[ovirt-users] missing hvc0 device on hosted engine

[Martin Sivak]

> 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 at 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 at 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 at 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 at ovirt.org [mailto:users-bounces at ovirt.org] On Behalf Of Martin Sivak
> Sent: Monday, February 06, 2017 4:21 PM
> To: users at 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 at 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
>>
>>
>>
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