November 2012 - Users - libvirt List Archives

[libvirt-users] help filtering spam
by Joe Linoff 06 Nov '12

06 Nov '12

Hi Folks: I am now receiving spam email every few minutes as result of signing up for this mailing list and it is starting to become a challenge. Has anyone had any success filtering it? Regards, Joe

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[libvirt-users] No driver found during virt-install / kickstart
by Joe Linoff 06 Nov '12

06 Nov '12

Hi Folks: I am getting a "No driver found" dialogue when I try to build a guest using virt-install using a kickstart file. I am stuck. I am not sure how to fix or even debug this problem. Can anyone suggest a way forward? Here are the commands that I am using: $ # ================================================================ $ # Create the volume $ # ================================================================ virsh vol-create default /tools/vm/guests/guest1-vol.xml $ # ================================================================ $ # Create a mount for the virt-install --location option. $ # ================================================================ mkdir /opt/mnt mount -o loop,ro /tools/iso/CentOS-6.3-x86_64-bin-DVD1.iso /opt/mnt $ # ================================================================ $ # Create the kickstart file (used system-config-kickstart). $ # ================================================================ $ cat /export/tools/vm/guests/guest1-ks.cfg #platform=x86, AMD64, or Intel EM64T #version=DEVEL # Firewall configuration firewall --enabled --http --ssh # Install OS instead of upgrade install # Use CDROM installation media cdrom # Root password rootpw --iscrypted $1$DAzH1SN3$6yzxoq6oRrXNw.qMkJU0H1 # System authorization information auth --useshadow --passalgo=sha512 # Use graphical install graphical firstboot --disable # System keyboard keyboard us # System language lang en_US # SELinux configuration selinux --enforcing # Installation logging level logging --level=debug # System timezone timezone America/Los_Angeles # Network information network --bootproto=static --device=eth0 --gateway=192.168.2.1 --ip=192.168.2.68 --nameserver=192.168.2.71 --netmask=255.255.255.0 --onboot=on # System bootloader configuration bootloader --location=mbr # Clear the Master Boot Record zerombr # Partition clearing information clearpart --all %packages @base @client-mgmt-tools @compat-libraries @console-internet @emacs @hardware-monitoring @network-file-system-client @network-tools @performance @postgresql @security-tools @system-admin-tools @virtualization-client %end EOF $ # ================================================================ $ # Run virt-install $ # ================================================================ virt-install \ --accelerate \ --location "/opt/mnt" \ --disk device=disk,path="/var/lib/libvirt/images/guest1.img" \ --graphics vnc \ --name "guest1" \ --os-type linux \ --os-variant rhel6 \ --ram 2048 \ --vcpus 2,maxvcpus=2 \ -v \ -w bridge:br0 \ -x 'ks=nfs:192.168.2.140:/export/tools/vm/guests/guest1-ks.cfg ksdevice=eth0 ip=192.168.2.82 netmask=255.255.255.0 dns=192.168.2.71,8.8.8.8 gateway=192.168.2.1' Regards, Joe

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[libvirt-users] Failed to bind socket to '/var/run/libvirt/libvirt-sock': Permission denied
by 何鑫 06 Nov '12

06 Nov '12

Hi all, When I start self-built libvirtd by "libvirtd -d -l -f libvirtd.conf", it shows that error : virNetSocketNewListenUNIX:346 : Failed to bind socket to '/var/run/libvirt/libvirt-sock': Permission denied I have removed some requested comments in libvirtd.conf. The key settings are shown as below: listen_tcp = 1 tcp_port = "16509" listen_addr = "0.0.0.0" unix_sock_group = "root" unix_sock_rw_perms = "0770" unix_sock_ro_perms = "0777" unix_sock_dir = "/var/run/libvirt" Is there any thing wrong? Need I start libvirtd by root? Thanks a lot! Best Regards!Corey

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[libvirt-users] can not create "qcow2" format volume by Java library.
by zhijun liu 06 Nov '12

06 Nov '12

hi，all, when I use Java library to create volume ,specified format "qcow2"，but when I check it use qemu-img info ,it show format is "raw".。 I think it a bug,can you fix it .. thanks very much. the java library version：0.4.8 libvirt version：0.9.8

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[libvirt-users] re-create disk image file
by Joe Linoff 06 Nov '12

06 Nov '12

Hi Everybody: I am curious about how to re-create a disk image file from a running guest when the original disk image file is accidentally deleted. This came up recently during a test scenario but I couldn't figure out how to do it. Thanks, Joe

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[libvirt-users] is this mailing list active? i am seeing low activity and am receiving spam
by Joe Linoff 05 Nov '12

05 Nov '12

Hi Folks: Is this mailing list active? It seems to have pretty low activity and I have received several spam messages since signing up. Regards, Joe

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[libvirt-users] CPU Mode= Host passthrough
by Michael Beham 05 Nov '12

05 Nov '12

Hi, I´m doing some research on Nested Virtualization with KVM and Xen. My cpu on bare-metal system is a Opteron_G4 --> (AMD Opteron 4280). qemu-version 1.0; libvirt 0.9.12 For nesting KVM in KVM I´m adding the <cpu mode='host-passthrough'/> command to the XML-File of the VM on Layer 0. So I´m able to install KVM in KVM and create nested guests at Layer 2. L2 --> Nested VM L1 --> KVM / XEN L0 --> KVM If i try the same with installing Xen in the VM on Layer 1 Xen don´t boot and I get following error: Panic on CPU 0: GENERAL PROTECTION FAULT [error_code=0000] If I remove <cpu mode='host-passthrough'/> command from the VM´s XML Xen boot is successful and Nesting Xen in KVM works! May this problem depends on the following problem --> https://bugzilla.redhat.com/show_bug.cgi?id=804224

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[libvirt-users] virsh vol-create-as failing on NFS automount for chmod (dynamic_ownership = 0)
by Joe Linoff 05 Nov '12

05 Nov '12

Hi Everyone: I am trying to create a volume using the vol-create-as command but it fails with an "Operation not permitted" error. It appears to be caused by an attempt to run chown on an NFS mounted file system but I have set dynamic_ownership to 0 in /etc/qemu.conf. Is it possible to disable the chown operation? If not, is there a guide that describes how to create storage pools on NFS filers? I have read http://libvirt.org/storage.html but there was no discussion of to work around this problem. Any help would be greatly appreciated. Here is the command and error message: $ virsh vol-create-as default webtst 10G error: Failed to create vol webtst error: cannot create path '/var/lib/libvirt/images/webtst': Operation not permitted The /var/lib/libvirt/images is linked to a common filer: /shared/vm/images. The permissions on the directory are 0777. When I looked at tail /var/log/libvirt/libvirtd.log it showed that the problem was occurring because a chown command: 2012-11-05 02:55:44.841+0000: 26384: info : libvirt version: 0.9.10, package: 21.el6_3.5 (CentOS BuildSystem <http://bugs.centos.org>, 2012-10-11-13:57:12, c6b9.bsys.dev.centos.org) 2012-11-05 02:55:44.841+0000: 26384: error : virFileOpenForceOwnerMode:796 : cannot chown '/var/lib/libvirt/images/webtst' to (0, 0): Operation not permitted 2012-11-05 02:55:44.841+0000: 26384: error : virStorageBackendCreateRaw:401 : cannot create path '/var/lib/libvirt/images/webtst': Operation not permitted Regards, Joe

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[libvirt-users] error: Unable to add port vnet1 to OVS bridge ovsbr: Operation not permitted
by Radhika Niranjan 03 Nov '12

03 Nov '12

Hi, > > I am using libvirt version 0.9.13 with Ubuntu 12.10 > > When I try to start a VM with an openvswitch bridge interface I get the > error: > > error: Failed to start domain kvm113-2 > error: Unable to add port vnet1 to OVS bridge ovsbr: Operation not > permitted > > > Here is my bridge configuration: > <interface type='bridge'> > <mac address='52:54:00:c7:db:d2'/> > <source bridge='ovsbr'/> > <virtualport type='openvswitch'> > <parameters interfaceid='40e21558-217c-d8ef-c9a9-5275fa4b4a46'/> > </virtualport> > <model type='virtio'/> > <address type='pci' domain='0x0000' bus='0x00' slot='0x05' > function='0x0'/> > </interface> > > > This configuration previously worked fine. > > Request your help and insights. > > WIth best regards > Radhika >

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[libvirt-users] hotplug
by Douglas Russell 03 Nov '12

03 Nov '12

Another separate thread for a slightly separate issue. For some reason, hotplugging disks does not work for me. I built my guest with ubuntu's vmbuilder. It's Precise, virtual. I have acpiphp in my /etc/modules file: $ lsmod Module Size Used by psmouse 97443 0 serio_raw 13211 0 virtio_balloon 13108 0 acpiphp 24231 0 floppy 70365 0 hotplug_pci seems to be compiled into the kernel: $ grep HOTPLUG_PCI /boot/config-3.2.0-32-virtual CONFIG_HOTPLUG_PCI_PCIE=y CONFIG_HOTPLUG_PCI=y CONFIG_HOTPLUG_PCI_FAKE=m CONFIG_HOTPLUG_PCI_ACPI=m CONFIG_HOTPLUG_PCI_ACPI_IBM=m CONFIG_HOTPLUG_PCI_CPCI=y CONFIG_HOTPLUG_PCI_CPCI_ZT5550=m CONFIG_HOTPLUG_PCI_CPCI_GENERIC=m CONFIG_HOTPLUG_PCI_SHPC=m But when I attach a disk, absolutely nothing happens in the guest. No messages in the logs, no change to /proc/partitions, no new device nodes. When I reboot, the disk appears. Any ideas? Thanks, Douglas

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