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[libvirt-users] learn XML <network/>
by Michael Löblich 19 May '10

19 May '10

Can please anybody write a XML-description for the diagram shown on http://libvirt.org/archnetwork.html Michael

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[libvirt-users] virsh domxml-from-native not working
by Ralf Hornik Mailings 18 May '10

18 May '10

Dear list, when I try to convert the (working) command /usr/bin/qemu-system-x86_64 \ -drive file=/dev/xen_vol/xen_ca,cache=none,if=virtio,boot=on \ -net nic,model=virtio,macaddr=00:16:3E:04:F5:6D \ -net tap,ifname=tap1 -m 256 -name ca \ -vnc 10.0.0.100:4 -daemonize -k de into an xml file: <domain type='qemu'> <name>ca</name> <uuid>dfef3884-d7a9-f6cf-5204-1615963cc0e8</uuid> <memory>262144</memory> <currentMemory>262144</currentMemory> <vcpu>1</vcpu> <os> <type arch='x86_64'>hvm</type> </os> <features> <acpi/> </features> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <emulator>/usr/bin/qemu-system-x86_64</emulator> <disk type='block' device='disk'> <driver cache='none'/> <source dev='/dev/xen_vol/xen_ca'/> <target dev='vda' bus='virtio'/> </disk> <interface type='ethernet'> <mac address='00:16:3e:04:f5:6d'/> <target dev='tap1'/> <model type='virtio'/> </interface> <input type='mouse' bus='ps2'/> <graphics type='vnc' port='5904' autoport='no' listen='10.0.0.100'/> <video> <model type='cirrus' vram='9216' heads='1'/> </video> </devices> </domain> Then it stops to boot while haning on "Loading Grub Stage 2". Additionally, the keyboard encoding "de" is missing. The corresponding process is: /usr/bin/qemu-system-x86_64 -S -M pc-0.12 -no-kvm -m 256 \ -smp 1,sockets=1,cores=1,threads=1 \ -name ca -uuid dfef3884-d7a9-f6cf-5204-1615963cc0e8 \ -nodefaults \ -chardev socket,id=monitor,path=/usr/local/libvirt/var/lib/libvirt/qemu/ca.monitor,server,nowait \ -mon chardev=monitor,mode=readline -rtc base=utc -boot c \ -drive file=/dev/xen_vol/xen_ca,if=none,id=drive-virtio-disk0,boot=on,cache=none \ -device virtio-blk-pci,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0 \ -device virtio-net-pci,vlan=0,id=net0,mac=00:16:3e:04:f5:6d,bus=pci.0,addr=0x5 \ -net tap,ifname=tap1,vlan=0,name=hostnet0 -usb -vnc 10.0.0.100:4 \ -vga cirrus -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 Any Ideas, hats going wrong? Thank yout and best regards Ralf Hornik

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[libvirt-users] Sharing same storage on two diffrent KVM hosts
by shy Perets 17 May '10

17 May '10

Hello , I whould like your suggestion regarding the following problem : I got 2 host which are running under RHEL5.4 hypervizor . both of the hosts disks is a logical volume .( Each for each ) under the same VG . I want to add storage ( another logical volume ) which will be availble for both of the host as local disk . ( Share storage ) Thanks .

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[libvirt-users] Can not restore domain from a shared state file
by Zhang Qian 16 May '10

16 May '10

Hi, I have two KVM host: h1 and h2, both of them mount an NFS directory as a shared storage. I can save (virsh save <domain> <file>) a domain in h1 to a state file in the shared storage successfully, but failed to restore it from h2 with the following error message: # virsh restore testRes.dat error: Failed to restore domain from testRes.dat error: operation failed: failed to start VM I can always restore it from h1, but sometimes works for h2 (wait for a while, then "virsh restore" command may succeed in h2). I guess the state file generated by "virsh save" command is not intact from h2 point view, may be cause by the cache of NFS server? Any suggestions will be really appreciated, thanks in advance! Regards, Qian

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[libvirt-users] XML-Created domain vanishes after shutdown
by Alexander Topolanek 16 May '10

16 May '10

Hi, im migrating existing kvm-images into libvirt domains, by creating a domain in virsh from a xml file. The domain starts, is working fine, but after shutdown it is lost, and I have to recreate it. BTW, can I reset the domain count somewhere? Any ideas? thx and kind regards Alexander virsh # version Compiled against library: libvir 0.4.6 Using library: libvir 0.4.6 Using API: QEMU 0.4.6 Running hypervisor: QEMU 0.9.1 This is my xml file: <domain type='qemu' id='2'> <name>munin</name> <uuid>6bb2995a-5443-2ddb-67fe-d69a9814ece4</uuid> <memory>262144</memory> <currentMemory>524288</currentMemory> <vcpu>2</vcpu> <os> <type arch='x86_64' machine='pc'>hvm</type> <boot dev='hd'/> </os> <features> <acpi/> <apic/> <pae/> </features> <clock offset='utc'/> <on_poweroff>preserve</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/bin/kvm</emulator> <disk type='file' device='disk'> <source file='/var/kvm/virsh/munin.img'/> <target dev='hda' bus='ide'/> </disk> <interface type='bridge'> <mac address='00:30:1c:45:40:02'/> <source bridge='br0'/> <target dev='vnet0'/> <model type='virtio'/> </interface> <input type='mouse' bus='ps2'/> <graphics type='vnc' port='5900' autoport='yes' listen='127.0.0.1' keymap='de'/> </devices> </domain>

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[libvirt-users] Red Hat Bugzilla – Bug 592671 : can't use any sound device from virt-manager
by Arthur Pemberton 16 May '10

16 May '10

url : https://bugzilla.redhat.com/show_bug.cgi?id=592671 basically I'm not getting any sound devices when invoking from virt-manager at least. -- Fedora 11 (www.pembo13.com)

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[libvirt-users] How to eject cdrom by libvirt API
by Zhang Qian 14 May '10

14 May '10

Hi, I want to eject cdrom by calling libvirt C API, I found there is a similar feature in virt-manager: disconnect cdrom from the related iso file, I am wondering how to achieve this by libvirt API. Thanks! Regards, Qian

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[libvirt-users] remote libvirt vbox
by angelo alfano 11 May '10

11 May '10

I tried: import libvirt conn = libvirt.open("vbox+ssh://user@192.168.0.10/session") Prompted for a password for ssh connection, but returns this error: libvir: QEMU error : server closed connection Traceback (most recent call last): File "/home/angelo/workspace/test.py", line 11, in <module> conn = libvirt.open("vbox+ssh://user@192.168.0.10/session") File "/usr/lib/python2.6/dist-packages/libvirt.py", line 169, in open if ret is None:raise libvirtError('virConnectOpen() failed') libvirt.libvirtError: server closed connection

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[libvirt-users] error libvirt
by angelo alfano 11 May '10

11 May '10

I have a problem con libvirt, if running this python code: import libvirt conn = libvirt.open("vbox:///session") return this error: libvir: QEMU error : server closed connection libvir: warning : Failed to find the interface: Is the daemon running ? libvir: Remote error : unable to connect to '/var/run/libvirt/libvirt-sock': Connection refused libvir: warning : Failed to find a node driver: Is the libvirtd daemon running ? libvir: Remote error : unable to connect to '/var/run/libvirt/libvirt-sock': Connection refused libvir: warning : Failed to find a secret storage driver: Is the daemon running ? If I running the python code in sudo mode, I don't have error. I have before add the my user at the group "libvirtd" with: sudo adduser user libvirtd Angelo

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[libvirt-users] Volume not found when migrating a VM
by Mathias Tausig 10 May '10

10 May '10

Hello! I want to migrate a machine from one host to another. But upon running migrate drbd01 qemu+tls://192.168.20.2/system in virsh, I get the error message Fehler: cannot open file '/dev/masterGroup/drbd01_system': No such file or directory "/dev/masterGroup/drbd01_system" is the LVM based system volume of the VM to be migrated which is of course available (the machine can be started without any problem). I tried to execute the migrate comman both locally and remote. I am using libvirt 0.8.1 under SLES11. regards Mathias

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