June 2013 - Users - libvirt List Archives

[libvirt-users] some problem with snapshot by libvirt
by xingxing gao 21 Nov '14

21 Nov '14

Hi,all,i am using libvirt to manage my vm,in these days i am testing the libvirt snapshot ,but meet some problem: the snapshot was created from this command: snapshot-create-as win7 --disk-only --diskspec vda,snapshot=external --diskspec hda,snapshot=no but when i tried to revert from the snapshot which created from the above command ,i got error below: virsh # snapshot-revert win7 1338041515 --force error: unsupported configuration: revert to external disk snapshot not supported yet version: virsh # version Compiled against library: libvir 0.9.4 Using library: libvir 0.9.4 Using API: QEMU 0.9.4 Running hypervisor: QEMU 1.0.93

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[libvirt-users] deadlock on connection loosing
by Александр 09 Jul '13

09 Jul '13

libvirtd will lock if for example kill programm which established connection, only sigkill + restart helps., to reproduce: virConnectPtr libvirt_connection = virConnectOpen("qemu:///system"); if(libvirt_connection == NULL) { std::cout<<"failed to connect to qemu:///system\n"; exit(-1); } exit(0);

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[libvirt-users] Same credentials stored in auth.conf for many servers
by Maciej Gałkiewicz 30 Jun '13

30 Jun '13

Hello According to client authentication in documentation ( http://libvirt.org/auth.html) it is possible to store credentials in auth.conf file and make appropriate mappings to servers: [auth-$SERVICE-$HOSTNAME] credentials=$CREDENTIALS Is it possible to use the same credentials for many servers without explicitly describing it? For example replacing: [auth-libvirt-myhost1] credentials=mycred [auth-libvirt-myhost2] credentials=mycred with: [auth-libvirt-myhost*] credentials=mycred or [auth-libvirt-any] credentials=mycred regards -- Maciej Gałkiewicz Shelly Cloud Sp. z o. o., Sysadmin http://shellycloud.com/, macias(a)shellycloud.com KRS: 0000440358 REGON: 101504426

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[libvirt-users] VMware distributed port groups..Supported?
by Morgan McLean 30 Jun '13

30 Jun '13

Hi, I installed libvirt on CentOS 6 today, only to find I could create the volume, create the VM, but could not assign the interface to a distributed port group. I then downloaded the latest source, compiled, and it looks to be the same...unless its under a command I'm not recognizing? Does anybody have the great tip that is going to set me free? I hope? Everything we use is on the vSwitches, as we run 60-80 VLAN's to each cluster member. -- Thanks, Morgan

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[libvirt-users] add support to vde2
by Rodolfo Andres 30 Jun '13

30 Jun '13

what about add support to vde2??, in vde2-svn you can find a patch but is outdated, try to apply to current version but lots of rej. sadly im not a dev so cant help.. Regards. --

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[libvirt-users] managedsave results in unexpected shutdown from inside Windows
by Nicolas Sebrecht 28 Jun '13

28 Jun '13

Hi, I'm facing a strange behaviour of windows 2008 guests. After a virsh managedsave and start, the windows guest open a "unexpected shutdown" window. The window looks like this one (randomly taken from the web): http://toastytech.com/guis/srv2k3login2.jpg This happens in all virtualized windows in a hypervisor. Has anyone else experienced such issue? Thanks, -- Nicolas Sebrecht

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[libvirt-users] qemu-img convert to "sparse" LV
by Edoardo Comar 28 Jun '13

28 Jun '13

Apologies as this is is not a specific libvirt question. Is qemu-img convert compatible with thin-provisioned LVs as targets ? I wanted to convert a file-based image to a LV image where the file-based image has a capacity much larger than the actual data it contains, so it has a small footprint on disk (either a qcow2 or a raw, but sparse, image). If I use qemu-img convert -O raw ... with a target LV sized to the full capacity of the file-image, all is fine. But if I try use an LV whose virtual size equals the capacity, but its size is smaller (although more than enough for the data) the LV is invariably corrupt. If I try use a thin-provisioned LV pool, and a LV backed by that pool, the LV resulting from qemu-img convert is not corrupt but it uses as much space as the file-image capacity it came from. This on both RHEL64 and Fedora18. -------------------------------------------------- regards, Edoardo Comar WebSphere Application Service Platform for Networks (ASPN) ecomar(a)uk.ibm.com +44 (0)1962 81 5576 IBM UK Ltd, Hursley Park, SO21 2JN Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU

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[libvirt-users] virt-manager 0.10.0 gentoo bug on start?
by Marko Weber | ZBF 28 Jun '13

28 Jun '13

hello i installed virt-manager 0.10.0 on gentoo. on start i get: Fehler beim Starten des Virtual Machine Managers: cannot import name SpiceClientGtk Traceback (most recent call last): File "/usr/share/virt-manager/virt-manager", line 303, in <module> main() File "/usr/share/virt-manager/virt-manager", line 267, in main from virtManager.engine import vmmEngine File "/usr/share/virt-manager/virtManager/engine.py", line 45, in <module> from virtManager.details import vmmDetails File "/usr/share/virt-manager/virtManager/details.py", line 37, in <module> from virtManager.console import vmmConsolePages File "/usr/share/virt-manager/virtManager/console.py", line 28, in <module> from gi.repository import SpiceClientGtk ImportError: cannot import name SpiceClientGtk i dont set useflag spice. so why it alerts it cant import spice? any ideas ? thank you marko

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[libvirt-users] error : Failed to find user record for uid '32722'
by Tony Cebzanov 28 Jun '13

28 Jun '13

I'm trying to use the libvirt Python API to manage VirtualBox VMs on Mac OS X 10.8.3. I'm running libvirt 1.0.6 via Homebrew. However, the following trivial Python script: import libvirt conn = libvirt.open('vbox:///session') gives me the following error: libvirt: error : Failed to find user record for uid '32722': Success Traceback (most recent call last): File "ch3vm.py", line 3, in <module> conn = libvirt.open('vbox:///session') File "/usr/local/lib/python2.7/site-packages/libvirt.py", line 236, in open if ret is None:raise libvirtError('virConnectOpen() failed') libvirt.libvirtError: Failed to find user record for uid '32722': Success I have no idea where that uid 32722 is coming from -- it's not the uid of my user account, any of my VirtualBox files, or anything else that I'm aware of. Anyone have any idea what's going on here?

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[libvirt-users] virsh can create vHBA, but returen error msg "Node device not found"
by Dennis Chen 28 Jun '13

28 Jun '13

Hi, I am using the libvirt 1.0.6 with the patch applied: http://libvirt.org/git/?p=libvirt.git;a=commitdiff;h=371c155 The problem I encountered is, with virsh comand 'nodedev-create /home/kvm/vHBA.xml', the vHBA can be generated as expected on the host, but error msg will show in the virsh shell: libvirt: Node Device Driver error : Node device not found I try to find the reason with gdb, and found that the 'nodedev-create' command will call virNetClientIOEventLoop() function of the remote driver, in this function, code will wait on: repoll: ret = poll(fds, ARRAY_CARDINALITY(fds), timeout); after about 50s, poll() returns, but the replied msg->header.status=VIR_NET_ERROR. I am not familiar with the rpc call in the remote driver, does anybody here can give some clues? BRs, Dennis

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