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[libvirt-users] Questions and a blockpull issue
by Abbas 23 Oct '12

23 Oct '12

Coming off of xen environment; still testing with kvm, just a few questions: 1. What is the roadmap for release of qemu-kvm 1.1 and libvirt 0.10.2 for el6, cause I had to compile from upstream to get the latest stuff. 2. Should not virt-manager show the sparsed disk size instead of actual reserved size of a vm? 3. Where is the virsh bash_completion conf.d file from upstream; since el6 rpm for it seems have tab completion built right into virsh shell. 4. Created a disk-only snapshot of a vm CO1 called capture1 but the syntax of blockpulling seems to be opposite from what has been advertised on Fedora and other relative wikis. Check below and the error with first blockpull command. [root@KVM libvirt]# virsh snapshot-create-as CO1 capture1 "CO1s first snapshot test" --disk-only --atomic [root@KVM libvirt]# virsh -d 0 blockpull CO1 --path /home/vms/co1.img --bandwidth 500 --base /home/vms/co1.capture1 blockpull: domain(optdata): CO1 blockpull: path(optdata): /home/vms/co1.img blockpull: bandwidth(optdata): 500 blockpull: base(optdata): /home/vms/co1.capture1 blockpull: found option <domain>: CO1 blockpull: <domain> trying as domain NAME error: invalid argument: No device found for specified path [root@KVM libvirt]# virsh -d 0 blockpull --domain CO1 --path /home/vms/co1.capture1 --base /home/vms/co1.img --verbose --wait blockpull: domain(optdata): CO1 blockpull: path(optdata): /home/vms/co1.capture1 blockpull: base(optdata): /home/vms/co1.img blockpull: verbose(bool): (none) blockpull: wait(bool): (none) blockpull: found option <domain>: CO1 blockpull: <domain> trying as domain NAME Block Pull: [100 %] Pull complete Best, Abbas.

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[libvirt-users] Unable to start guest
by Jeremy Johnston 23 Oct '12

23 Oct '12

I have been picking away at this problem and I have not been able to resolve it yet and it appears quite puzzling to me, I am attempting to start a guest on KVM and receive 'error: An error occurred, but the cause is unknown'. I have a feeling this may be something simple I am overlooking. I have included log files and the xml of the guest at http://node4.smart-serv.net/~jeremy/libvirt/

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[libvirt-users] using vbox driver hypervisor support
by p.venkatasrinivas＠tcs.com 23 Oct '12

23 Oct '12

Hi, I installed Libvirt. We need virtualbox support for libvirt. But we are unable to see the vbox option in virt-manager. How we can find vbox hypervisor driver? And also we already compiled libvirt with vbox option.(--with-vbox). But that didn't work. And also when we are creating the new virtual machine through virt-manager we are getting the following error: internal error cannot parse QEMU version number in "" Can you please suggest on this what we need to do as soon as possible? Thanks in advance. Srinivas =====-----=====-----===== Notice: The information contained in this e-mail message and/or attachments to it may contain confidential or privileged information. If you are not the intended recipient, any dissemination, use, review, distribution, printing or copying of the information contained in this e-mail message and/or attachments to it are strictly prohibited. If you have received this communication in error, please notify us by reply e-mail or telephone and immediately and permanently delete the message and any attachments. Thank you

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[libvirt-users] start and stop a VMware VM using libvirt API
by Ali Nikzad 23 Oct '12

23 Oct '12

Hi, I am a new libvirt user and I wonder if I can use this library to start or stop a VM in ESXi 5.0. For example to write an application using libvirt in windows or linux that connects to an ESXi 5.0 server and get the list of VMs and start one of them. If so, is there any sample about it? Thank you, Ali

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[libvirt-users] Get data of Physical Machine
by Vinicius Gonçalves Braga 23 Oct '12

23 Oct '12

Hey, What kind of data de NodeInfo represents? With my researches I thought that it should return the data of the physical machine. But in my tests, when I run with diferents URLs in Connect creation the values of nodeInfo variables are differents. For example: it's the same machine, but if I run with xen:/// the memory is X and if I run with qemu:///session the memory is Y. Connect conn = new Connect("xen:///", false); NodeInfo nodeInfo = conn.nodeInfo(); assertEquals("nodeInfo.model", "i686", nodeInfo.model); assertEquals("nodeInfo.memory", 3145728, nodeInfo.mhz); assertEquals("nodeInfo.cpus", 16, nodeInfo.cpus); assertEquals("nodeInfo.cpus", 16, nodeInfo.maxCpus()); assertEquals("nodeInfo.nodes", 2, nodeInfo.nodes); assertEquals("nodeInfo.sockets", 2, nodeInfo.sockets); assertEquals("nodeInfo.cores", 2, nodeInfo.cores); assertEquals("nodeInfo.threads", 2, nodeInfo.threads); Another question is how can I connect with XenServer, the native hypervisor? Is it the same driver for Xen? Thanks!

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[libvirt-users] 回复： error: internal error lxc state driver is notactive
by #█er 23 Oct '12

23 Oct '12

Thanks for your response, I found that the server's kernel has been changed so I installed the official kernel by yum. but there still question: /usr/bin/virsh -c lxc:/// start instance-00000011 error: Failed to start domain instance-00000011 error: internal error Child process (PATH=/sbin:/usr/sbin:/bin:/usr/bin LIBVIRT_DEBUG=3 LIBVIRT_LOG_OUTPUTS=3:stderr /usr/libexec/libvirt_lxc --name instance-00000011 --console 27 --handshake 30 --background --veth veth1) status unexpected: fatal signal 11 ------------------ 原始邮件 ------------------ 发件人: "Osier Yang"<jyang(a)redhat.com>; 发送时间: 2012年10月22日(星期一) 晚上9:01 收件人: "#█er"<williamkyle(a)vip.qq.com>; 抄送: "libvirt-users"<libvirt-users(a)redhat.com>; 主题: Re: [libvirt-users] error: internal error lxc state driver is notactive On 2012年10月22日 15:55, #█er wrote: > hi: > I want to use libvirt with LXC, but when I use virsh -c lxc:/// to > connect to lxc, it just print these errors: > error: internal error lxc state driver is not active > error: failed to connect to the hypervisor > I searched these error message , but it seems that there is no helpful > information . > > Could you help me solve this problem? > Sounds like you don't have the LXC driver loaded. Possibably you don't have libvirt-daemon-driver-lxc installed if you use libvirt newer enough. Start the daemon like following will help you find out the cause. # LIBVIRT_DEBUG=1 /usr/sbin/libvirtd # virsh -c lxc:/// Regards, Osier

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[libvirt-users] attach-interface not permanent?
by Dennis Jacobfeuerborn 23 Oct '12

23 Oct '12

Hi, I just created a new interface for a running Windows 2008 guest using the attach-interface command which succeeded and I could see the interface in the guest and in the dumpxml output. Then I switched the type to virtio in virt-manager after which I got the message that this change would only appear after the next guest shutdown so I went ahead and shut down the guest. After that the new interface was gone and no longer showed up in the dumpxml output. I'm confused because at no point was it mentioned that the interface would only be added temporarily and the man-page doesn't say anything to that effect either. This happened on a fresh Centos 6.3 system. Any ideas what is going on here? Regards, Dennis

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[libvirt-users] error: internal error lxc state driver is not active
by #█er 22 Oct '12

22 Oct '12

hi: I want to use libvirt with LXC, but when I use virsh -c lxc:/// to connect to lxc, it just print these errors: error: internal error lxc state driver is not active error: failed to connect to the hypervisor I searched these error message , but it seems that there is no helpful information . Could you help me solve this problem? Thanks :)

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[libvirt-users] Questions and a blockpull issue
by Abbas 21 Oct '12

21 Oct '12

Coming off of xen environment; still testing with kvm, just a few questions: 1. What is the roadmap for release of qemu-kvm 1.1 and libvirt 0.10.2 for el6, cause I had to compile from upstream to get the latest stuff. 2. Should not virt-manager show the sparsed disk size instead of actual reserved size of a vm? 3. Where is the virsh bash_completion conf.d file from upstream; since el6 rpm for it seems have tab completion built right into virsh shell. 4. Created a disk-only snapshot of a vm CO1 called capture1 but the syntax of blockpulling seems to be opposite from what has been advertised on Fedora and other relative wikis. Check below and the error with first blockpull command. [root@KVM libvirt]# virsh snapshot-create-as CO1 capture1 "CO1s first snapshot test" --disk-only --atomic [root@KVM libvirt]# virsh -d 0 blockpull CO1 --path /home/vms/co1.img --bandwidth 500 --base /home/vms/co1.capture1 blockpull: domain(optdata): CO1 blockpull: path(optdata): /home/vms/co1.img blockpull: bandwidth(optdata): 500 blockpull: base(optdata): /home/vms/co1.capture1 blockpull: found option <domain>: CO1 blockpull: <domain> trying as domain NAME error: invalid argument: No device found for specified path [root@KVM libvirt]# virsh -d 0 blockpull --domain CO1 --path /home/vms/co1.capture1 --base /home/vms/co1.img --verbose --wait blockpull: domain(optdata): CO1 blockpull: path(optdata): /home/vms/co1.capture1 blockpull: base(optdata): /home/vms/co1.img blockpull: verbose(bool): (none) blockpull: wait(bool): (none) blockpull: found option <domain>: CO1 blockpull: <domain> trying as domain NAME Block Pull: [100 %] Pull complete Best, Abbas.

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[libvirt-users] cpuset not affecting real pid placement
by Andrey Korolyov 18 Oct '12

18 Oct '12

Hi, At least on 0.10.2 setting a cpuset doesn`t match a real process placement - VM still consumes all available cores. VM config: .snip. <vcpu placement='static' cpuset='0-5,12-17'>12</vcpu> .snip. for cpuset in $(find /cgroup/cpuset/libvirt/qemu/vmid/ -name cpuset.cpus) ; do grep 0-5 $cpuset ; done got: empty responce, e.g. 0-23 in my setup expected: at least bounded vcpuX threads In neighbor 'cpu' group libvirt sets cfq weights just fine, so this is clearly a bug.

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