9:14 p.m.
--_000_DM5PR05MB3161434BD7A421FDC8D5FBCAD5400DM5PR05MB3161namp_
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I've been running oVirt 4.0.x for a while now and upgraded the engine and h=
osts to 4.1. Sometimes, on both 4.0 and 4.1, trying to run the "hosted-engi=
ne -console" command gives the following results:
The engine VM is running on this host
Connected to domain HostedEngine
Escape character is ^]
error: internal error: cannot find character device <null
Once this starts occurring, it never works again.
When this happens I note that the hvc0 device does not exist in /dev and th=
erefore there is no getty process running for that device. I notice that th=
e "Enable VirtIO serial console" box is not checked on the hosted engine VM=
but when I check it and click OK it's unchecked again when I open up the e=
dit window again.
How do I get console control back from my oVirt hosts?
Thank you,
Sandy Berger
Follow Us: Facebook<http://www.qg.com/social1> | Twitter<http://www.qg.com/=
social2> | LinkedIn<http://www.qg.com/social3> | YouTube<http://www.qg.com/=
social4
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link=3D"#0563C1" vlink=3D"#954F72" <div
class=3D"WordSection1" <p
class=3D"MsoNormal">I’ve been running oVirt 4.0.x for a while now
=
and upgraded the engine and hosts to 4.1. Sometimes, on both 4.0 and 4.1, t=
rying to run the “hosted-engine –console” command gives t=
he following results:<o:p></o:p></p <p
class=3D"MsoNormal"><o:p> </o:p></p <p class=3D"MsoNormal"><span
style=3D"font-family:"Courier New"">=
The engine VM is running on this host<o:p></o:p></span></p <p class=3D"MsoNormal"><span
style=3D"font-family:"Courier New"">=
Connected to domain HostedEngine<o:p></o:p></span></p <p class=3D"MsoNormal"><span
style=3D"font-family:"Courier New"">=
Escape character is ^]<o:p></o:p></span></p <p class=3D"MsoNormal"><span
style=3D"font-family:"Courier New"">=
error: internal error: cannot find character device
<null><o:p></o:p>=
</span></p <p
class=3D"MsoNormal"><o:p> </o:p></p <p class=3D"MsoNormal">Once this starts
occurring, it never works again.<o:=
p></o:p></p <p
class=3D"MsoNormal"><o:p> </o:p></p <p class=3D"MsoNormal">When this happens I note
that the hvc0 device does n=
ot exist in /dev and therefore there is no getty process running for that d=
evice. I notice that the “Enable VirtIO serial console” box is =
not checked on the hosted engine VM but when I
check it and click OK it’s unchecked again when I open up the edit w=
indow again.<o:p></o:p></p <p
class=3D"MsoNormal"><o:p> </o:p></p <p class=3D"MsoNormal">How do I get console
control back from my oVirt host=
s?<o:p></o:p></p <p
class=3D"MsoNormal"><o:p> </o:p></p <p class=3D"MsoNormal">Thank
you,<o:p></o:p></p <p
class=3D"MsoNormal"><o:p> </o:p></p <p class=3D"MsoNormal"><b><span
style=3D"font-size:10.0pt;font-family:"=
;Arial",sans-serif;color:#1E47A4">Sandy
Berger</span></b><span style=
=3D"font-size:10.5pt;font-family:"Arial",sans-serif;color:#444444=
"><o:p></o:p></span></p <p
class=3D"MsoNormal"><o:p> </o:p></p </div Follow
Us: <a href=3D"http://www.qg.com/social1">Facebook</a> | <a
href=3D"=
http://www.qg.com/social2" Twitter</a> | <a
href=3D"http://www.qg.com/social3">LinkedIn</a> | <a href=
=3D"http://www.qg.com/social4"
YouTube</a </body </html
--_000_DM5PR05MB3161434BD7A421FDC8D5FBCAD5400DM5PR05MB3161namp_--
12:20 a.m.
Hi,
we know about this and we already pushed patches that should resolve
this issue in 4.1.1 (one was merged today in fact).
We track the issue here:
https://bugzilla.redhat.com/show_bug.cgi?id=1364132 and the patch that
should resolve it is here: https://gerrit.ovirt.org/#/c/71472/
Applying the change manually or waiting for a new snapshot package in
http://resources.ovirt.org/pub/ovirt-4.1-snapshot/rpm/<distro>/noarch/
might help you in the meantime.
Best regards
--
Martin Sivak
SLA / oVirt
On Mon, Feb 6, 2017 at 8:14 PM, Berger, Sandy <SBERGER(a)qg.com> wrote:
I’ve been running oVirt 4.0.x for a while now and upgraded the engine
and
hosts to 4.1. Sometimes, on both 4.0 and 4.1, trying to run the
“hosted-engine –console” command gives the following results:
The engine VM is running on this host
Connected to domain HostedEngine
Escape character is ^]
error: internal error: cannot find character device <null>
Once this starts occurring, it never works again.
When this happens I note that the hvc0 device does not exist in /dev and
therefore there is no getty process running for that device. I notice that
the “Enable VirtIO serial console” box is not checked on the hosted engine
VM but when I check it and click OK it’s unchecked again when I open up the
edit window again.
How do I get console control back from my oVirt hosts?
Thank you,
Sandy Berger
Follow Us: Facebook | Twitter | LinkedIn | YouTube
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
9:17 p.m.
Thank you for your response. I installed the ovirt-hosted-engine-ha and
ovirt-hosted-engine-setup RPMs from the snapshot link you sent me onto the two hosts that
can host the engine. I re-ran engine-setup on the engine just in case and rebooted the two
hosts capable of hosting the engine and the engine itself. I am now able to run the
"hosted-engine --console" command successfully but since the 4.1 upgrade the
console button in the toolbar for the hosted engine is dimmed in the GUI. That is still
the case. Is that expected behavior with 4.1 or is there some other issue going on?
Also, when I use the command "ssh -t -p 2222 ovirt-vmconsole@engine," I get a
menu of VMs that I can choose from and get a serial console to them. That option has never
worked for the hosted engine. The engine shows up as a menu item but selecting it yields a
socket error. This works successfully on the other VMs.
Thanks!
--Sandy
-----Original Message-----
From: users-bounces(a)ovirt.org [mailto:users-bounces@ovirt.org] On Behalf Of Martin Sivak
Sent: Monday, February 06, 2017 4:21 PM
To: users(a)ovirt.org
Subject: Re: [ovirt-users] missing hvc0 device on hosted engine
Hi,
we know about this and we already pushed patches that should resolve
this issue in 4.1.1 (one was merged today in fact).
We track the issue here:
https://bugzilla.redhat.com/show_bug.cgi?id=1364132 and the patch that
should resolve it is here: https://gerrit.ovirt.org/#/c/71472/
Applying the change manually or waiting for a new snapshot package in
http://resources.ovirt.org/pub/ovirt-4.1-snapshot/rpm/<distro>/noarch/
might help you in the meantime.
Best regards
--
Martin Sivak
SLA / oVirt
On Mon, Feb 6, 2017 at 8:14 PM, Berger, Sandy <SBERGER(a)qg.com> wrote:
I’ve been running oVirt 4.0.x for a while now and upgraded the engine
and
hosts to 4.1. Sometimes, on both 4.0 and 4.1, trying to run the
“hosted-engine –console” command gives the following results:
The engine VM is running on this host
Connected to domain HostedEngine
Escape character is ^]
error: internal error: cannot find character device <null>
Once this starts occurring, it never works again.
When this happens I note that the hvc0 device does not exist in /dev and
therefore there is no getty process running for that device. I notice that
the “Enable VirtIO serial console” box is not checked on the hosted engine
VM but when I check it and click OK it’s unchecked again when I open up the
edit window again.
How do I get console control back from my oVirt hosts?
Thank you,
Sandy Berger
Follow Us: Facebook | Twitter | LinkedIn | YouTube
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
Follow Us: Facebook<http://www.qg.com/social1> |
Twitter<http://www.qg.com/social2> | LinkedIn<http://www.qg.com/social3> |
YouTube<http://www.qg.com/social4>
11:18 p.m.
since the 4.1 upgrade the console button in the toolbar for the
hosted engine is dimmed in the
GUI. That is still the case. Is that expected behavior with 4.1 or is there some other
issue
going on?
Also, when I use the command "ssh -t -p 2222 ovirt-vmconsole@engine," I get a
menu of VMs that
I can choose from and get a serial console to them. That option has never worked for the
hosted
engine. The engine shows up as a menu item but selecting it yields a socket error. This
works
successfully on the other VMs.
Honestly, I have no idea here. I do not think we ever supported those
for hosted engine and the ssh console I hear the first time about. I
opened a bug so we can properly investigated it:
https://bugzilla.redhat.com/show_bug.cgi?id=1420115
Best regards
Martin
On Tue, Feb 7, 2017 at 8:17 PM, Berger, Sandy <SBERGER(a)qg.com> wrote:
Thank you for your response. I installed the ovirt-hosted-engine-ha
and ovirt-hosted-engine-setup RPMs from the snapshot link you sent me onto the two hosts
that can host the engine. I re-ran engine-setup on the engine just in case and rebooted
the two hosts capable of hosting the engine and the engine itself. I am now able to run
the "hosted-engine --console" command successfully but since the 4.1 upgrade the
console button in the toolbar for the hosted engine is dimmed in the GUI. That is still
the case. Is that expected behavior with 4.1 or is there some other issue going on?
Also, when I use the command "ssh -t -p 2222 ovirt-vmconsole@engine," I get a
menu of VMs that I can choose from and get a serial console to them. That option has never
worked for the hosted engine. The engine shows up as a menu item but selecting it yields a
socket error. This works successfully on the other VMs.
Thanks!
--Sandy
-----Original Message-----
From: users-bounces(a)ovirt.org [mailto:users-bounces@ovirt.org] On Behalf Of Martin Sivak
Sent: Monday, February 06, 2017 4:21 PM
To: users(a)ovirt.org
Subject: Re: [ovirt-users] missing hvc0 device on hosted engine
Hi,
we know about this and we already pushed patches that should resolve
this issue in 4.1.1 (one was merged today in fact).
We track the issue here:
https://bugzilla.redhat.com/show_bug.cgi?id=1364132 and the patch that
should resolve it is here: https://gerrit.ovirt.org/#/c/71472/
Applying the change manually or waiting for a new snapshot package in
http://resources.ovirt.org/pub/ovirt-4.1-snapshot/rpm/<distro>/noarch/
might help you in the meantime.
Best regards
--
Martin Sivak
SLA / oVirt
On Mon, Feb 6, 2017 at 8:14 PM, Berger, Sandy <SBERGER(a)qg.com> wrote:
> I’ve been running oVirt 4.0.x for a while now and upgraded the engine and
> hosts to 4.1. Sometimes, on both 4.0 and 4.1, trying to run the
> “hosted-engine –console” command gives the following results:
>
>
>
> The engine VM is running on this host
>
> Connected to domain HostedEngine
>
> Escape character is ^]
>
> error: internal error: cannot find character device <null>
>
>
>
> Once this starts occurring, it never works again.
>
>
>
> When this happens I note that the hvc0 device does not exist in /dev and
> therefore there is no getty process running for that device. I notice that
> the “Enable VirtIO serial console” box is not checked on the hosted engine
> VM but when I check it and click OK it’s unchecked again when I open up the
> edit window again.
>
>
>
> How do I get console control back from my oVirt hosts?
>
>
>
> Thank you,
>
>
>
> Sandy Berger
>
>
>
> Follow Us: Facebook | Twitter | LinkedIn | YouTube
>
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
Follow Us: Facebook<http://www.qg.com/social1> |
Twitter<http://www.qg.com/social2> | LinkedIn<http://www.qg.com/social3> |
YouTube<http://www.qg.com/social4>
2:02 p.m.
This is a multi-part message in MIME format.
--------------97603545FA3E5AEFEB71090E
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On 02/06/2017 08:14 PM, Berger, Sandy wrote:
Ive been running oVirt 4.0.x for a while now and upgraded the engine
and hosts to 4.1. Sometimes, on both 4.0 and 4.1, trying to run the
hosted-engine console command gives the following results:
The engine VM is running on this host
Connected to domain HostedEngine
Escape character is ^]
error: internal error: cannot find character device <null>
Once this starts occurring, it never works again.
When this happens I note that the hvc0 device does not exist in /dev
and therefore there is no getty process running for that device. I
notice that the Enable VirtIO serial console box is not checked on
the hosted engine VM but when I check it and click OK its unchecked
again when I open up the edit window again.
How do I get console control back from my oVirt hosts?
Hi,
it is strongly recommended to use ttyS0 (legacy serial driver emulation)
and not hvc0 (newer virtio serial driver) because we had reports
of kernel panics (!!!!) using the new driver.
We are going to re-evaluate this setting for 4.2.0, and, perhaps, later
4.1.z, but for 4.1.0 this is still valid.
In terms of Vm configuration, the console device should have the
"consoleType" = "serial" setting.
This is the default Engine sends.
Not sure what HE is doing here, not if you fix it manually.
--
Francesco Romani
Red Hat Engineering Virtualization R & D
IRC: fromani
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<br>
<div class="moz-cite-prefix">On 02/06/2017 08:14 PM, Berger, Sandy
wrote:<br>
</div>
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<p class="MsoNormal">Ive been running oVirt 4.0.x for a while
now and upgraded the engine and hosts to 4.1. Sometimes, on
both 4.0 and 4.1, trying to run the hosted-engine console
command gives the following results:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span
style="font-family:"Courier
New"">The engine VM is running on this
host<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-family:"Courier
New"">Connected to domain
HostedEngine<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-family:"Courier
New"">Escape character is
^]<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-family:"Courier
New"">error: internal error: cannot find character
device <null><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Once this starts occurring, it never works
again.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">When this happens I note that the hvc0
device does not exist in /dev and therefore there is no getty
process running for that device. I notice that the Enable
VirtIO serial console box is not checked on the hosted engine
VM but when I check it and click OK its unchecked again when
I open up the edit window again.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">How do I get console control back from my
oVirt hosts?<o:p></o:p></p>
</div>
</blockquote>
<br>
Hi, <br>
<br>
it is strongly recommended to use ttyS0 (legacy serial driver
emulation) and not hvc0 (newer virtio serial driver) because we had
reports<br>
of kernel panics (!!!!) using the new driver.<br>
We are going to re-evaluate this setting for 4.2.0, and, perhaps,
later 4.1.z, but for 4.1.0 this is still valid.<br>
<br>
In terms of Vm configuration, the console device should have the
"consoleType" = "serial" setting.<br>
<br>
This is the default Engine sends.<br>
<br>
Not sure what HE is doing here, not if you fix it manually.<br>
<br>
<pre class="moz-signature" cols="72">--
Francesco Romani
Red Hat Engineering Virtualization R & D
IRC: fromani</pre>
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--------------97603545FA3E5AEFEB71090E--
2665
days inactive
2672
days old
4 comments
3 participants
participants (3)
-
Berger, Sandy -
Francesco Romani -
Martin Sivak