- Users - libvirt List Archives

[libvirt-users] How to enable SELinux driver for libvirt?
by Qiang Guan 22 Aug '14

22 Aug '14

Hi guys, It seems libvirt disable SELinux driver by default. How to enable SELinux driver for libvirt? -- ------------ Jackie Best Regards

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[libvirt-users] virt-sandbox-service
by Gene Czarcinski 22 Aug '14

22 Aug '14

Is there any documentation/tutorial that explains how to use virt-sandbox-service? After looking at some writeups about virt-sandbox-service, this looks like a good tool for something I need to do. But, following the "examples" I cannot get anything to work correctly. With a simple xfce install with httpd, lighttpd, and libvirt-sandbox installed, I tried: 1. virt-sandbox-service create -C -u lighttpd.service webserver1 which produced a python traceback?? 2. virt-sandbox-service create -C -u httpd.service webserver2 Which appeared to work correctly but when I tried: virt-sandbox-service start webserver2 I got an error message saying that "start" was not valid??? 3. On another system with lighttpd and httpd already installed and able to run, I updated libvirt and friends to the preview version. My virtual systems seem to run OK. I then installed libvirt-sandbox and tried: virt-sandbox-service create -C -u httpd.service tstserver which got some error messages about sockets. I assume that this stuff has to work for someone. HELP! Gene

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[libvirt-users] virsh snapshot
by Adam King 22 Aug '14

22 Aug '14

Hi, I had a 'domain' called APP03. I was performing auto snapshots each night using /usr/bin/virsh snapshot-create APP03 . I then wanted the domain to be called APP01 for clarity's sake, so I did virsh dumpxml APP03 > APP03.xml, edited the name to APP01 and changed the ID. I then did virsh define APP03.xml to get APP01. I have now realised that the qcow2 images are huge (1.1TB image but 80G inside the virtual machine), I am assuming this is the snapshots tagged onto the virtual hard disk? How do I reduce the size of those back to something realistic? I've removed old snapshots from APP03 using virsh snapshot-delete APP03 '<snapshotidnumber> Hope this makes sense

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[libvirt-users] Reboot, halt, poweroff called inside an lxc domain
by Michal Witanowski 21 Aug '14

21 Aug '14

Hi all, Is there any possibility (using libvirt C API or whatever else) to "propagate" shutdown events (reboot, halt, power off) to a host? The API seems to lack this functionality - there exists function virConnectDomainEventRegisterAny, but the virDomainEventStoppedDetailType enum does not distinguish between these 3 different situations. Moreover, while rebooting a machine, an additional argument can be passed to reboot() syscall, which will be used by bootloader during the startup. Ideally, when calling e.g. "reboot recovery" inside an lxc container I'd like to be informed (inside host) that "reboot" was called with "recovery" as additional argument, so I can take appropriate actions. Thanks in advance. Best regards, Michal

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[libvirt-users] failed to initialize directx in w7
by arnaud gaboury 21 Aug '14

21 Aug '14

I am not sure this issue is tight to Red Hat qxl GPU driver, but I can't initialize directxX on a guest windows 7. Trying to start a game, I get the error message : Failed to initialize directX Of course, directX is installed on the w7 guest, and properly. The dxdiag command, a directx diagnostic tool, does not show any error. Some summary under the video : Driver name : Red Hat QXL GPU Processor type : SeaBIOS VBEC(C) 2011 No Directx functionality are available (Direct Draw, Direct3D, AGP texture) I am not a windows expert, but I would like to know if DirectX is compatible with QXL driver. If not, what is the process to be able to run directX on the windows guest ? If both are compatible, what did I miss ? The VM is working perfectly with virtio & qxl. Please find below my virt-install command: ----------------------------- virt-install --connect qemu:///system --name=tintinWinoz --memory 4096 --cpu host-model-only --os-variant=win7 --disk /myVM/tintin --boot cdrom,hd --virt-type kvm --graphics spice --controller scsi,model=virtio-scsi --cdrom /dev/cdrom --disk /drawer/myIso/w7.iso,device= cdrom ----------------------------------------------------- I thereafter installed manually from the w7 guest virtio & qxl drivers. Thank you for advises.

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[libvirt-users] Libvirt Java API to get CPU usage of VM (KVM)
by Restituto Marcus Arevalo 21 Aug '14

21 Aug '14

Hi all libvirt-users, Is there a counterpart on Java of the function virDomainGetCPUStats that is based on C API? Because I am trying to create a program based on java to get the CPU usage of a Guest/Domain/VM in KVM using the Libvirt Java API. Honestly, I am having a hard time in starting my program. I have no idea where to start. I mean, what functions do I need to get the CPU usage of the guest/domain in KVM? I know there are other options but I am avoiding in connecting to the VM through SSH and get the CPU usage. To make things easier to understand, I need to know how the Virtual Machine Manager in Linux is able to output a graph of the CPU usage of EACH VM. I really need help. I have no idea where to start. Any suggestions would be much appreciated. I'll try to post a screenshot of the graph later. regards, Marco

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[libvirt-users] disable-ticketing
by mhd 20 Aug '14

20 Aug '14

hi... where usually disable-ticketing is avaliable in vm xml ???? i use this command virsh edit vmname and i can edit any options and added but when add this option to <graphics> as example : <graphics disable-ticketing='yes'> or <graphics> <disable-ticketing /> </graphics> nothing happened the file return to first status only this option ... if i add passwd in <graphics> is took as example: <graphics passwd='111111'> it's work and vm xml is edited...

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[libvirt-users] virt-install: failed to initialize KVM: Permission denied
by arnaud gaboury 20 Aug '14

20 Aug '14

As a regular user, member of the libvirt group, I run this command to create a basic VM: virt-install --connect qemu:///system --name=test --ram 2048 --cpu host-model-only --os-variant=win7 --disk /myVM/test --boot cdrom,hd --virt-type kvm --graphics spice --controller scsi,model=virtio-scsi --cdrom=/drawer/myIso/w8.iso It returns an error : --------------------------------- Starting install... ERROR internal error: process exited while connecting to monitor: Could not access KVM kernel module: Permission denied failed to initialize KVM: Permission denied --------------------------------- $ getfacl /dev/kvm # file: dev/kvm # owner: root # group: kvm user::rw- user:martinus:rw- group::rw- mask::rw- other::--- The command return seems to indicate rights are correct. $ lsmod return kvm & kvm_intel are loaded. If I run the virt-install with qemu:///session, I do not have this issue and can create the VM. I found many entries about the KVM permission issue, but with no clear answer to solve it. Thank you for any suggestion -- google.com/+arnaudgabourygabx

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[libvirt-users] Guest vlan trunk port networking issues
by Dennis Jacobfeuerborn 20 Aug '14

20 Aug '14

Hi, I'm having trouble getting networking to work and I'm not sure what I'm doing wrong. The network interface of the host is connected to a switch-port that is configured as trunk and allows tagged traffic for vlan id 10. The host itself has the interfaces eth1.10 and eth1 defined. eth1.10 is configured with the primary ip address of the host system and eth1 is slave of the bridge br1. I installed a guest with a virtual network interface that is added to br1 the idea being that I can define an interface eth0.10 in the guest and have the tagged traffic forwarded this way: (guest) eth0.10 (packet gets tagged with id 10) -> (host) vnet0 -> (host) br1 -> (host) eth1 -> network The issue is that when I do a ping in the guest I see the arp request on eth1 with tcpdump but no response as if the packet doesn't reach its target. Normaly at this poing I would suspect the switchport configuration but when I ping the same IP from the host (which has an IP in the same network on interface eth1.10) this ping works fine. Does anybody have experience with this and maybe an idea why the host can reach the ip in vlan 10 but the guest can not? Could this be a routing issue that the system somehow discards the packets flowing through eth1 directly because there also is an interface eth1.10 present? Regards, Dennis

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[libvirt-users] How to install libvirt-python from source code?
by Can Zhang 19 Aug '14

19 Aug '14

Hi, I’d like to install a latest version libvirt on CentOS 6.5. I compiled libvirt, it worked well and then I tried to install libvirt-python. The version is libvirt-python-1.2.7, and I used `python setup.py build` and `sudo python setup.py install` to install. But in python, I get errors like: ========== >>> import libvirt Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/lib64/python2.6/site-packages/libvirt.py", line 28, in <module> raise lib_e ImportError: /usr/lib64/python2.6/site-packages/libvirtmod.so: undefined symbol: virTypedParamsAddBoolean ========== Someone would help? Best regards, Can Zhang

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