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last time I had virt-manager + Desktop on my centos server everything was fine then I removed desktop for more security. and after a while I installed it again and now when I open virt-manager it doesn't show the list of KVMs but it's connected and displays the details.

can anyone please explain how Can I fix it ?

Zim3r
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  • Explain what do you mean by saying *it doesn't show the list of KVMs but it's connected and displays the details*? What details does it show then? Also you don't really need GUI on your server, it's a server afterall. Simple `virsh -c qemu:///system list --all` would do. – Ihor Kaharlichenko Aug 17 '12 at 10:25
  • Thanks, I mean by clicking on `localhost (QEMU)` It's pops a windows containing details. I could connect to virt-manager remotely and it works fine. I need GUI to create VMs. Thanks – Zim3r Aug 17 '12 at 11:30
  • It contains details of what? Of the connection? Or does it show the list of kvm guests? Also, you can't connect *to* virt-manager since it is a GUI, but you can connect *with* it *to* a remote server, that's what I usually do to manage my hosts usually. – Ihor Kaharlichenko Aug 17 '12 at 11:34
  • When I open virt-manager in my server from VNC, It shows the hypervisor connection but I also have 5 VMs running that it doesn't show those VMs. details is equal to right clicking on hypervisor connection and select details. – Zim3r Aug 17 '12 at 11:37

1 Answers1

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Assuming you KVM host server's (CentOS) IP is $SERVER.

Run the following in console:

localhost$ virsh -c qemu+ssh://$SERVER/system list --all

This should show the list of libvirt quests as seen from your PC. Here's an example output (taken from my server):

 ID Name                 Status
----------------------------------
  1 freebsd9             running
  3 router               running
  - node1                shut off

Now run this:

localhost$ ssh $SERVER
centos-server$ virsh -c qemu:///system list --all

This should show the list of libvirt quests as seen from the server. Here's an example output (taken from my server):

 ID Name                 Status
----------------------------------
  1 freebsd9             running
  3 router               running
  - node1                shut off

As you can see the outputs are pretty much the same, as they should be.

In your case both of them should list 5 running guests. If not, you can at least figure out "who's lying", the local vision or the remote one.

EDIT:

You don't need to connect to your CentOS server via VNC just to have virt-manager's GUI to config your KVM guests. As I already said having a GUI on the server installed is... weird, bad practice, etc.

Instead install virt-manager on your local PC and connect from it to the CentOS server. It even works faster since you don't work over vnc!

Just add a new remote connection via File > Add Connection menu of the virt-manager, then fill your connection details like this:

enter image description here

Ihor Kaharlichenko
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  • Thanks, listing VMs is not the only problem I want to edit them through virt-manager and something I noticed now is it works fine remotely but on It doesn't work through VNC in my server – Zim3r Aug 17 '12 at 11:59
  • Thanks again. I tried this before but it's way too slow. I don't know why. SSH and VNC are OK but remote virt-manager is very slow. what do you think causes this? – Zim3r Aug 17 '12 at 12:34
  • What exactly is *very slow*? GUI response? Locally running GUI applications will **always** perform better then the ones shown via some kind of remote desktop (VNC, RDP, whatever). From my experience managent of remote KVM-hosts in virt-manager performs are smooth as the local ones. – Ihor Kaharlichenko Aug 17 '12 at 12:41
  • I can easily manage VMs via VNC but Yes GUI response in remote virt-manager is really a pain. – Zim3r Aug 17 '12 at 12:50
  • That's exactly what I am suggesting to fix: run virt-manager *locally* and connect to the *remote* libvirt host instead of running virt-manager *remotely via VNC* but connecting to a *local* libvirt host. – Ihor Kaharlichenko Aug 17 '12 at 12:52
  • Sorry but what you suggest to do is what I mean. that's slow. and VNC is faster for me. I'm a bit confused :D – Zim3r Aug 17 '12 at 12:55