- Users - libvirt List Archives

[libvirt-users] Stop the relabeling of CD images
by Cristian Ciupitu 21 Aug '13

21 Aug '13

Hi, I'm installing the operating system for my virtual machines from CD images and I would like for libvirtd to stop relabeling the corresponding files. Since the installation media is no big secret, I have labeled the files with system_u:object_r:public_content_t:s0, but libvirtd keeps changing them to system_u:object_r:svirt_image_t:s0. It also changes the ownership to qemu:qemu. This means that I can not make the files immutable (chattr +i). The XML dump of the machine looks like this : <disk type='file' device='cdrom'> <driver name='qemu' type='raw'/> <source file='/mnt/extra/Software/Linux/Fedora/Fedora-Live-Desktop-x86_64-19/Fedora-Live-Desktop-x86_64-19-1.iso'> <seclabel relabel='no'/> </source> <target dev='hdc' bus='ide'/> <readonly/> <shareable/> <address type='drive' controller='0' bus='1' target='0' unit='0'/> </disk> I am using libvirt-daemon-1.1.1-2.fc19.x86_64. You might also find interesting bug #568935 [1]. So how do I stop libvirtd from changing the permissions of the CD images? Thank you, Cristian Ciupitu [1]: https://bugzilla.redhat.com/show_bug.cgi?id=568935

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Re: [libvirt-users] Multi Queue KVM Support
by Paolo Bonzini 20 Aug '13

20 Aug '13

Il 20/08/2013 13:13, Naor Shlomo ha scritto: > Hi Paolo and thanks for your help. > > I upgraded the following (compiled from source) > qemu : 1.5.2 stable > libvirt : 1.1.1 > > but for some reason when I run the version command inside virsh: > > Compiled against library: libvirt 1.1.1 > Using library: libvirt 1.1.1 > Using API: QEMU 1.1.1 > Running hypervisor: QEMU 0.12.1 > > It says that my running Hypervisor is QEMU 0.12.1 > > Could you please tell me what did I miss, how do I upgrade the hypervisor? Not sure. Adding the libvirt-users mailing list. > Thanks, > Naor > > -----Original Message----- > From: Paolo Bonzini [mailto:paolo.bonzini@gmail.com] On Behalf Of Paolo Bonzini > Sent: Tuesday, August 20, 2013 12:28 PM > To: Naor Shlomo > Cc: kvm(a)vger.kernel.org > Subject: Re: Multi Queue KVM Support > > Il 20/08/2013 05:21, Naor Shlomo ha scritto: >> Hi Paolo, >> >> The host is running CentOS release 6.3 (Final). >> I did "yum upgrade libvirt" and "yum upgrade qemu-kvm" a couple of days ago and ended up with these versions. >> >> What do you suggest regarding qemu? compile 6.5 or later myself? > > RHEL/CentOS 6.5 is not yet out, it's still a few months before it's released. > > You can compile QEMU 1.6 from source, or wait for CentOS to have the feature. > > Paolo > >> I appreciate your help, >> Naor >> >> -----Original Message----- >> From: Paolo Bonzini [mailto:paolo.bonzini@gmail.com] On Behalf Of >> Paolo Bonzini >> Sent: Monday, August 19, 2013 11:22 PM >> To: Naor Shlomo >> Cc: kvm(a)vger.kernel.org >> Subject: Re: Multi Queue KVM Support >> >> Il 19/08/2013 13:29, Naor Shlomo ha scritto: >>> Hello experts, >>> >>> I am trying to use the multi queue support on a Linux guest running Kernel 3.9.7. >>> >>> The host's virsh version command reports the following output: >>> Compiled against library: libvirt 0.10.2 Using library: libvirt >>> 0.10.2 Using API: QEMU 0.10.2 Running hypervisor: QEMU 0.12.1 >> >> Is it RHEL or CentOS or Scientific Linux, or something else? If RHEL/CentOS, what release? >> >>> The problem is that virtio_has_feature(vdev, VIRTIO_NET_F_MQ) returns FALSE and I don't know why. >> >> This version of QEMU is too old. It's possible that 6.5 will have multiqueue, but I'm not entirely sure. >> >> Paolo >> -- >> To unsubscribe from this list: send the line "unsubscribe kvm" in the >> body of a message to majordomo(a)vger.kernel.org More majordomo info at >> http://vger.kernel.org/majordomo-info.html >> >

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[libvirt-users] Adding network interfaces to VMs created on ESX hypervisor
by varun bhatnagar 19 Aug '13

19 Aug '13

Hi, I want to create/attach two "internal" and one "host-only" interface to my node created by libvirt on ESX hypervisor. Is it possible to do so? If yes can anyone send a template of xml file? If it is not possible then is there any alternative for this? Regards, Varun

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[libvirt-users] Error while adding volume through virsh
by varun bhatnagar 16 Aug '13

16 Aug '13

Hi, I was trying to add volume...I got one xml snippet and I modified it according to my node configuration: < volume> <name>testNode/cluster.vmdk </name> <allocation>0 </allocation> <capacity unit='G'>2<capacity> </volume> Now when I executed "virsh vol-create datastore1 /local/new_volume.xml" one error message came saying: "Error: Failed to create volume from /local/new_volume.xml" Error: internal error: Creation of raw volumes is not supported" Can anyone tell me what is going wrong here? Regards, Varun

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[libvirt-users] RHEV hosts
by Parakkal, Navin S 16 Aug '13

16 Aug '13

Hi, I have couple of RHEV hosts (ovpxen,RHV2, RHV10 etc) and i'm trying to connect from one of the client machine (C1). All the RHEV host have libvirt modified by vdsm. It looks like the below ## beginning of configuration section by vdsm-4.10.2 listen_addr="0.0.0.0" unix_sock_group="kvm" unix_sock_rw_perms="0770" auth_unix_rw="sasl" host_uuid="036118ab-705f-4aeb-9a13-013dc8af6b41" keepalive_interval=-1 log_outputs="1:file:/var/log/libvirtd.log" log_filters="3:virobject 3:virfile 2:virnetlink 3:cgroup 3:event 3:json 1:libvirt 1:util 1:qemu" ca_file="/etc/pki/vdsm/certs/cacert.pem" cert_file="/etc/pki/vdsm/certs/vdsmcert.pem" key_file="/etc/pki/vdsm/keys/vdsmkey.pem" ## end of configuration section by vdsm-4.10.2 # ls bkp-2013-08-16_110734_cacert.pem cacert.pem vdsmcert.pem bkp-2013-08-16_110734_vdsmcert.pem engine_web_ca.pem [root@ovpxen certs]# pwd /etc/pki/vdsm/certs [root@ovpxen certs]# certtool -i --infile engine_web_ca.pem | head X.509 Certificate Information: Version: 3 Serial Number (hex): 09 Issuer: C=US,O=HP,CN=CA-IWFVM00772.hpswlabs.adapps.hp.com.64431 Validity: Not Before: Wed Jan 23 13:24:14 UTC 2013 Not After: Sun Jan 22 07:54:14 UTC 2023 Subject: C=US,O=HP,CN=CA-IWFVM00772.hpswlabs.adapps.hp.com.64431 Subject Public Key Algorithm: RSA Modulus (bits 1024): certtool -i --infile cacert.pem | head X.509 Certificate Information: Version: 3 Serial Number (hex): 09 Issuer: C=US,O=HP,CN=CA-IWFVM00772.hpswlabs.adapps.hp.com.64431 Validity: Not Before: Wed Jan 23 13:24:14 UTC 2013 Not After: Sun Jan 22 07:54:14 UTC 2023 Subject: C=US,O=HP,CN=CA-IWFVM00772.hpswlabs.adapps.hp.com.64431 Subject Public Key Algorithm: RSA Modulus (bits 1024): [root@ovpxen certs]# certtool -i --infile vdsmcert.pem | head X.509 Certificate Information: Version: 3 Serial Number (hex): 0c Issuer: C=US,O=HP,CN=CA-IWFVM00772.hpswlabs.adapps.hp.com.64431 Validity: Not Before: Thu Aug 15 11:09:22 UTC 2013 Not After: Wed Aug 15 05:39:22 UTC 2018 Subject: O=HP,CN=16.184.46.53 Subject Public Key Algorithm: RSA Modulus (bits 2048): Now from the client C1 which cert should i place in /etc/pki/CA/cacert.pem so that i can access from the client using the URI qemu+tls://ovpxen.ind.hp.com/system. Please note the host IWFVM00772.hpswlabs.adapps.hp.com is ovirt managed host. It is not the client. My problem here is i can't change the hypervisor hosts as there are too many of them and it is configured by vdsm . What certs should i take from host so that i can use it in the client so that i can connect to multiple hosts from the client using virsh or virt-manager . I need tls as remote protocol as i'm trying to automate commands. Regards, Navin

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[libvirt-users] Libvirt Sandbox mini-website
by Daniel P. Berrange 14 Aug '13

14 Aug '13

While we've been working on it for a little while, we've never really had any content on libvirt.org focusing on the libvirt sandbox toolkit. To address this content gap, I've started a small website to provide useful info around their design, technology & usage. http://sandbox.libvirt.org/ Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|

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[libvirt-users] virt-sandbox of X applications
by Dave Allan 14 Aug '13

14 Aug '13

Is it possible to use virt-sandbox to confine X applications? Dave

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[libvirt-users] Modify Iptables Rules (virbr0 & virbr1)
by Jorge Fábregas 13 Aug '13

13 Aug '13

Hi, I have some guests running in the "default" network (virbr0) and I've also created a similar (NAT) network (virbr1). Therefore, the FORWARD chain for the CentOS 6.4 host looks like this: http://fpaste.org/29229/75281379/ ...where line 3-7 are related to virbr0 and 8-12 to virbr1. My 2 questions: 1) I've noticed that I can ping from a guest within virbr0 to any guest on the virbr1 network. However, I can't do the same from virbr1 (ping guests on virbr0). This is because of "line 6" on the pastebin, where the traffic is REJECTED. I originally thought that If I create multiple NAT networks (just like the default virbr0) they would be able to talk to each other (the host doing the actual forwarding) but as you can see, based on the iptables rules that libvirt injects, this only happens for the first network. That is, the first network can reach all other networks (just because it happens to be the first one defined). Is this the intention (only default can talk to the others but not the other way around)? 2) I would like both networks to talk to each other. If I remove line #6 I can make virbr1 guests talk to virbr0 guests. What is the correct way to handle this? I obviously don't want to perform "iptables -D FORWARD line-number..." every time I start libvirt. (I really like to leave the networks as they are, NAT, dhcp running etc). Thanks! Jorge

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[libvirt-users] Error while starting the node on ESXi hypervisor
by varun bhatnagar 13 Aug '13

13 Aug '13

Hi, Today I was trying to start a node using libvirt on ESX (esxi-5.1) hypervisor and I got the following error message: *virsh # define /local/myNode/esxdomain.xml* *Domain testNode defined from /local/myNode/esxdomain.xml* *virsh # start testNode* *error: Failed to start domain testNode* *error: internal error: Could not start domain: GenericVmConfigFault - Cannot open the disk /vmfs/volues/5208f99d-760cf4a2-000c29520788/testNode.vmdk or one of the snapshot disks it depends on.* * * * * I checked the datastore of my ESX server and found out that instead of file one directory is getting created with the name* cluster.vmdk *and inside it there are few more files but cluster.vmdk file is not there. * * /vmfs/volumes # cd datastore1 /vmfs/volues/5208f99d-760cf4a2-000c29520788 # ls cluster.vmdk /vmfs/volues/5208f99d-760cf4a2-000c29520788 # cd cluster.vmdk /vmfs/volues/5208f99d-760cf4a2-000c29520788/cluster.vmdk # ls -ltr *-rw-r--r-- 1 root root 261 Aug 12 17:30 cluster.vmdk* *-rw-r--r-- 1 root root 674 Aug 12 17:30 cluster.vmx* *-rw-r--r-- 1 root root 0 Aug 12 17:30 cluster.vmsd* /vmfs/volues/5208f99d-760cf4a2-000c29520788/cluster.vmdk # Can anyone tell me how to start a node and why I am getting that error message. Below is my xml file. *<domain type='vmware'>* * <name>testNode</name>* * <uuid>50115e16-9bdc-49d7-f171-53c4d7f91710</uuid>* * <memory>1048576</memory>* * <currentMemory>1048576</currentMemory>* * <vcpu>1</vcpu>* * <os>* * <type arch='x86_64'>hvm</type>* * </os>* * <devices>* * <disk type='file' device='disk'>* * <source file='[datastore1] cluster.vmdk'/>* * <target dev='sda' bus='scsi'/>* * <address type='drive' controller='0' bus='0' unit='0'/>* * </disk>* * <controller type='scsi' index='0'/>* * <interface type='bridge'>* * <mac address='00:50:56:25:48:c7'/>* * <source bridge='VM Network'/>* * </interface>* * </devices>* *</domain>*

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[libvirt-users] vnc ip binding problem
by Jungnam Lee 12 Aug '13

12 Aug '13

Hi, all. I tested some operations with libvirt 1.1 on Xen 4.3 Creating vm seems okay, but I cannot connect to its vnc console. So, I checked its bining. [root@dev-2 ~]# netstat -antp|grep 5900 tcp 0 0 127.0.0.1:5900 0.0.0.0:* LISTEN 10508/qemu-system-i I tried several times, but it always binds 127.0.0.1 only. here's my xml. <domain type='xen' id='3'> <name>fv0</name> <uuid>4dea22b31d52d8f32516782e98ab3fa0</uuid> <os> <type arch='x86_64'>hvm</type> <loader>/usr/local/lib/xen/boot/hvmloader</loader> <boot dev='hd'/> </os> <memory>524288</memory> <vcpu>1</vcpu> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <features> <pae/> <acpi/> <apic/> </features> <clock sync="localtime"/> <devices> <emulator>/usr/local/lib/xen/bin/qemu-dm</emulator> <interface type='bridge'> <source bridge='cibr2'/> <mac address='00:16:3e:5d:c7:9e'/> <virtualport type='openvswitch'/> <script path='vif-openvswitch'/> </interface> <disk type='file'> <driver name="tap2" type="vhd"/> <source file='/var/cloudit/cache/centOS-6.4-x86_64_130711.vhd'/> <target dev='xvda' bus='xen'/> </disk> <graphics type='vnc' port='5900'> <listen type='address' address='172.31.0.104'/> </graphics> </devices> </domain> I tried both 0.0.0.0 and my public ip on the address attribute, and those didn't work too. Did I miss something? Regards, Jungnam Lee

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