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[libvirt-users] How to connect to a remote VM ESXi server with Python language?
by ice 30 Dec '11

30 Dec '11

Hi, Dear Mr/Mrs. I have trouble in connecting to a VM ESXi server with python. I am a developer using libvirt to control remote VM ESXi with python language. But I am not able to connect to a remote VM ESXi server. I make my try to solve this issue: 1: I use the function libvirt.Open() to open the remote VM ESXi Server, but I don't know how to input the password. It seems that there is no parameter for password input. 2: I use "virsh connect ---". It is succeed when it is executed on locale machine manual, but failed when I invoke this command in python environment. I use "subprocess.Popen" to execute the command "virsh", but this function would be hung on after command "communicate" executed. -bash-4.1# python Python 2.6.6 (r266:84292, May 20 2011, 16:42:11) [GCC 4.4.5 20110214 (Red Hat 4.4.5-6)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> from subprocess import Popen,PIPE,STDOUT >>> command=['virsh', '-c', 'esx://192.168.58.144/?no_verify=1','list', '--all'] >>> p=Popen(command, stdin=PIPE,stdout=PIPE, stderr=STDOUT) >>> output = p.communicate()[0] How to fix it? Thanks for help! Best regards!

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[libvirt-users] redirect ports from user network
by Алексей Беляев 29 Dec '11

29 Dec '11

Hello. I would like to redirect some ports from user network to host system. In console i can do it: /usr/libexec/qemu-kvm -drive file=/home/libvirt/qemu-fedora.img -vnc 10.200.1.1:1 -net user -redir tcp:22000::49999 -redir tcp:22001::22 How can i do it with libvirt? I make users network in XML config VM: <interface type='user'> <mac address='52:54:00:48:3f:f5'/> <alias name='net0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> But i don't know - how to make redirecting ports and i cann't fint it in documentation. Is it possible? -- Thanks for your feedback. Best regards, Alex

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[libvirt-users] cannot find -lportablexdr
by Juliano Souza 28 Dec '11

28 Dec '11

When I try to compile libvirt: checking for xdrmem_create in -lportablexdr... no checking for library containing xdrmem_create... no configure: error: Cannot find a XDR library Where have that libxdr source? Thanks. -- Juliano Souza

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[libvirt-users] Libvirt java from Windows
by Sergey Sudakovich (ssudakov) 24 Dec '11

24 Dec '11

I am writing a java based client that would be executed from windows that will use libvirt. 1. Got libvirt-java ( http://libvirt.org/sources/java/libvirt-java-0.4.7.tar.gz) and build a jar out it (ant with no params) 2. Then, according to http://libvirt.org/windows.html, built a dll using the "MSYS build script" 3. Got 2 files libvirt-0.dll and libqemu-0.dll When I run the sample example(from Eclipse) from http://libvirt.org/java.html I get the following error: Exception in thread "main" java.lang.UnsatisfiedLinkError: Unable to load library 'virt': %1 is not a valid Win32 application. at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:169) at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:242) at com.sun.jna.Library$Handler.<init>(Library.java:140) at com.sun.jna.Native.loadLibrary(Native.java:368) at com.sun.jna.Native.loadLibrary(Native.java:353) at org.libvirt.jna.Libvirt.<clinit>(Unknown Source) at org.libvirt.Connect.<clinit>(Unknown Source) at Main.main(Main.java:26) Also tried instead of step 2 cross compile in Fedora - same error message when I use new dll's. Does anybody have any idea where do I start fixing the issue?? -- Thank you, Sergey Sudakovich

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[libvirt-users] for a guest accessing host "full disk", how to prevent host vgscan
by David Mansfield 23 Dec '11

23 Dec '11

Hi All. I have a dell system with a H700 raid. Within the hardware RAID config I've created a "virtual disk" which I have assigned to one of my guests. On the host the device is "/dev/sdb", on the guest it's "/dev/vdb". This works fine. Within the guest, we have created lvm PV on /dev/vdb (using the whole disk - no partitions) and created a volume group. The guest's hostname is "argo" and the vg is called "vg_argo_bkup". When I reboot the host, it does a vgscan and finds the volume group and activates it in the _host_, which I need to prevent (I think??). I have successfully done this by filtering "/dev/sdb" in /etc/lvm/lvm.conf (which does NOT work as advertised BTW), but referencing the extremely volatile SCSI "sd*" names seems a terrible way to do this. If I fiddle around in the HW raid config, the /dev/sd? may change. I plan on creating about 10 more VM's spread over a number of machines over the next weeks with a very similar setup, and the admin overhead seems like it'll be onerous and error-prone. I'd love to be able to filter the volume groups by VG name instead of pv device node. The host's hostname is "narnia" and I'd love to say, 'vgscan --include-regex "vg_narnia.*"' or something similar, if you get my drift. Does anyone have a best practice for this? I'm sure iSCSI enthusiasts must have the exact same issue all the time. Oh... I'm using centos 6.2 on host and guest, libvirt-0.9.4-23.el6_2.1.x86_64, although it hardly seems a libvirt issue at all, it seems to be a lvm host issue mainly. Thanks, David Mansfield

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Re: [libvirt-users] [virt-tools-list] error creating NFS storage pool
by Cole Robinson 22 Dec '11

22 Dec '11

On 12/16/2011 05:32 PM, Grant Siebrecht wrote: > Virtual Machine Manager 0.9.0 > OS = Ubuntu 11.10 > I've tried changing permissions on my_nfs_server to 777 with still no luck. > > > > Error creating pool: Could not start storage pool: cannot open volume > '/var/lib/libvirt/images/my_nfs_server/.$EXTEND': Permission denied > > Traceback (most recent call last): > File "/usr/share/virt-manager/virtManager/asyncjob.py", line 44, in cb_wrapper > callback(asyncjob, *args, **kwargs) > File "/usr/share/virt-manager/virtManager/createpool.py", line 480, in > _async_pool_create > poolobj = self._pool.install(create=True, meter=meter, build=build) > File "/usr/lib/pymodules/python2.7/virtinst/Storage.py", line 489, in install > raise RuntimeError(errmsg) > RuntimeError: Could not start storage pool: cannot open volume > '/var/lib/libvirt/images/my_nfs_server/.$EXTEND': Permission denied > moving to libvirt-users What is the .$EXTEND file? Is it a socket or something strange like that? - Cole

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[libvirt-users] Error when creating domain with virsh+qemu
by Stefano Ghio 22 Dec '11

22 Dec '11

Cheers, I'm working on Ubuntu server 11.10 32 bit with libvirt 0.9.2 and qemu-kvm 0.14.1. I have a user oneadmin:oneadmin who also belongs to kvm and libvirtd groups. I have set qemu.conf and libvirtd.conf with user/group oneadmin. I have disk.0 and deployment.0 files owned by oneadmin. My system does not support hardware virtualization so I don't have /dev/kvm. I'm able to start VM with qemu anyways but when issuing the command: virsh -c qemu:///system create deployment.0 I get: error: Failed to create domain from deployment.0 error: internal error process exited while connecting to monitor: 13:00:52.354:1291: info: libvirt version: 0.9.2 13:00:52.371: 1291: debug : virCommandHook:1826 : Waiting on parent for handshake complete on 23 13:00:52.371: 1291: debug : virCommandHook:1842 : Hook is done 0 open /dev/kvm: No such file or directory failed to initialize KVM: Operation not permitted "error while connecting to monitor" looks to me as something permission-related but I tried a lot of combinations between the qemu and libvirt conf files and nothing worked (yes, I always restarted the system after every change). If I start the same image with sudo /usr/bin/qemu-system-i386 -hda disk.img -boot d -m 384 it works Any help? Thanks -- Dr. Stefano Ghio - ENG Engineering Italy Website: http://groglogs.blogspot.com/ *If you received this message but you are not its recipient, please ignore it and warn me, thank you.*

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[libvirt-users] Issue with IPMI (and KVM) on RHEL 6
by Jawahar Tadipatri 21 Dec '11

21 Dec '11

Hi folks, We experiencing some difficulties in getting IPMI to work on RHEL 6 running as Guest using KVM. We have verified that IPMI works on RHEL 6 if installed on bare metal. Is this a known issue? Can anyone please suggest a fix or work-around for this problem? *RHEL 6 as guest os with kvm on RHEL 6 as host os -- doesn't work* RHEL 6 (client) on bare metal (i.e., the above mentioned host os)-- works Below is the the output of the command (just an indication that it failed) and relevant part of dmesg . # service ipmi start Starting ipmi drivers: [FAILED] # dmesg | tail -12 ipmi message handler version 39.2 IPMI System Interface driver. ipmi_si: Adding default-specified kcs state machine ipmi_si: Trying default-specified kcs state machine at i/o address 0xca2, slave address 0x0, irq 0 ipmi_si: Interface detection failed ipmi_si: Adding default-specified smic state machine ipmi_si: Trying default-specified smic state machine at i/o address 0xca9, slave address 0x0, irq 0 ipmi_si: Interface detection failed ipmi_si: Adding default-specified bt state machine ipmi_si: Trying default-specified bt state machine at i/o address 0xe4, slave address 0x0, irq 0 ipmi_si: Interface detection failed ipmi_si: Unable to find any System Interface(s) Please revert if any more information is needed. Thanks and Regards, Jawahar

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[libvirt-users] Virt-Manager + IDE Controller
by Paul K. Alabi 19 Dec '11

19 Dec '11

Hi , i m currently running CentOS 5.4 on a Dell C2100 . I have virt-manger , livirt installed but i can't get my VMs to mount more than 4 IDE disk ( i have 8) . I would like to know how to mount ALL 8 Disk on my VM . P ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.

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[libvirt-users] Using libvirt networking properly.
by Andrew Spiers 19 Dec '11

19 Dec '11

Hi, I'm interested in a setup in which one guest receives all its networking services (routed IPv4, dhcp, tftp, dns) from another, which is connected via a routing through the hypervisor. I think this is a lot like Guest C and Guest B in the diagram at http://libvirt.org/archnetwork.html. I have experimented with setting the network between Guest B and the hypervisor as a routed network, and the network between Guest B and Guest C as an isolated network. The problems I am having is that I am not sure how to set up a persistent static route to Guest C via Guest B, (I created a file with the route called route-virbr3 in /etc/sysconfig/network-scripts on the hypervisor, but it doesn't seem to do anything), and the changes I need to make to allow traffic with Guest C's source IP to come from Guest B's interface with the hypervisor seems to get overwritten or superceded by additional rules that are created when I start my machine.) I can see something about a qemu-ifup script mentioned at http://www.linux-kvm.org/page/Networking. Should I create something like that and put some sort of `ip route add` command in it? When should that script be called? Is there a way to specify the necessary firewall and routing rules in the xml network configuration? I am working with a Fedora 16 hypervisor and Guest B is a Centos 6 machine. I'd like to use all sorts of different distributions where Guest C is. Regards, Andrew.

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