- Users - libvirt List Archives

[libvirt-users] Migrating domains across nodes
by Sagar Dixit 22 Mar '10

22 Mar '10

Hi, I am exploring the migration APIs and was curious to know if I can use them with LXC containers for live migration from one node to another. If not LXC, then can I use them with OpenVZ containers ? If yes, what would be the general steps involved. Thanks, Sagar

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[libvirt-users] need help on working with libvirt+virtualbox
by Madhusudhan sunkara 22 Mar '10

22 Mar '10

Hi all, i am trying to create virtual box using libvirt , following is xml i tried to use following xml (followed example in libvirt site . http://libvirt.org/drvvbox.html) <domain type='vbox'> <name>vboxtest</name> <os> <type>hvm</type> <boot dev='hd'/> <boot dev='cdrom'/> </os> <memory>393216</memory> <vcpu>1</vcpu> <features> <acpi/> </features> <devices> <disk type='file' device='cdrom'> <source file=''/> <target dev='hdc'/> <readonly/> </disk> <disk type='file' device='disk'> <source file='/d1/vir_box/ub.vdi'/> <target dev='hdd'/> </disk> <interface type='bridge'> <source bridge='eth0'/> <mac address='00:15:C5:ED:63:E6'/> </interface> <interface type='user'> <mac address='00:15:C5:ED:63:E6'/> <model type='Am79C973'/> </interface> <parallel type='dev'> <source path='/dev/pts/1'/> <target port='0'/> </parallel> <parallel type='dev'> <source path='/dev/pts/2'/> <target port='1'/> </parallel> <serial type="dev"> <source path="/dev/ttyS0"/> <target port="0"/> </serial> </devices> </domain> now i have few questions/doubts on the xml (i have working vdi file which is created using GUI and has ubuntu installed , i just want to start that using another machine ) as soon as i try following code i am getting segfault , i am suspecting some problem with xml input import libvirt conn=libvirt.open('vbox:///session') xmldesc = <above string> dom=conn.createLinux(xmldesc,0) Segmentation fault in my home directory/Machines xml file is created <?xml version="1.0"?> <VirtualBox xmlns="http://www.innotek.de/VirtualBox-settings" version="1.9-linux"> <Machine uuid="{9e37e287-67e3-ca78-5af0-9c38f14de49e}" name="vboxtest" OSType="Other" lastStateChange="2010-03-22T10:29:18Z" aborted="true"> <Hardware version="2"> <CPU count="1"> <HardwareVirtEx enabled="true" exclusive="true"/> <HardwareVirtExNestedPaging enabled="true"/> <HardwareVirtExVPID enabled="true"/> <PAE enabled="false"/> </CPU> <Memory RAMSize="384"/> <Boot> <Order position="1" device="Floppy"/> <Order position="2" device="DVD"/> <Order position="3" device="HardDisk"/> <Order position="4" device="None"/> </Boot> <Display VRAMSize="8" monitorCount="1" accelerate3D="false" accelerate2DVideo="false"/> <RemoteDisplay enabled="false" port="3389" authType="Null"/> <BIOS> <ACPI enabled="true"/> <IOAPIC enabled="false"/> <Logo fadeIn="true" fadeOut="true" displayTime="0"/> <BootMenu mode="MessageAndMenu"/> <TimeOffset value="0"/> <PXEDebug enabled="false"/> </BIOS> <USBController enabled="false" enabledEhci="false"/> <Network> <Adapter slot="0" enabled="false" MACAddress="080027F53A84" cable="true" speed="0" type="Am79C973"/> <Adapter slot="1" enabled="false" MACAddress="080027EE31BD" cable="true" speed="0" type="Am79C973"/> <Adapter slot="2" enabled="false" MACAddress="080027CE9DA5" cable="true" speed="0" type="Am79C973"/> <Adapter slot="3" enabled="false" MACAddress="080027D86B0D" cable="true" speed="0" type="Am79C973"/> <Adapter slot="4" enabled="false" MACAddress="080027DAA33F" cable="true" speed="0" type="Am79C973"/> <Adapter slot="5" enabled="false" MACAddress="08002734F6E6" cable="true" speed="0" type="Am79C973"/> <Adapter slot="6" enabled="false" MACAddress="08002747D785" cable="true" speed="0" type="Am79C973"/> <Adapter slot="7" enabled="false" MACAddress="080027C22A98" cable="true" speed="0" type="Am79C973"/> </Network> <UART> <Port slot="0" enabled="false" IOBase="0x3f8" IRQ="4" hostMode="Disconnected"/> <Port slot="1" enabled="false" IOBase="0x3f8" IRQ="4" hostMode="Disconnected"/> </UART> <LPT> <Port slot="0" enabled="false" IOBase="0x378" IRQ="4"/> <Port slot="1" enabled="false" IOBase="0x378" IRQ="4"/> </LPT> <AudioAdapter controller="AC97" driver="ALSA" enabled="false"/> <SharedFolders/> <Clipboard mode="Bidirectional"/> <Guest memoryBalloonSize="0" statisticsUpdateInterval="0"/> <GuestProperties/> </Hardware> <StorageControllers/> </Machine> </VirtualBox> please help me if i am doing anything wrong , how can i specify storage controller in xml file and any input on why it is aborting with segfault sorry for the long post and xml -- Madhu

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[libvirt-users] virsh domxml-to-native xen-xm request
by Mike Viau 22 Mar '10

22 Mar '10

Hello, I was looking at http://libvirt.org/drvxen.html And realized that "virsh domxml-to-native" may be used to convert the libvirt xml formatted domU configuration to native. The configuration is for stubdom-dm Xen guests. Syntax appears to be virsh domxml-to-native xen-xm new_vm1.xml > /etc/xen/new_vm1 but I get an error. error: invalid argument in unsupported config type xen-xm Can someone please post their output of the command: virsh domxml-to-native xen-xm new_vm1.xml The working libvirt XML formatted Xen DomU config (new_vm1.xml) <domain type='xen'> <name>test</name> <os> <type>hvm</type> <loader>/usr/lib/xen/boot/hvmloader</loader> <boot dev='hd'/> </os> <memory>7340032</memory> <vcpu>7</vcpu> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <features> <pae/> <acpi/> <apic/> </features> <clock offset='utc'/> <devices> <emulator>/usr/lib/xen/bin/stubdom-dm</emulator> <interface type='bridge'> <source bridge='eth0'/> <mac address='00:50:56:0f:dd:02'/> </interface> <disk type='block' device='disk'> <source dev='/dev/sys/lv0'/> <target dev='hda'/> </disk> <disk type='block' device='disk'> <source dev='/dev/sys/lv1'/> <target dev='hdb'/> </disk> <disk type='block' device='disk'> <source dev='/dev/sys/lv2'/> <target dev='hdc'/> </disk>  <graphics type='vnc' autoport='yes'/> </devices> </domain> -M _________________________________________________________________ IM on the go with Messenger on your phone http://go.microsoft.com/?linkid=9712960

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[libvirt-users] issues with Migrating a domain
by mawei 21 Mar '10

21 Mar '10

Hi everyone i've been trying to migrate a domain from hostA to hostB.But everytime i did it with "virsh --live migrate <Domain> xen+ssh://root@Destination", it failed and told me something like "Error Domain not found:xenUnifiedDomainLookupByName". The same thing happened when i tried to do the same thing with libvirt API like virDomainMigrate & virDomainMigrateToURI. i am confused about this. So can anybody can tell me why?Thanks a lot. BTW ,my OS is CentOS 5.4 and my hypervisor is xen3.1.2 which is installed with the OS.And the libvirt version is 0.7.7. THANKS A LOT AGAIN. _________________________________________________________________ 约会说不清地方？来试试微软地图最新msn互动功能！ http://ditu.live.com/?form=TL&swm=1

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[libvirt-users] Pool, iSCSI and guest start
by Nicolas Greneche 19 Mar '10

19 Mar '10

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, Former user of Xen and newbie in kvm/qemu/libvirt stuff, I give it a try on my network ;-) I need to run a VM with iSCSI target attached. I did it this way : 1) Creation of iscsi pool (equa.xml) : <pool type="iscsi"> <name>equalog</name> <source> <host name="10.10.0.1"/> <device path="iqn.2001-05.com.equallogic:0-8a0906-4992c7f05-39c000000114b8fc-vglog"/> </source> <target> <path>/dev/disk/by-path</path> </target> </pool> This pool start smoothly (when open-iscsi started), no problems. An entry is created in /dev/disk/by-path/ related to iscsi target. 2) I flagged it autostart : root@sandi:~# virsh pool-autostart equalog Pool equalog marked as autostarted root@sandi:~# virsh pool-list Name State Autostart - ----------------------------------------- equalog active yes 3) In my guest VM, I have following section : <disk type='block' device='disk'> <driver name='qemu'/> <source dev='/dev/disk/by-path/ip-10.10.0.1:3260-iscsi-iqn.2001-05.com.equallogic:0-8a0906-4992c7f05-39c000000114b8fc-vglog-lun-0'/> <target dev='vdc' bus='virtio'/> <alias name='virtio2'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/> </disk> When I start VM, iscsi target is availaible. The snag is that when I reboot the host, the pool is not automatically started (making it impossible to autostart VM relying on this iscsi volume). I verified that open-iscsi is started first. Startup script is localised in /etc/rcS.d which is prior to /etc/rc2.d (my default runlevel). Libvirtd is started in rc2.d and not mentionned in rcS.d. My questions are : - - Is this the correct way to attach iscsi volume to a guest ? - - Did I missed something to have iscsi pool autostart working at boot time ? My environement : Debian Squeeze 64 bits root@sandi:~# virsh -v 0.7.6 root@sandi:~# /usr/sbin/libvirtd --version /usr/sbin/libvirtd (libvirt) 0.7.6 Thanks for your attention, - -- Nicolas Greneche - RSSI et Sysadmin Centre de Ressources Informatiques (CRI) Doctorant au sein du projet SDS - www.sds-project.fr Mail : nicolas.greneche_(at)_univ-orleans.fr GPG : http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x5FEBD0EF Universite d'Orleans Web : http://blog.garnett.fr Batiment 3IA - 2e etage Tel : 02 38 49 25 26 6 rue Leonard de Vinci BP 6102 45061 ORLEANS Cedex 2 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkugsQsACgkQTx/Y+1/r0O90NACeMvgK2mA4EUaB+JzA7v6+xQxO jNsAmwSIh428gtZRa2jVkekyYBTpVVJK =ltP0 -----END PGP SIGNATURE-----

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[libvirt-users] virsh shutdown does not stop XP-Pro guest
by Don Morrison 17 Mar '10

17 Mar '10

I've been trying to get "virsh shutdown" to work against an XP-Pro guest with no luck so far. It seems to have no effect - I have to run "virsh destroy" instead which is less than desirable. I have enabled <acpi> in the domain xml so I think the problem is on the guest side. A couple of questions: 1) How can I confirm whether the XP guest has ACPI enabled. I actually think it doesn't because when I look at the "ACPI Multiprocessor PC" device driver name, it lists "hal.dll". This is NOT ACPI enabled according to this site: http://technet.microsoft.com/en-us/library/bb457123.aspx. Am I reading this correctly? 2) I tried to enable ACPI at install time by bringing up virt-viewer and pressing F5 on the blue install screen as instructed here: http://www.computing.net/answers/windows-xp/enable-acpi-in-xp-without-reins… But F5 didn't have any effect. Has anybody else been able to get this to work? I'm running KVM 0.12.2-0.4.1 and Libvirt 0.7.6-1.2.3 Thanks. Don Morrison

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[libvirt-users] migrate with libirt 0.7.0
by Daniel Bidwell 16 Mar '10

16 Mar '10

Using ubuntu 9.10 and libvir 0.7.0, when I do a migrate a domain from machine A to B, the migration "completes" but remains in a frozen state until I do a "suspend/resume" on it on B. Then it runs fully normally. What do I do to skip the suspend/resume steps? -- Daniel R. Bidwell | bidwell(a)andrews.edu Andrews University | Information Technology Services If two always agree, one of them is unnecessary "Friends don't let friends do DOS" "In theory, theory and practice are the same. In practice, however, they are not."

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[libvirt-users] internal error cannot parse QEMU version number
by jeremy avnet 16 Mar '10

16 Mar '10

I've seen this error a couple of times over the past month, but it's starting to happen more regularly now (perhaps since VM usage is increasing). The last few times I've seen it when trying to start a VM (virsh start domain): $ virsh start goat Connecting to uri: qemu:///system error: Failed to start domain goat error: internal error cannot parse QEMU version number in ' PC emulator version 0.11.0 (qemu-kvm-0.11.0), Copyright (c) 2003-2008 Fabrice Bellard' Running libvirt version 0.7.0-1ubuntu13.1 under Ubuntu 9.10 amd64. $ kvm --version QEMU PC emulator version 0.11.0 (qemu-kvm-0.11.0), Copyright (c) 2003-2008 Fabrice Bellard I saw this message, but it's for an older version: http://osdir.com/ml/libvir-list/2009-05/msg00192.html Any ideas on how to prevent this error? Thank you. .:. jeremy

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[libvirt-users] behaviour of "virsh shutdown domainName"
by Jorge Somavilla 16 Mar '10

16 Mar '10

Hi all, I am experiencing some problems with different versions of libvirt (0.7.5 and 0.7.7), with a kvm (WinXP), host running Ubuntu 9.10, and i would like to ask you two questions: - In virsh, after running the command "shutdown domainName", what should be the final state of the domain, if the shutdown finishes correctly: "shutoff", "no-state", "inactive", or the domain shouldn't show in "list --all" (full clean-up)? - After the command "shutdown domainName", should i be able to run the command "start domainName", without first defining the domain? (i.e.: does shutdown "undefine" the domain?). In my experience 0.7.5 used to leave the shut down domains as defined, so i could run "start" right after. Testing in other hosts this doesn't work always like that, and even if the domain apparently shuts down correctly, the domain sometimes shows in "list --all", and sometimes it doesn't. With libvirt 0.7.7 the domain never shows in "list --all" after a successful shutdown, which makes me think it was a bug and it has been corrected. Am i missing anything? Any help would be much appreciated, thanks in advance. Jorge Somavilla.

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[libvirt-users] Duplicate USB vendor,product specification
by Don Morrison 15 Mar '10

15 Mar '10

I studying how to attach USB devices to a KVM guest virtual machine using libvirt. Using the "vendor" and "product" to specify the source device seems like a good option since the "bus" and "device" values can change as a device is removed and re-inserted. The question I have is what should I expect to happen if I plug in two identical USB devices - so they have the same vendor/product information? There is nothing in the documentation on libvirt.org to address this case. Thanks. Don Morrison

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