disable SELINUX on the ovirt nodes ? Will there be any issues. I know 
> that you cant migrate from SELINUX to DISABLED SELINUX nodes.

I know that we have a problem with that during hosted-engine initial
deploy. After that, it should probably work, but is not tested. If you
have a problem with that, perhaps you can give more details. If you
simply want to disable because you don't like it, or some local policy
or whatever, feel free to disable, and open bugs if you run into them.
Even if it works, I'd still not recommend that.

Best regards,
-- 
Didi
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[ovirt-users] Re: Upgrade from 4.3.5 rc5 to 4.3.6 rc5 strange errors

[Guillaume Pavese]

Yes, I had those same messages on 4.3.5 upgraded from 4.3.4

Guillaume Pavese
Ingénieur Système et Réseau
Interactiv-Group


On Thu, Sep 19, 2019 at 5:22 PM Strahil  wrote:

> Yeah, I've noticed I was searching for the wrong library (patching from
> phone seems to be not such a smart idea :) ) . Installing libibverbs fixed
> the issue, and a bug is opened so devs can find where the deps were missing.
>
> Did you notice this behaviour on your setup ?
>
> Best Regards,
> Strahil Nikolov
> On Sep 19, 2019 10:49, Guillaume Pavese <
> guillaume.pav...@interactiv-group.com> wrote:
>
> "yum provides */libibverbs.so" will tell you that this file is provided
> by  rdma-core-devel
> So to fix this messages when you login, you can do : "yum install
> rdma-core-devel"
>
>
> Guillaume Pavese
> Ingénieur Système et Réseau
> Interactiv-Group
>
>
> On Thu, Sep 19, 2019 at 1:56 AM Strahil  wrote:
>
> Hello Community,
>
> I was waiting for 7.7 to come up before I upgrade my lab.
>
> The engine got upgraded  without issues, same for OS - but after the
> system powered up I receive the  following:
>
> [root@ovirt1 ~]# ssh engine
> root@engine's password:
> Last login: Wed Sep 18 19:48:32 2019 from ovirt1.localdomainnet_mlx5:
> cannot load glue library: libibverbs.so.1: cannot open shared object
> file: No such file or directory
> net_mlx5: cannot initialize PMD due to missing run-time dependency on
> rdma-core libraries (libibverbs, libmlx5)
> PMD: net_mlx4: cannot load glue library: libibverbs.so.1: cannot open
> shared object file: No such file or directory
> PMD: net_mlx4: cannot initialize PMD due to missing run-time dependency on
> rdma-core libraries (libibverbs, libmlx4)
> net_mlx5: cannot load glue library: libibverbs.so.1: cannot open shared
> object file: No such file or directory
> net_mlx5: cannot initialize PMD due to missing run-time dependency on
> rdma-core libraries (libibverbs, libmlx5)
> PMD: net_mlx4: cannot load glue library: libibverbs.so.1: cannot open
> shared object file: No such file or directory
> PMD: net_mlx4: cannot initialize PMD due to missing run-time dependency on
> rdma-core libraries (libibverbs, libmlx4)
> [root@engine ~]#
>
> Anyone else experiecing this  ?
> I can't find libmlx4  or libmlx5 in the repos.
>
> P.S.: I have a gluster  snapshot, so I can rollback if needed.
> For now I will postpone  my hosts' upgrade.
>
> Best Regards,
> Strahil Nikolov
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> /
>
>
> Ce message et toutes les pièces jointes (ci-après le “message”) sont
> établis à l’intention exclusive de ses destinataires et sont confidentiels.
> Si vous recevez ce message par erreur, merci de le détruire et d’en avertir
> immédiatement l’expéditeur. Toute utilisation de ce message non conforme a
> sa destination, toute diffusion ou toute publication, totale ou partielle,
> est interdite, sauf autorisation expresse. L’internet ne permettant pas
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> ou il aurait été modifié. IT, ES, UK.
> 
>
>

-- 


Ce message et toutes les pièces jointes (ci-après le “message”) sont 
établis à l’intention exclusive de ses destinataires et sont confidentiels. 
Si vous recevez ce message par erreur, merci de le détruire et d’en avertir 
immédiatement l’expéditeur. Toute utilisation de ce message non conforme a 
sa destination, toute diffusion ou toute publication, totale ou partielle, 
est interdite, sauf autorisation expresse. L’internet ne permettant pas 
d’assurer l’intégrité de ce message . Interactiv-group (et ses filiales) 
décline(nt) toute responsabilité au titre de ce message, dans l’hypothèse 
ou il aurait été modifié. IT, ES, UK.  

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[ovirt-users] Re: web admin: snapshots UI

[Laura Wright]

I'd be happy to take a pass at doing another design for it. I would tend to
agree that the general info of the snapshot should be surfaced at a higher
level.

On Thu, Sep 19, 2019 at 2:46 AM Yedidyah Bar David  wrote:

> Hi all,
>
> I'd like to ask/suggest something:
>
> In the previous UI (4.2?), when you entered the VM snapshots page, you
> saw per each snapshot some details that you do not see in the current
> UI. Specifically, to see the creation date, you have to press General.
> So I got used to writing longer descriptions, with the creation date
> in them, but that also does not work well, because in the main view
> only the start of the description is shown. At least for me
> (combination of browser, OS, etc.), there is a lot of white unused
> space between the end of the presented-part of the description, and
> the "> General" after it. Can we somehow use this space to either add
> the creation date, or more/all of the description, or even make this
> customizable? And perhaps make this a sortable table (so that you can
> sort by description, or if you added Data, you can sort by that, or
> memory, or whatever)? I don't mind opening a bug/RFE for this, if more
> people agree that it's useful, and unless there are some (unknown to
> me) reasons against that (other than the time needed for implementing
> this, which I expect is quite minimal for the simplest option of just
> showing more of the description).
>
> Thanks and best regards,
> --
> Didi
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-- 

Laura Wright

She/Her/Hers

UXD Team

Red Hat Massachusetts 

314 Littleton Rd

lwri...@redhat.com

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[ovirt-users] Re: CentOS 7.7 has been released: note it's not supported for oVirt 4.2

[Logan Kuhn]

Are there any specific incompatibilities between oVirt 4.2 and CentOS 7.7 or is 
it simply untested and won't be tested? 

Regards, 
Logan 

- On Sep 19, 2019, at 2:45 AM, Sandro Bonazzola  
wrote: 

| CentOS 7.7 has been released this week.
| Please note that CentOS 7.7 is not supported for oVirt 4.2 and older releases.
| If you want to upgrade to CentOS 7.7 please upgrade to oVirt 4.3 too.

| If you don't plan to upgrade to oVirt 4.3 please be sure your yum repo files
| points to [ http://mirror.centos.org/centos/7.6.1810/ |
| http://mirror.centos.org/centos/7.6.1810/ ] instead of [
| http://mirror.centos.org/centos/7/ | http://mirror.centos.org/centos/7/ ] .
| The [ http://mirror.centos.org/centos/7/ | http://mirror.centos.org/centos/7/ 
]
| URL is now pointing to [ http://mirror.centos.org/centos/7.7.1908/ |
| http://mirror.centos.org/centos/7.7.1908/ ] so yum upgrade will bring you 7.7
| content which may break your 4.2 installation.

| Thanks,

| --

| Sandro Bonazzola

| MANAGER, SOFTWARE ENGINEERING, EMEA R RHV

| [ https://www.redhat.com/ | Red Hat EMEA ]

| [ mailto:sbona...@redhat.com | sbona...@redhat.com ]
| [ https://www.redhat.com/ ] Red Hat respects your work life balance. Therefore
| there is no need to answer this email out of your office hours.

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[ovirt-users] Re: CentOS 7.7 has been released: note it's not supported for oVirt 4.2

[Sandro Bonazzola]

Il giorno gio 19 set 2019 alle ore 16:06 Logan Kuhn  ha
scritto:

> Are there any specific incompatibilities between oVirt 4.2 and CentOS 7.7
> or is it simply untested and won't be tested?
>

There's a known collision between sos from 7.7 and vdsm shipped in 4.2
which will raise dependency error.
Other than that, it has not been tested and won't be tested being 4.2 past
end of life.



>
> Regards,
> Logan
>
> - On Sep 19, 2019, at 2:45 AM, Sandro Bonazzola 
> wrote:
>
> CentOS 7.7 has been released this week.
> Please note that CentOS 7.7 is not supported for oVirt 4.2 and older
> releases.
> If you want to upgrade to CentOS 7.7 please upgrade to oVirt 4.3 too.
>
> If you don't plan to upgrade to oVirt 4.3 please be sure your yum repo
> files points to http://mirror.centos.org/centos/7.6.1810/ instead of
> http://mirror.centos.org/centos/7/.
> The http://mirror.centos.org/centos/7/ URL is now pointing to
> http://mirror.centos.org/centos/7.7.1908/ so yum upgrade will bring you
> 7.7 content which may break your 4.2 installation.
>
> Thanks,
>
> --
>
> Sandro Bonazzola
>
> MANAGER, SOFTWARE ENGINEERING, EMEA R RHV
>
> Red Hat EMEA 
>
> sbona...@redhat.com
> *Red Hat respects your work life balance.
> Therefore there is no need to answer this email out of your office hours.*
>
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>

-- 

Sandro Bonazzola

MANAGER, SOFTWARE ENGINEERING, EMEA R RHV

Red Hat EMEA 

sbona...@redhat.com
*Red Hat respects your work life balance.
Therefore there is no need to answer this email out of your office hours.
*
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