virt-viewer over ssh ubuntu 12

PoleStar · 09-12-2022, 11:23 AM

Hello,

I have kvm hypervisor running ubuntu 12/virsh. One of the guest server did not come back after reboot.
I reach to kvm hypervisor via
windows-jumpbox-->linuxserver-->kvm hypervisor

Code:

virt-viewer --display=$DISPLAY  <guest-sever>
Cannot open display: localhost:0.0
Run 'virt-viewer --help' to see a full list of available command line options

Any ideas how can I look at the guest server console ?

Turbocapitalist · 09-13-2022, 04:09 AM

Quote:

Originally Posted by PoleStar

Any ideas how can I look at the guest server console ?

You'd have to forward the ports all the way through.

Code:

ssh -X -J linuxjumpbox.example.com -J linuxserver.example.com kvmhypervisor 'virt-viewer --display=$DISPLAY  <guest-sever>'

If that doesn't do it, then more information about how you are connecting, and which distro you are connecting from, is needed.

The default for forwarded displays is usually "localhost:10.0".

PoleStar · 09-15-2022, 02:04 PM

I tried to simplify the issue.

I installed a new ubuntu-18 (gnome) server and log into kvm-hypervisor from there.
Then tried to run "xeye"

please check the attachment.

Turbocapitalist · 09-15-2022, 02:14 PM

(There are several question marks there. Ubuntu 12.04 has been EOL for ages and should be replaced, in most situations.)

What is the content of the $DISPLAY environment variable on the machine you are connecting to?

On the machine you are connecting from, do you have X11 or Wayland? You need the former.

PoleStar · 09-15-2022, 02:58 PM

Code:

# head -30  /var/log/dpkg.log.1
2022-09-12 11:25:47 startup archives unpack
2022-09-12 11:25:48 install x11-common <none> 1:7.6+12ubuntu2
2022-09-12 11:25:48 status half-installed x11-common 1:7.6+12ubuntu2
2022-09-12 11:25:48 status triggers-pending man-db 2.6.1-2ubuntu2
2022-09-12 11:25:48 status half-installed x11-common 1:7.6+12ubuntu2
2022-09-12 11:25:48 status triggers-pending ureadahead 0.100.0-12
2022-09-12 11:25:48 status half-installed x11-common 1:7.6+12ubuntu2
2022-09-12 11:25:48 status unpacked x11-common 1:7.6+12ubuntu2
2022-09-12 11:25:48 status unpacked x11-common 1:7.6+12ubuntu2
2022-09-12 11:25:48 install libice6 <none> 2:1.0.7-2build1
2022-09-12 11:25:48 status half-installed libice6 2:1.0.7-2build1
2022-09-12 11:25:48 status unpacked libice6 2:1.0.7-2build1
2022-09-12 11:25:48 status unpacked libice6 2:1.0.7-2build1
2022-09-12 11:25:48 install libsm6 <none> 2:1.2.0-2build1
2022-09-12 11:25:48 status half-installed libsm6 2:1.2.0-2build1
2022-09-12 11:25:48 status unpacked libsm6 2:1.2.0-2build1
2022-09-12 11:25:48 status unpacked libsm6 2:1.2.0-2build1
2022-09-12 11:25:48 install libxt6 <none> 1:1.1.1-2ubuntu0.1
2022-09-12 11:25:48 status half-installed libxt6 1:1.1.1-2ubuntu0.1
2022-09-12 11:25:48 status unpacked libxt6 1:1.1.1-2ubuntu0.1
2022-09-12 11:25:48 status unpacked libxt6 1:1.1.1-2ubuntu0.1
2022-09-12 11:25:48 install libxmu6 <none> 2:1.1.0-3
2022-09-12 11:25:48 status half-installed libxmu6 2:1.1.0-3
2022-09-12 11:25:48 status unpacked libxmu6 2:1.1.0-3
2022-09-12 11:25:48 status unpacked libxmu6 2:1.1.0-3
2022-09-12 11:25:48 install libxpm4 <none> 1:3.5.9-4ubuntu0.1
2022-09-12 11:25:48 status half-installed libxpm4 1:3.5.9-4ubuntu0.1
2022-09-12 11:25:48 status unpacked libxpm4 1:3.5.9-4ubuntu0.1
2022-09-12 11:25:48 status unpacked libxpm4 1:3.5.9-4ubuntu0.1
2022-09-12 11:25:48 install libxaw7 <none> 2:1.0.9-3ubuntu1

I just set export DISPLAY=127.0.0.1:11.0

Code:

# env | grep DIS
DISPLAY=127.0.0.1:11.0

PoleStar · 09-16-2022, 03:05 PM

Problem was resolved but in funny way.

I run xeyes/xclock via putty.. but it open it in desktop console.
When I run xeyes/xclock in desktop.. it also open in desktop console.

I think I need a unique/different "DISPLAT=" for putty.