[ovirt-users] Hosted Engine won't start, how to debug?

[Thomas Klute]

Dear Martin,

thanks for the feedback.
We already read this and tried it.
It seems to me that the graphics device was removed from the hosted
engine by some ovirt release.

If I try to set a console password I see this message:

hosted-engine --add-console-password
Enter password:
no graphics devices configured

Furthermore, there is nothing listening on port 5900 after that.
The HostedEngine qemu process shows a " -display none " as parameter and
I have no idea where this can be changed.

I already created a /var/run/ovirt-hosted-engine-ha/vm-custom.conf
containing:
display=vnc
kvmEnable=true

But nothing changed.
I also edited the HostedEngine VM config using virsh and added a vnc
display:
/usr/bin/virsh -c
qemu:///system?authfile=/etc/ovirt-hosted-engine/virsh_auth.conf edit
HostedEngine

    <graphics type='vnc' port='12355' autoport='no' listen='0.0.0.0'>
      <listen type='address' address='0.0.0.0'/>
    </graphics>
    <video>
      <model type='qxl' ram='65536' vram='65536' vgamem='16384'
heads='1' primary='yes'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07'
function='0x0'/>
    </video>

But there is still "display none" passed as command line parameter to
qemu and thus, I suppose, there's no display.

Any help is appreciated, thanks,
Thomas


> Hi,
>
> the serial console will show output if the kernel knows to use it.
>
> The VNC approach is also possible and I believe we already have a
> graphical device present. What you are looking for is probably this
> (VNC method is described there):
> https://www.ovirt.org/documentation/how-to/hosted-engine/#handle-engine-vm-boot-problems
>
> Best regards
>
> --
> Martin Sivak
> SLA / oVirt
>
> On Fri, Apr 13, 2018 at 11:26 AM, Thomas Klute <klute at ingenit.com> wrote:
>> Dear oVirt Team,
>>
>> after trying to reboot a hosted engine setup on oVirt 4.2 the VM won't
>> come up anymore.
>> The qemu-kvm process is there but we're unable to access the VM using
>> - the serial console (simply does not show anything, does not react to
>> characters typed)
>> - VNC / Spice because the hosted engine vm.conf does not contain any
>> graphics device.
>>
>> Before trying to reinstall, we'd like to recover and debug what is going on.
>> We mounted a Centos7 install .iso and started the VM using
>> hosted-engine --vm-start
>> --vm-conf=/var/run/ovirt-hosted-engine-ha/vm-custom.conf
>> But we still have to problem, that the serial console does not show
>> anything and there is no way to connect using VNC.
>>
>> So, what is the recommended way to move forward in such situation?
>> IMHO the classical way would be to add a graphics device and connect via
>> VNC?
>> I did not use the serial console much, up to now. Should the serial
>> console show any output during boot?
>>
>> Thanks for your help,
>>  Thomas
>>
>> --
>> ________________________________________________________________________
>>
>>  Dipl.-Inform. Thomas Klute                           klute at ingenit.com
>>  Geschäftsführer / CEO
>>  ----------------------------------------------------------------------
>>  ingenit GmbH & Co. KG                       Tel. +49 (0)231 58 698-120
>>  Emil-Figge-Strasse 76-80                    Fax. +49 (0)231 58 698-121
>>  D-44227 Dortmund                                       www.ingenit.com
>>
>>  Registergericht: Amtsgericht Dortmund, HRA 13 914
>>  Gesellschafter : Thomas Klute, Marc-Christian Schröer
>> ________________________________________________________________________
>>
>> _______________________________________________
>> Users mailing list
>> Users at ovirt.org
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>

Sollten noch Fragen offen sein, stehen wir Ihnen natürlich jederzeit
gerne zur Verfügung.

Mit Grüßen aus Dortmund,
 Thomas Klute

-- 
________________________________________________________________________

 Dipl.-Inform. Thomas Klute                           klute at ingenit.com
 Geschäftsführer / CEO
 ----------------------------------------------------------------------
 ingenit GmbH & Co. KG                       Tel. +49 (0)231 58 698-120
 Emil-Figge-Strasse 76-80                    Fax. +49 (0)231 58 698-121
 D-44227 Dortmund                                       www.ingenit.com

 Registergericht: Amtsgericht Dortmund, HRA 13 914
 Gesellschafter : Thomas Klute, Marc-Christian Schröer
________________________________________________________________________