October 2013 - Users - libvirt List Archives

[libvirt-users] some problem with snapshot by libvirt
by xingxing gao 22 Nov '14

22 Nov '14

Hi,all,i am using libvirt to manage my vm,in these days i am testing the libvirt snapshot ,but meet some problem: the snapshot was created from this command: snapshot-create-as win7 --disk-only --diskspec vda,snapshot=external --diskspec hda,snapshot=no but when i tried to revert from the snapshot which created from the above command ,i got error below: virsh # snapshot-revert win7 1338041515 --force error: unsupported configuration: revert to external disk snapshot not supported yet version: virsh # version Compiled against library: libvir 0.9.4 Using library: libvir 0.9.4 Using API: QEMU 0.9.4 Running hypervisor: QEMU 1.0.93

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[libvirt-users] Using certtool to generate certificates for ESXi
by Shiva Bhanujan 05 Nov '13

05 Nov '13

Hello, I'm using certtool to generate the server certificates for ESXi - http://libvirt.org/remote.html#Remote_TLS_CA. I just copy the server certificate and key as /etc/vmware/ssl/rui.crt and /etc/vmware/ssl/rui.key. And then use virsh to connect from a CentOS 6.4 VM running on it - "virsh -c esx://<esx IP>. I get the following error - error: internal error curl_easy_perform() returned an error: Peer certificate cannot be authenticated with known CA certificates (60) : Peer certificate cannot be authenticated with known CA certificates error: failed to connect to the hypervisor is there something basic that I'm missing? Regards, Shiva

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Re: [libvirt-users] [Qemu-devel] About VM fork in QEMU
by Xinyang Ge 02 Nov '13

02 Nov '13

>>> External snapshots (via the blockdev-snapshot-sync QMP command) can be >>> taken in a matter of milliseconds if you only care about disk state. >>> Furthermore, if you want to take a snapshot of both memory and disk >>> state, such that the clone can be resumed from the same time, you can do >>> that with a guest downtime that only lasts as long as the >>> blockdev-snapshot-sync, by first doing a migrate to file then doing the >>> disk snapshot when the VM pauses at the end of migration. Resuming the >>> original guest is fast; resuming from the migration file is a bit >>> longer, but it is still the fastest way possible to resume from a >>> memory+disk snapshot. If you need anything faster, then yes, you would >>> have to write patches to qemu to attempt cloning via fork() that makes >>> sure to modify the active disk in use by the fork child so as not to >>> interfere with the fork parent. >> >> I think migrating memory to file then doing external disk snapshot is >> exactly what we want. Since we are using libvirt to manage different >> VMs, could you give us some specific guides (or references) that how >> we could migrate memory state to file using virsh interfaces and do >> external snapshots? > > virsh snapshot-create-as $dom $name --live --memspec /path/to/memoryfile I have tried this command on libvirt v1.1.3 and it returns "error: invalid argument: qemuDomainSnapshotCreateXML: unsupported flags (0x100)". Looks like --live is not supported yet. Could you let us know which version we should of libvirt we should use in order to use this feature? Thanks, Xinyang -- Xinyang GE Department of Computer Science & Engineering The Pennsylvania State University Homepage: http://www.cse.psu.edu/~xxg113/

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[libvirt-users] libvirt_lxc causes cpu 100% usage
by jj zhong 01 Nov '13

01 Nov '13

libvirt_lxc causes cpu 100% usage? libvirt version : 1.1.1 I don't know what happend, any help would be appreciated. thx top - 07:39:44 up 1 day, 2:13, 2 users, load average: 4.72, 4.59, 4.51 Tasks: 243 total, 4 running, 239 sleeping, 0 stopped, 0 zombie %Cpu0 : 33.1 us, 1.3 sy, 0.0 ni, 64.6 id, 0.7 wa, 0.0 hi, 0.3 si, 0.0 st %Cpu1 : 41.1 us, 3.0 sy, 0.0 ni, 55.3 id, 0.7 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu2 : 18.0 us, 2.0 sy, 0.0 ni, 79.7 id, 0.0 wa, 0.0 hi, 0.3 si, 0.0 st %Cpu3 : 94.8 us, 5.2 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu4 : 55.7 us, 7.5 sy, 0.0 ni, 36.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu5 : 66.1 us, 4.3 sy, 0.0 ni, 29.6 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu6 : 16.8 us, 1.0 sy, 0.0 ni, 82.2 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu7 : 7.2 us, 0.7 sy, 0.0 ni, 92.1 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st KiB Mem: 1972112 total, 1894912 used, 77200 free, 236576 buffers KiB Swap: 10485744 total, 0 used, 10485744 free, 574544 cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 15750 root 20 0 10448 2080 1216 R 100.3 0.1 1322:38 libvirt_lxc 27517 root 20 0 10448 2032 1200 R 99.3 0.1 1273:44 libvirt_lxc 25250 root 20 0 10480 2048 1200 R 99.0 0.1 1277:31 libvirt_lxc ....

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[libvirt-users] upstart script for virtlockd
by NEVEU Stephane 01 Nov '13

01 Nov '13

Hi all, Trying to test libvirt 1.1.3 with virtlockd locking my qcow2 images on a NFS storage between two kvm hosts. ./configure ... --with-init-script=upstart Libvirtd upstart script is actually well generated but I can't see nothing about virtlockd... or am I blind ? :) Nevertheless, running virtlockd -d && service libvirtd restart works fine. Am I wrong thinking that editing qemu-lockd.conf with my needs and qemu.conf with lock_manager="lockd" was enough ? Thank you for your help.

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[libvirt-users] libvirt_lxc: SELinux MCS
by Matteo Piccinini 01 Nov '13

01 Nov '13

Hello list, my name is Matteo, i'm new on that list. I'm working on a multitenancy platform with linux containers through libvirt on a production system with Red Hat 6.4. Every container run a separate instance of OpenSSH and Apache HTTPd and I need to give root privileges to the developers and I try to configure SELinux using svirt and MCS. I try the secmodel type dynamic and static in the xml file but it didn't work, I received the following error: error : virSecurityLabelDefParseXML:3228 : XML error: security label is missing error : virNetSocketNewConnectUNIX:566 : Failed to connect socket to '/var/run/libvirt/lxc/cntr1.sock': Connection refused I configure the followings secmodel definition and used chcon on the rootfs directory (created with yum) with "system_u:object_r:svirt_lxc_file_t:s0:c30,c50" label: <seclabel type='static' model='selinux' relabel='no'> <label>system_u:system_r:svirt_lxc_net_t:s0:c30,c50</label> </seclabel> or: <seclabel type='dynamic' model='selinux' relabel='yes'> <label>system_u:system_r:svirt_lxc_net_t:s0:c30,c50</label> </seclabel> I try to compile the last version from the master branch of git the result was always the same, the error was related to the SELinux driver not enabled. The output from "virsh -c lxc:/// capabilities" doesn't show the secmodel and doi tag like the qemu/kvm have for the lxc driver the selinux driver. How can I enable the SELinux driver for libvirt lxc in Red Hat 6.4? SELinux is in enforcing mode. Thanks in advance, Matteo

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[libvirt-users] libvirt-lxc driver on armv7l
by Jan Olszak 01 Nov '13

01 Nov '13

Hi there, I'm interested in using libvirt-lxc on armv7l architecture and I have a hard time building libvirt. 1. Are there any prebuild rpms for ARM? 2. I have many dependency issues during build: error: *** Error Summary *** === the following packages failed to build due to missing build dependencies === libvirt: nothing provides hal-devel nothing provides libnl-devel nothing provides libselinux-devel nothing provides radvd nothing provides ebtables nothing provides cyrus-sasl-devel nothing provides /usr/bin/qemu-img nothing provides lvm2 nothing provides iscsi-initiator-utils nothing provides parted-devel nothing provides device-mapper-devel nothing provides libssh2-devel >= 1.3.0 nothing provides libwsman-devel >= 2.2.3 nothing provides nfs-utils nothing provides scrub Where do I define the flags that discard some of the libraries (for example "--without-hal")? Thanks! Jan

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[libvirt-users] libvirt-lxc without libvirt
by Jan Olszak 01 Nov '13

01 Nov '13

Hi there! 1. Is it possible to build libvirt-lxc driver without building libvirt? How do I do it? 2. Do I understand it correctly, that I can use libvirt-lxc as a substitute of lxc? Thanks, Jan

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[libvirt-users] Fwd: libvirt unsupport rbd storage pool? "missing backend for pool type 8"
by 卢惠勇 31 Oct '13

31 Oct '13

I use "virsh pool-define rbd.xml" to create a rbd storage pool,but get this error virsh pool-define /tmp/rbd.xml error: Failed to define pool from /tmp/rbd.xml error: internal error: missing backend for pool type 8 rbd.xml <pool type="rbd"> <name>cloudstack</name> <source> <name>cloudstack</name> <host name='10.20.197.22' port='6789'/> </source> </pool> this is my system information: centos6.4 2.6.32-358.14.2.el6.x86_64 libvirt-1.1.1-1.el6.x86_64 qemu-kvm-0.12.1.2-2.355.el6.2.cuttlefish.x86_64 (download from http://ceph.com/packages/qemu-kvm/centos/x86_64/ ) qemu-img-0.12.1.2-2.355.el6.2.cuttlefish.x86_64 -- ------------------------------ 金山网络运维部-卢惠勇分机:2477 手机:15018838589 qq:31302409

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[libvirt-users] Upgraded to F18: now machines won't start
by Sean Darcy 31 Oct '13

31 Oct '13

We've gone back to using an older machine that used to run libvirt just fine. Updated to F18, libvirt-1.1.0-1.fc18.x86_64. VirtualBox works ok. Now I can't start any image. For one machine i get: .............. File "/usr/lib64/python2.7/site-packages/libvirt.py", line 698, in create if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self) libvirtError: internal error Cannot find suitable CPU model for given data that's whether I use what we used to use "Phenom" or the selection from allowing virt-manager to choose "Opteron G3". For another machine we get: libvirtError: internal error Process exited while reading console log output: char device redirected to /dev/pts/37 (label charserial0) failed to initialize KVM: Device or resource busy Doing some debugging, I found: 1. On boot the kvm_amd and kvm kernel modules won't/don't load. Nothing in dmesg. Modprobe does load them. lsmod | grep kvm kvm_amd 59982 0 kvm 429349 1 kvm_amd I still can't make anything work with the modules loaded. 2. When I start libvirtd, I get: Oct 30 14:56:29 sixcore systemd[1]: Starting Virtualization daemon... Oct 30 14:56:29 sixcore systemd[1]: Started Virtualization daemon. ............ Oct 30 14:56:31 sixcore kernel: [ 837.705913] kvm: enabling virtualization on CPU5 failed Oct 30 14:56:31 sixcore kernel: [ 837.705920] kvm: enabling virtualization on CPU4 failed Oct 30 14:56:31 sixcore kernel: [ 837.705928] kvm: enabling virtualization on CPU1 failed Oct 30 14:56:31 sixcore kernel: [ 837.705934] kvm: enabling virtualization on CPU2 failed Oct 30 14:56:31 sixcore kernel: [ 837.705946] kvm: enabling virtualization on CPU3 failed Oct 30 14:56:31 sixcore kernel: [ 837.745267] kvm: enabling virtualization on CPU0 failed I looked at the wiki on how to debug, and I seem to pass all the tests. virsh capabilities | grep kvm <domain type='kvm'> <emulator>/usr/bin/qemu-kvm</emulator> <domain type='kvm'> <emulator>/usr/bin/qemu-kvm</emulator> virsh dumpxml 2008R2 | grep kvm <domain type='kvm'> <emulator>/usr/bin/qemu-kvm</emulator> Am I right that some of the entries in the xml file have now changed? Is there a guide to updating them from the prior entries? And, if I try to create a new machine, virt-install just hangs: virt-install --prompt What is the name of your virtual machine? New-2008R2 How much RAM should be allocated (in megabytes)? 1200 What would you like to use as the disk (file path)? /opt/storage/virt/windows/images/2008R2.img ls -l /opt/storage/virt/windows/images/2008R2.img -rw-------. 1 root root 23571726336 Dec 8 2012 /opt/storage/virt/windows/images/2008R2.img I changed the permissions to 666. still hung. Any help appreciated. Sean

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[libvirt-users] virsh esx return "error: internal error: Could not find Datacenter"
by Andrea Buzzi (abuzzi) 31 Oct '13

31 Oct '13

Hello, I’m running virsh v1.1.3 compiled on a ubuntu system with the "--with-esx=yes” support. root@kvm-189:/home/cisco# virsh --version 1.1.3 I also have a vcenter 5.5 environment that has following structure (couple of hosts at datacenter level, others part of cluster group): MIC-VC-ADMIN MIC-DC-ADMIN 10.58.6.110 10.58.6.113 MIC-CL-ADMIN 10.58.6.109 10.58.6.118 10.58.6.126 I can succesfully connect to ESXi host 10.58.6.110: root@kvm-189:/home/cisco# virsh -c esx://10.58.6.110?no_verify=1 list --all Enter username for 10.58.6.110 [root]: Enter root's password for 10.58.6.110: Id Name State ---------------------------------------------------- 250 ssi-vepc1 running - SSI-Template shut off root@kvm-189:/home/cisco# However if I try to connect to vcenter, I get the following: root@kvm-189:/home/cisco# virsh -c esx://10.58.6.110?no_verify=1\&vcenter=* Enter username for 10.58.6.110 [root]: Enter root's password for 10.58.6.110: Enter username for 10.58.6.7 [administrator]: Administrator Enter Administrator's password for 10.58.6.7: error: failed to connect to the hypervisor error: internal error: Could not find Datacenter root@kvm-189:/home/cisco# Any suggestion on how to isolate (and possibly fix) the issue ? Thanks, Andrea -- [Description: Description: Description: http://www.cisco.com/swa/i/logo.gif] Andrea Buzzi TME @ MIBU abuzzi(a)cisco.com<mailto:abuzzi@cisco.com> Phone: +39 039.6295.319 Mobile: +39 348.711.9960 Cisco Systems Italy S.r.l Via Torri Bianche, 8 20871 Vimercate (MB) Italy Cisco.com<http://www.cisco.com/global/IT/> This email may contain confidential and privileged material for the sole use of the intended recipient. Any review, use, distribution or disclosure by others is strictly prohibited. If you are not the intended recipient (or authorized to receive for the recipient), please contact the sender by reply email and delete all copies of this message. For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/index.html

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[libvirt-users] A RFE for libvirt
by shyu 30 Oct '13

30 Oct '13

Hi libvirt guys, I am an newbie to libvirt. There is an requirement for libvirt: Every time I want to rename an guest by virsh command, I need to virsh edit origin_guest(edit the name,delete/edit the uuid) after that a new guest with the same configuration as origin_guest was defined, then virsh undefine origin_guest. Seems it's a little complex, so should be there an virsh command like "virsh rename origin_guest new_guest"? I know I can use virt-manager to rename an guest,but if there is an virsh command can do it, I think it's much useful. Thanks -- Regards shyu

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[libvirt-users] Automatically assign static ipv4 via dhcp to new VMs
by Tim 30 Oct '13

30 Oct '13

Hi guys, I'm running a KVM/libvirt host in a datacenter and got a fancy IPv4 subnet from my provider. I'm able to assign IPs from that subnet via dhcp to my VMs: host01 ~ # virsh net-dumpxml internet <network connections='3'> <name>internet</name> <uuid>37b888cc-510f-46f1-9246-346da96222ed</uuid> <forward dev='enp5s0f0' mode='route'> <interface dev='enp5s0f0'/> </forward> <bridge name='virbr1' stp='on' delay='0'/> <mac address='52:54:00:13:39:d5'/> <ip address='XX.YY.253.2' netmask='255.255.255.224'> <dhcp> <range start='XX.YY.253.4' end='XX.YY.253.30'/> <bootp file='pxelinux.0' server='XX.YY.99.100'/> </dhcp> </ip> </network> What I would like to do: 1) Right know it seems like dnsmasq assigns ip-addresses randomly to VMs, is there any way to assign them in ascending order? 2) IPs are not statically assigned. Is it possible to add something like this automatically at the first VM-start to the xml definition?: <host mac='AA:BB:CC:DD:EE:FF' ip='192.168.122.2' name='foobar'/>

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[libvirt-users] bridged networking using VLAN : guest with 2 NIC
by Dan Sa 30 Oct '13

30 Oct '13

hello all, I have been trying to set-up bridged network with VLAN and not able to succeed as many tutorials address only single NIC. I am trying to setup 2 guests (backtrack instance) each guest has NIC1 and NIC2. following is snippet for guest1 I am not able to get 192.168.0.2 address back on guest eth0. VIRT-MANAGER GUI : guest1-lan details radio button left side panel NIC1 ------------------> Virtual Network Interface Source Device : Virtual Network "default" NAT Device Model : Hypervisor default MAc Address : xxxxxxxxxxxxxx NIC2 ------------------> Virtual Network Interface Source Device : Specify Shared Device Name Bridge name : guest1-lan Device Model : virto MAc Address : xxxxxxxxxxxxxx HOST MACHINE : brctl show has br0 for bridge and virbr0 with 192.168.122.x address (created by default virtual network NAT) /etc/sysconfig/network-scripts/ 1) Bridge BR0 (cat ifcfg-br0) DEVICE="br0" TYPE="Bridge" ONBOOT="yes" NM_CONTROLLED="no" BOOTPROTO="static" IPADDR="xx.xx.xx.xx" NETMASK="255.255.254.0" GATEWAY="xx.xx.xx.xx" DNS1="x.y.z.s" DNS2="x.y.q.s" 2) cat ifcfg-em1 NM_CONTROLLED="yes" HWADDR="02:12D:E2:B1:32" BOOTPROTO="static" DEVICE="em1" BRIDGE="br0" ONBOOT="yes" 3) ifcfg-em2 NM_CONTROLLED="yes" HWADDR="02:24:7e:d0:b1:42" BOOTPROTO="static" DEVICE="em2" ONBOOT="yes" 4) THIS IS GUEST (cat ifcfg-guest1-lan) DEVICE=guest1-lan TYPE=Bridge ONBOOT=yes BOOTPROTO=static DELAY=1 5) GUEST VLAN (cat ifcfg-em2.620) DEVICE=em2.620 VLAN=yes ONBOOT=yes BRIDGE=guest1-lan BRCTL Show Command : br0 8000.00237de0a132 no em1 vnet0 guest1-lan 8000.00237de0a133 no em2.620 virbr0 8000.5254003e19b3 yes virbr0-nic VIRSH : virsh # net-list Name State Autostart ----------------------------------------- guest1-lan active yes default active yes virsh # iface-list Name State MAC Address -------------------------------------------- br0 active 00:23:7d:e0:a1:32 guest1-lan active 00:23:7d:e0:a1:33 iface-edit : virsh # iface-edit guest1-lan <interface type='bridge' name='guest1-lan'> <start mode='onboot'/> <bridge delay='1'> <interface type='vlan' name='em2.620'> <vlan tag='620'> <interface name='em2'/> </vlan> </interface> </bridge> </interface> ------------------------------------------------------------------ /etc/libvirt/qemu/networks cat guest1-lan.xml <network> <name>guest1-lan</name> <uuid>a12747ec-21c9-0d21-ab06-064ba204bc52</uuid> <forward mode='bridge' dev="br0"/> <bridge name='guest1-lan' /> <ip address='192.168.0.1' netmask='255.255.255.0'> <dhcp> <range start='192.168.0.2' end='192.168.0.254' /> </dhcp> </ip> </network> cat default.xml <network> <name>default</name> <uuid>8778244b-1a0c-c15f-c348-26462a07a639</uuid> <forward mode='nat'/> <bridge name='virbr0' stp='on' delay='0' /> <mac address='52:54:00:3E:19:B3'/> <ip address='192.168.122.1' netmask='255.255.255.0'> <dhcp> <range start='192.168.122.2' end='192.168.122.254' /> </dhcp> </ip> </network> any guidance will be appriciated regards dan

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[libvirt-users] sr-iov with openvswitch possible?
by Vasiliy Tolstov 30 Oct '13

30 Oct '13

Hi all. I'm try to find answer for my qustion in google, but i can't. if i use openvswitch virtualport in domain and want to use sr-iov does it possible? Or if i use sr-iov traffic not goes to openvswitch? -- Vasiliy Tolstov, e-mail: v.tolstov(a)selfip.ru jabber: vase(a)selfip.ru

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[libvirt-users] Installing tcp/ssh drivers for libvirt
by Shiva Bhanujan 30 Oct '13

30 Oct '13

Hello, Can somebody please point me to documentation regarding installing libvirt and the associated drivers from .rpms? I tried to compile from sources, but not sure where can I get the drivers from. What I get from the ./configure script is the following - configure:71547: Drivers configure:71549: configure:71551: Xen: no configure:71553: QEMU: yes configure:71555: UML: yes configure:71557: OpenVZ: yes configure:71559: VMware: yes configure:71561: VBox: yes configure:71563: XenAPI: no configure:71565: xenlight: no configure:71567: LXC: no configure:71569: PHYP: no configure:71571: ESX: no configure:71573: Hyper-V: no configure:71575: Parallels: no configure:71577: Test: yes configure:71579: Remote: yes configure:71581: Network: yes configure:71583: Libvirtd: yes configure:71585: Interface: no configure:71587: macvtap: no configure:71589: virtport: no If there were a yum repository where I could download the daemon and the drives, that'd be great? Any advice would be appreciated. Regards, Shiva

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[libvirt-users] Unable to provision VM attaching it directly to a OVS bridge
by Lucas Brasilino 29 Oct '13

29 Oct '13

Reposting from virt-tools mailing list: Hi! I'm facing a problem that could be triggered by some lacking of support from libvirt on Open vSwitch (or could be my mistake). I have interests in researching on virtual networks and SDN. To keep things simple, I've decided to use libvirt/virt-tools to manage VM's since my focus is on the network, instead of using a full feature system like OpenStack. I'm quite new with libvirt/virt-tools, but I have a good experience with openvswitch and other virtualizations technologies (which I dropped in libvirt/kvm favor). I'm using Fedora 19 packages openvswitch (1.11.0-1.fc19.x86_64) libvirt (1.0.5.6-3.fc19.x86_64) virt-install (0.10.0-4.fc19.noarch) I've created an OVS bridge (databr0) outside libvirt, and then defined it inside libvirt with: <network> <name>databr0</name> <forward mode='bridge'/> <bridge name='databr0'/> <virtualport type='openvswitch'/> </network> And then 'net-autostart' and 'net-start' it with virsh. Now I've got: # virsh net-list Name State Autostart Persistent ---------------------------------------------------------- databr0 active yes yes When I try to provision an VM, if I use the virt-install option "--network=bridge:databr0,model=virtio,mac=00:00:00:00:00:03" I got the following error: # virt-install --connect qemu:///system --virt-type kvm --name vm2 --ram 768 --disk path=/home/lucas/local/vm/images/vm2.img --vnc --cdrom /home/lucas/local/vm/fc19-x86_64.iso --network=bridge:databr0,model=virtio,mac=00:00:00:00:00:03 --os-type=linux --os-variant fedora19 Starting install... ERROR Unable to add bridge databr0 port vnet0: Operation not supported Domain installation does not appear to have been successful. If it was, you can restart your domain by running: virsh --connect qemu:///system start vm2 otherwise, please restart your installation. I just managed to create a VM when I use '--nonetworks' option and after I do a 'virtsh edit vm2' and add: <interface type='bridge'> <mac address='00:00:00:00:00:03'/> <source bridge='databr0'/> <virtualport type='openvswitch'/> <model type='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> </interface> Well, I read elsewhere that openvswitch bridging isn't fully supported. Is it the case or I'm facing another kind of problem ? regards Att Lucas Brasilino MSc Student @ Federal University of Pernambuco (UFPE) twitter: @lucas_brasilino

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[libvirt-users] Is it possible to define serial port speed?
by Marco André Dinis 29 Oct '13

29 Oct '13

Hi I would like to know if it's possible to define serial port speed using libvirt. I'm trying to connect the guest with the host for communication. Usually only small messages are transferred, but i might need to transfer huge files, so i would like to know if i can use SerialPort interface to do that. Thanks anyway, Marco Dinis

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[libvirt-users] how can I use libvirt to connect vbox
by hackxay 28 Oct '13

28 Oct '13

Hi. I want to connect hypervisor vbox using command of "virsh connect vbox:///session". But there is an error occurred: [root@vbox ~]# virsh connect vbox:///session error: Failed to connect to the hypervisor error: internal error unable to initialize VirtualBox driver API And my os is Fedora 19. The VirtualBox is 4.3. Some other info is there: [root@vbox ~]# virsh version Compiled against library: libvirt 1.0.5 Using library: libvirt 1.0.5 Using API: QEMU 1.0.5 Running hypervisor: QEMU 1.4.2 Thanks.

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[libvirt-users] virsh migrate fails with Input/output error
by Tim 27 Oct '13

27 Oct '13

Hey guys, I'm running the following setup on a few hosts: ~ # virsh version Compiled against library: libvir 0.9.8 Using library: libvir 0.9.8 Using API: QEMU 0.9.8 Running hypervisor: QEMU 1.0.0 Online Migrations with local storage are working smooth, Host OS is always Ubuntu 12.04, CPUs are Intel E3-1245 V2, 32GB Ram. Now I installed the same software on different hardware: Intel E5-2620, ~128GB Ram The problem: Online migrations from an E5-2620 to another E5-2620 aren't possible: ~ # virsh --debug=1 migrate --verbose my-virtual-maschine qemu+ssh://virt@192.168.99.16:222/system migrate: verbose(bool): (none) migrate: domain(optdata): vm-42800 migrate: desturi(optdata): qemu+ssh://virt@192.168.99.16:222/system migrate: found option <domain>: vm-42800 migrate: found option <domain>: vm-42800 error: End of file while reading data: : Input/output error error: Reconnected to the hypervisor I can't find anything related to this in the libvirt logfile or via an strace. Let me know if you have any ideas or if you need more information.

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[libvirt-users] Automated hashdeep and upgrade for VMs
by Sean Alexandre 25 Oct '13

25 Oct '13

Are there any utilities or scripts that automate the process of upgrading VMs, along with other maintenance such as doing a hashdeep check of system files? The key features I'm looking for would do something like: - A: Shut down VM. - B: Do a hashdeep check of system files. - C: Optionally restore VM from a previous backup. - D: Restart VM. - E: Upgrade packages. - F: Shut down VM. - G: Backup VM (for next "C".) - H: Run hashdeep on system files (for next "B".) - I: Restart VM. Other features, but less important, would backup/restore application files as well.

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[libvirt-users] libvirt_lxc causes cpu 100% usage
by 止语 24 Oct '13

24 Oct '13

libvirt_lxc causes cpu 100% usage? libvirt version : 1.1.1 I don't know what happend, any help would be appreciated. thx top - 07:39:44 up 1 day, 2:13, 2 users, load average: 4.72, 4.59, 4.51 Tasks: 243 total, 4 running, 239 sleeping, 0 stopped, 0 zombie %Cpu0 : 33.1 us, 1.3 sy, 0.0 ni, 64.6 id, 0.7 wa, 0.0 hi, 0.3 si, 0.0 st %Cpu1 : 41.1 us, 3.0 sy, 0.0 ni, 55.3 id, 0.7 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu2 : 18.0 us, 2.0 sy, 0.0 ni, 79.7 id, 0.0 wa, 0.0 hi, 0.3 si, 0.0 st %Cpu3 : 94.8 us, 5.2 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu4 : 55.7 us, 7.5 sy, 0.0 ni, 36.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu5 : 66.1 us, 4.3 sy, 0.0 ni, 29.6 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu6 : 16.8 us, 1.0 sy, 0.0 ni, 82.2 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu7 : 7.2 us, 0.7 sy, 0.0 ni, 92.1 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st KiB Mem: 1972112 total, 1894912 used, 77200 free, 236576 buffers KiB Swap: 10485744 total, 0 used, 10485744 free, 574544 cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 15750 root 20 0 10448 2080 1216 R 100.3 0.1 1322:38 libvirt_lxc 27517 root 20 0 10448 2032 1200 R 99.3 0.1 1273:44 libvirt_lxc 25250 root 20 0 10480 2048 1200 R 99.0 0.1 1277:31 libvirt_lxc ....

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[libvirt-users] cannot attach device using libvirt
by song 23 Oct '13

23 Oct '13

Hello guys: I am using libvirt 0.9.4 on a CentOS 6.3 server.The operation of attach device won't work.It states "error:Operation failed.Device hotplug is not supported." When issue attach device command, there's nothing happen in guest dmesg log. Anybody came across this problem? Any help will be appreciated!

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Re: [libvirt-users] kvm/libvirt can't use vmdk files? qemu: 'vmdk' invalid format
by Hammad Siddiqi 22 Oct '13

22 Oct '13

Dear All, While trying to run kvm VM using vmdk disk on 6.4 , I got into the following error, error: Failed to create domain from vmdkvm.xml error: internal error process exited while connecting to monitor: qemu-kvm: -drive file=/mnt/vmdkTOKVM/vmdkTOKVM.vmdk,if=none,id=drive-ide0-0-0,format=vmdk,cache=none: 'vmdk' invalid format upon further digging I came across this thread ( https://www.redhat.com/archives/libvirt-users/2011-November/msg00044.html) also qemu-kvm shows that vmdk is supported but all in vain Even if I try running with command line instead of XML I get error though it says it is supported [root@vmdkTOKVM]# /usr/libexec/qemu-kvm -drive file=/mnt/vmdkTOKVM/vmdkTOKVM.vmdk,format=? Supported formats: raw cow qcow vdi vmdk cloop dmg bochs vpc vvfat qcow2 qed parallels nbd blkdebug host_cdrom host_floppy host_device file [root@vmdkTOKVM]# /usr/libexec/qemu-kvm -drive file=/mnt/vmdkTOKVM/vmdkTOKVM.vmdk,format=vmdk qemu-kvm: -drive file=/mnt/XOcom-prx-kvm/XOcom-prx-kvm.vmdk,format=vmdk: 'vmdk' invalid format The packages being used are: qemu-img-0.12.1.2-2.355.0.1.el6_4.9.x86_64 qemu-kvm-0.12.1.2-2.355.0.1.el6_4.9.x86_64 qemu-kvm-tools-0.12.1.2-2.355.0.1.el6_4.9.x86_64 libvirt-0.10.2-18.el6_4.14.x86_64 Any help in this regard will highly be apprectiated. Thank you Hammad Siddqi

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[libvirt-users] hotplug is not supported
by song 22 Oct '13

22 Oct '13

Hello everybody: I am using libvirt 0.9.4 on centos 6.4,when I am trying to attach disk to a running vm, it shows : error: operation failed: drive hotplug is not supported Any body ever come across this problem?

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