- Users - libvirt List Archives

[libvirt-users] Java Bindings for libvirt
by Atul Gosain 24 May '11

24 May '11

Hi I looked at the java bindings for libvirt at http://libvirt.org/sources/java/ . Latest version here is 0.4.7 whereas the latest version of libvirtd is 0.9.1 . Does the java binding use latest libvirtd ? If not, can it be created easily ? Also, is there any plan to support HyperV support in future ? Thanks Atul

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[libvirt-users] Live Migration UDP implementation
by prakash hr 23 May '11

23 May '11

Hi all, For my academic project to analyse the Performance of transport protocols in Live Migration of Virtual Machines.I have configured the live migration using tcp and I succeed the live migration. Now for my further remaining project work I need to do the same thing for the UDP implemataiton.When I changed the command in virsh, (My fianl command in TCP is virsh migrate --live ubuntu21 qemu+ssh://172.16.17.23/systemtcp:// 172.16.17.23:444) to udp it is not workng. It is given that qemu embeds user mode network stack which includes tcp,dhcp,udp.etc within the wemu process. Its giving the error no API found for UDP. ---Now i want to implement the patch file for migration using UDP if possible. ---Where I should change the API in order to perform the live migration using UDP. ---Is any patch file available so that modifying that patch file will perform the Live Migration using UDP. ---If implementation using not possible with UDP please give me the details why that can not be implemented and is any proofs for that reasons are appreciated. --Is there any other transport layer protocols can be used instead of TCP during Live migration.? --How about using RUDP instead of TCP. Thanking You in advance. Thanks and Regards Prakash H.R M.Tech Student at RVCE, Bangalore +91-8904301073

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[libvirt-users] getting live migration to work..
by Jelle de Jong 23 May '11

23 May '11

Hello everybody, I am trying to get migration to work with the pacemaker VirtualDomain RA. However I hit some problems and went back to the basic. I also can't get virsh to do the migration so I am kind of stuck and can use some advice. # connection and general info and the migration tests http://paste.debian.net/117736/ # capabilities http://paste.debian.net/117745/ Thanks in advance, Kind regards, Jelle de Jong

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[libvirt-users] Improving video for Windows7 kvm guest on fc14
by Alex 23 May '11

23 May '11

Hi, I have an existing windows7 x86_64 kvm guest running on fedora14 x86_64 with a Radeon HD5700 at 1680x1050, and would like to improve the resolution of the Windows guest. How can I change the Windows driver to something more capable than "standard vga"? It currently reports there is only 16MB of RAM at available at 1440x900. How can I increase this? I've tried using virsh or editing the xml directly, but it doesn't seem to be reflected in the guest. Some of the configuration options I've read in the documentation don't work with fedora14 and virt-manager, such as the acceleration options. This is my current configuration: <video> <model type='vmvga' vram='192000' heads='1'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> </video> How can I more effectively use the video card's capabilities in the Windows guest? Thanks, Alex

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[libvirt-users] Migrate doesn't support copy-storage-all
by Abhishek Gupta 21 May '11

21 May '11

While using --copy-storage-all option while doing live migration I am getting following error : error: command 'migrate' doesn't support option --copy-storate-all I am using kvm hypervisor. Does that mean kvm doesn't support the option or libvirt doesn't provide support for the same with kvm as the hypervisor? -- Abhishek Student, IIT Delhi

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[libvirt-users] Blank console and no boot
by Francesc Guasch 19 May '11

19 May '11

Hi. I was cloning a domain and now I can't boot the original nor the clone domain. Currently when I start one of those domains I can see only a blank screen. I am not sure what went wrong cloning. I was trying to use kpart to mount the new image and change info in the filesystem like hostname, ip and so. Anyway when I start the new or old domain: # virsh start --console thedomain Domain thedomain started Connected to domain thedomain Escape character is ^] And that's all.I see nothing with libvirt graphical console, nothing in the logs but this, that I guess it's the usual startup info: LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin QEMU_AUDIO_DRV=none /usr/bin/kvm -S -M pc-0.12 -enable-kvm -m 512 -smp 1,sockets=1,cores=1,threads=1 -name .... ... This is qemu-kvm 0.12.5+noroms-0ubuntu7.1 on ubuntu server 10. Any hints so I can check what could have go wrong ? I am concerned about not being able to see what is going on. I guess there must be a way to start the domains and watch the boot process somehow. Is this possible ? thank you for you time

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[libvirt-users] Trying to re-compile libvirt package on Ubuntu Lucid
by Lars Nordin 18 May '11

18 May '11

I'm trying to rebuild Ubuntu's libvirt packages to turn on ESX support. I've downloaded the Ubuntu source package for Lucid (updated Lucid package) dget -u http://archive.ubuntu.com/ubuntu/pool/main/libv/libvirt/libvirt_0.7.5-5ubun… I try and re-compile dpkg-buildpackage -rfakeroot -b DEB_BUILD_OPTIONS="--with-esx" fakeroot debian/rules binary and I get this error: ... testing with corrupted config: log_level Skipping test (due to Ubuntu buildd FTBFS): running libvirtd with a valid config file (2 seconds) FAIL: daemon-conf PASS: define-dev-segfault ... ==================== 1 of 37 tests failed ==================== make[4]: *** [check-TESTS] Error 1 make[4]: Leaving directory `/exp/h1/staff/lnordin/libvirt-pkg/libvirt-0.7.5/tests' make[3]: *** [check-am] Error 2 make[3]: Leaving directory `/exp/h1/staff/lnordin/libvirt-pkg/libvirt-0.7.5/tests' make[2]: *** [check-recursive] Error 1 make[2]: Leaving directory `/exp/h1/staff/lnordin/libvirt-pkg/libvirt-0.7.5/tests' make[1]: *** [check-recursive] Error 1 make[1]: Leaving directory `/exp/h1/staff/lnordin/libvirt-pkg/libvirt-0.7.5' make: *** [debian/stamp-makefile-check] Error 2 Anyone gone through this exercise before and would know how to get the packages re-built?

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[libvirt-users] Howto set the option script=no for a tap device in the xml file
by Christian Spann 17 May '11

17 May '11

Hello, I am trying to run a virtual machine with qemu-kvm and libvirt as a user. In order to start the virtual machine I setup a tap device manually, add it to the bridge and activate it via ifconfig. But I cannot tell libvirt to not try to add the definded tap device to the bridge by itself. It always fails telling me it cannot add tap0 to br0. Thats the xml snippet for defining the network: <interface type='bridge'> <mac address='54:52:00:38:75:dd'/> <source bridge='br0'/> <target dev='tap0'/> <model type='virtio'/> </interface> Here I would like do define "script=no" to get an output like: -net tap,vlan=0,ifname=tap0,script=no when libvirt launches the vm. Regards, Christian -- Christian Spann - http://www-vs.informatik.uni-ulm.de/~spann

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[libvirt-users] (no subject)
by Abhishek Gupta 16 May '11

16 May '11

Hi, I am using libvirt and virsh for my application. I am trying to manage snapshots for my infrastructure. All virsh commands are working fine like snapshot-create, delete, list, revert, current. But when I try to do the same using libvirt, I get out of memory error. Here are the commands that i execute on my host in a python shell... import libvirt conn = libvirt.open("qemu:///system") dom = conn.lookupByName("vmtest") *snap = dom.snapshotCreateXML(None,0);* The error is as follows libvir: Remote error : out of memory Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/lib/python2.6/dist-packages/libvirt.py", line 669, in snapshotCreateXML if ret is None:raise libvirtError('virDomainSnapshotCreateXML() failed', dom=self) libvirt.libvirtError: out of memory

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[libvirt-users] Looking for a contact
by Dale Amon 16 May '11

16 May '11

I'm curious if there is anyone here from linode.

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