December 2015 - Users - libvirt List Archives

[libvirt-users] ceph rbd pool and libvirt manageability (virt-install)
by Jelle de Jong 28 Aug '18

28 Aug '18

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello everybody, I created a rbd pool and activated it, but I can't seem to create volumes in it with virsh or virt-install? # virsh pool-dumpxml myrbdpool <pool type='rbd'> <name>myrbdpool</name> <uuid>2d786f7a-2df3-4d79-ae60-1535bcf1c6b5</uuid> <capacity unit='bytes'>6997998301184</capacity> <allocation unit='bytes'>10309227031</allocation> <available unit='bytes'>6977204658176</available> <source> <host name='ceph01.powercraft.nl' port='6789'/> <host name='ceph02.powercraft.nl' port='6789'/> <host name='ceph03.powercraft.nl' port='6789'/> <name>libvirt-pool</name> <auth type='ceph' username='libvirt'> <secret uuid='029a334e-ed57-4293-bb99-ffafa8867122'/> </auth> </source> </pool> # virt-install --version 1.0.1 # virsh --version 1.2.9 I ended using virsh edit ceph-test.powercraft.nl and making creating the disk manually. <disk type='network' device='disk'> <auth username='libvirt'> <secret type='ceph' uuid='029a334e-ed57-4293-bb99-ffafa8867122'/> </auth> <source protocol='rbd' name='libvirt-pool/kvm01-storage'> <host name='ceph01.powercraft.nl' port='6789'/> <host name='ceph02.powercraft.nl' port='6789'/> <host name='ceph03.powercraft.nl' port='6789'/> </source> <target dev='vdc' bus='virtio'/> </disk> I use virt-install a lot to define, import and undefine domains, how can I use virt-install to manage my rdb disks? Kind regards, Jelle de Jong -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iJwEAQECAAYFAlV1xlQACgkQ1WclBW9j5HkbPQP+PjNrzvlqysslOp2Yk7wH4Mxy 2sh2dn96G0KOAHEeEn3BN6IWlnD1TADZbHdpTtMwkdv48Xwn0sP1s+3QDM4pb3gP n+z+dVxS8FouDIy/eiso3IBCj3g4TWbEX8ZHqs3jKqe0lZgAXBzB9xYSUowcEBrZ ddkPbr8p8ozWyOG+9V8= =lkK7 -----END PGP SIGNATURE-----

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[libvirt-users] virRandomBits - not very random
by Brian Rak 01 Jun '18

01 Jun '18

I just ran into an issue where I had about 30 guests get duplicate mac addresses assigned. These were scattered across 30 different machines. Some debugging revealed that: 1) All the host machines were restarted within a couple seconds of each other 2) All the host machines had fairly similar libvirtd pids (within ~100 PIDs of each other) 3) Libvirt seeds the RNG using 'time(NULL) ^ getpid()' This perfectly explains why I saw so many duplicate mac addresses. Why is the RNG seed such a predictable value? Surely there has to be a better source of a random seed then the timestamp and the pid? The PID seems to me to be a very bad source of any randomness. I just ran a test across 60 of our hosts. 43 of them shared their PID with at least one other machine.

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[libvirt-users] Libvirt bite sized tasks
by Michal Privoznik 20 Mar '16

20 Mar '16

Dear lists, I've just started new wiki page which aim is to summarize small and trivial tasks, that starting contributors can take, investigate and implement. The aim is to give them something easy to start with while not scaring them out about complexity of our code. The page can be found here: http://wiki.libvirt.org/page/BiteSizedTasks The name is copied from qemu wiki: http://wiki.qemu.org/BiteSizedTasks Please, feel free to extend the list. I plan to use it in the future when interviewing GSoC candidates. Michal

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[libvirt-users] unable to dissect libvirt rpc packets using wireshark plugin
by gowrishankar 20 Jan '16

20 Jan '16

Hi, I am trying libvirt plugin in wireshark to dissect RPC payload in TCP, but finding dissector code not really working. My env is Fedora core 21 (x86_64) and installed packages are as follow: wireshark-1.12.6-1.fc21.x86_64 libvirt-wireshark-1.2.9.3-2.fc21.x86_64 Earlier, just after installation, I noticed libvirt.so available only in /usr/lib64/wireshark/plugins/1.12.5/ . Wireshark could not load libvirt plugin. So, I copied above .so into 1.12.6/ under same plugins folder, following it wireshark could list libvirt as supported protocol. tshark -G protocols | grep libvirt Libvirt libvirt libvirt However, on checking with some pcaps which has libvirt RPC calls captured on wire, wireshark does not list libvirt RPC packets, as I search for "libvirt" protocol in pcap. Have anyone experienced this before or if you have any pointer that I could check in my env, that would be very helpful. -- Regards, Gowrishankar M

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[libvirt-users] Efficient live disk backup with active blockcommit : Failed 'block-commit': Could not reopen file: Permission denied
by Keyur Bhalerao 06 Jan '16

06 Jan '16

Hi , Working on the simple POC : Advanced snapshot using libvirt and qemu . Following are the exact steps which are followed . 1. Created as base VM - Ubuntu 15.10 with following libvirt and qemu versions Using library: libvirt 1.2.16 Using API: QEMU 1.2.16 Running hypervisor: QEMU 2.3.0 QEMU emulator version 2.3.0 (Debian 1:2.3+dfsg-5ubuntu9.1), Copyright (c) 2003-2008 Fabrice Bellard 2.Created nested VM (vm-01) using VirtManager on base VM. 3.Used following commands to take the multiple snapshots - virsh # list Id Name State ---------------------------------------------------- 7 vm-01 running virsh # domblklist vm-01 Target Source ------------------------------------------------ vda /home/ubuntu/vm-01.img hda /dev/sr0 snapshot-create-as --domain vm-01 snap1 --diskspec vda,file=/var/lib/libvirt/sn1.qcow2 --disk-only --atomic snapshot-create-as --domain vm-01 snap2 --diskspec vda,file=/var/lib/libvirt/sn2.qcow2 --disk-only --atomic virsh #snapshot-list vm-01 ------------------------------------------------------------ snap1 2015-12-07 11:51:51 -0800 disk-snapshot snap2 2015-12-07 11:52:28 -0800 disk-snapshot virsh # snapshot-list vm-01 --tree snap1 | +- snap2 List the current block device in use, again. It can be noticed, the new overlay 'sn2.qcow2' is the current disk in use: virsh # domblklist vm-01 Target Source ------------------------------------------------ vda /var/lib/libvirt/sn2.qcow2 hda /dev/sr0 Now that the backup is finished, perform active blockcommit by live mergning contents of sn2 into base: ubuntu@keyurubuntu:~$ virsh blockcommit vm-01 vda --active --verbose --pivot error: internal error: unable to execute QEMU command 'block-commit': Could not reopen file: Permission denied I am not sure why this is getting as permission denied. I have tried couple of times reinstalling and creating new VMs . Every time when i have tried to block-commit getting landed into same error. Is there any troubleshooting or solution to this issue. Stuck on this issue for last 2 days. Quick help much appreciated. Thanks, Keyur Bhalerao Reference used - http://wiki.libvirt.org/page/Live-disk-backup-with-active-blockcommit - http://kashyapc.com/2012/09/14/externaland-live-snapshots-with-libvirt/

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[libvirt-users] Hypervisor loses network connectivity
by Phill Edwards 04 Jan '16

04 Jan '16

I have been running KVM on a CentOS 7.1 host for a few months. I have one "main" host server plus a "backup" host server. Some time ago everything was running fine on "main", but all of a sudden the server became non-contactable on it's network interface. I could no longer SSH in and therefore couldn't run virt-manager. I don't know what caused this and I had to bring all the VMs up on "backup" and they've been running OK there ever since. Over the last few days I've rebuilt "main" and again all was going well and I migrated 4 of the 5 VMs back onto it. Then this morning I came to set up the final VM on "main" which is a Sophos firewall machine with 3 NICs (I have 3 physical NICs). Nothing uses 2 of the 3 NICs except the Sophos VM. I unplugged one of the ethernet cables from "backup" and plugged it into the 3rd NIC on "main" and all of a sudden "main" froze and again all network connectivity was lost. I rebooted it but the problem still remains that it's not contactable over the network and is therefore totally non-functional. When I log in at the console and run "ip a" I can see various network interfaces including br0 with the expected IP address - so it looks like it's got network connectivity but it hasn't. Has anyone else experienced this and know why it happens and how to fix it? I don't think I fancy rebuilding everything a 3rd time as it seems likely to happen again. Depending on why it's happening I'm thinking of moving off CentOS onto Ubuntu as the host OS, or moving away from KVM altogether. Thanks in advance for any help you can give.

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[libvirt-users] QXL-driver for Windows 10
by Dominique Ramaekers 24 Dec '15

24 Dec '15

Hi, I can't seem to find a QXL-driver for Windows 10. The qxl-0.1-21 won't install due to being incompatible to Windows 10. Am I missing something? Thanks in advance, Dominique.

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[libvirt-users] double nat - common setup
by lejeczek 22 Dec '15

22 Dec '15

hi everybody my mind must have gone blank & eyes blind, I'm hoping it's simple and somebody can shed the light on bit I cannot see. a regular default net: <network> <name>default</name> <uuid>4c0a0c44-7e8a-493b-a57c-87cd38eaa0f7</uuid> <forward mode='nat'/> <bridge name='virbr0' stp='on' delay='0'/> ... a winbox on that net and I cannot access it from/via Internet, port forwarding fixed on the default gw/internet interface (or rather firewalld's zone), it forwards to winbox. what is it?

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[libvirt-users] Setting environment variables for LXC Containers
by Harish Vishwanath 22 Dec '15

22 Dec '15

Hello Is there a way to set custom environment variables for LXC containers so that it is available for all processes within the container? The libvirt-lxc driver seems to be setting up only the below variables (as per the docs), but there doesn't seem to be a way customize it. containerThe fixed string libvirt-lxc to identify libvirt as the creator container_uuidThe UUID assigned to the container by libvirtPATHThe fixed string /bin:/usr/binTERMThe fixed string linuxHOMEThe fixed string / In addition to the standard variables, the following libvirt specific environment variables are also provided LIBVIRT_LXC_NAMEThe name assigned to the container by libvirt LIBVIRT_LXC_UUIDThe UUID assigned to the container by libvirt LIBVIRT_LXC_CMDLINEThe unparsed command line arguments specified in the container configuration. Use of this is discouraged, in favour of passing arguments directly to the container init process via the initarg config element. I am looking for something similar to this: https://linuxcontainers.org/lxc/manpages/man5/lxc.container.conf.5.html (lxc.environment) Regards, Harish

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[libvirt-users] centos6.5 libvirt 1.2.14 virsh hang
by 王李明 21 Dec '15

21 Dec '15

hi all： my environment is centos6.5 libvirt version is 1.2.14-1 qemu version is 1.7.0-1 I use openstack create a windows guest about two days later I run virsh list but the the process is hang virsh list can not return any thing it hang then I run /etc/init.d/libvirtd restart it show libivrtd stop faild and start failed I run /etc/init.d/libvirtd status it show libvired dead but subsys locked who can help me ? thans

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[libvirt-users] Getting IP address of a lxc container via libvirt
by Harish Vishwanath 18 Dec '15

18 Dec '15

Hello I wanted to understand if there is a way to get LXC container's ip address. - virDomainInterfaceAddresses API only works for qemu/kvm and not with the lxc driver. What other options do I have? Using enter-lxc-namespace is throwing this error: virsh -c lxc:/// lxc-enter-namespace <domain> --noseclabel /sbin/ifconfig libvirt: error : Expected at least one file descriptor Appreciate any help. Regards, Harish

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[libvirt-users] migrate a guest from VMware to KVM
by Andrei Perietanu 17 Dec '15

17 Dec '15

I am trying to migrate a VMware guest to KVM. I have the .vmdk file which I convert to qcow2 format using qemu-img convert. The next step is to import the new img file. If I use virt-install --import <guest config options> it all works fine. But when I try the same think using the libvirt API I get the "no boot disk found" message when starting the vm. When importing the VM through the libvirtAPI, I use the same xml description virsh outputs (dumpxml) after initially doing the import. xml - the description I got using virsh xmldump <domain name> xmlDesx = xml conn.defineXML(xmlDesc) One other important aspect is I am using a directory storage pool to store all my volumes (.img files). When I use virsh to import the vm, the storage pool recognizes the new volume (the .img file I converted from the .vmdk file). But when I use the libvirtAPI, it does not. So my guess is that because the storage pool does not see the new volume when I import the vm is the reason I get the "no boot disk found message". Is there a way to tell the storage pool about the new volume? What exactly does virsh do and I am not ? Thanks, Andrei -- The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited. If you receive this in error please contact the sender and delete the material from any computer immediately. It is the policy of Klas Limited to disavow the sending of offensive material and should you consider that the material contained in the message is offensive you should contact the sender immediately and also your I.T. Manager. Klas Telecom Inc., a Virginia Corporation with offices at 1101 30th St. NW, Washington, DC 20007. Klas Limited (Company Number 163303) trading as Klas Telecom, an Irish Limited Liability Company, with its registered office at Fourth Floor, One Kilmainham Square, Inchicore Road, Kilmainham, Dublin 8, Ireland.

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[libvirt-users] Passing a USB hub
by Ruben Torrero Marijnissen 17 Dec '15

17 Dec '15

Hi, I'm trying to assign a complete USB Hub to my Windows 10 guest, using libvirt 1.3. Following the documentation, I tried adding the following to the definition of my guest: ... <devices> .. <hub type='usb'> <address type='usb' bus='1' port='10.2'/> </hub> .. </devices> To get the correct port, I used lsusb: [root@nobill-main 004]# lsusb -t /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 5000M /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 480M /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/10p, 5000M /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/16p, 480M |__ Port 5: Dev 110, If 0, Class=Hub, Driver=hub/4p, 480M |__ Port 1: Dev 52, If 0, Class=Hub, Driver=hub/4p, 480M |__ Port 1: Dev 53, If 0, Class=Human Interface Device, Driver=usbhid, 12M |__ Port 1: Dev 53, If 1, Class=Human Interface Device, Driver=usbhid, 12M |__ Port 3: Dev 54, If 0, Class=Human Interface Device, Driver=usbhid, 12M |__ Port 3: Dev 54, If 1, Class=Human Interface Device, Driver=usbhid, 12M |__ Port 3: Dev 54, If 2, Class=Human Interface Device, Driver=usbhid, 12M |__ Port 4: Dev 55, If 1, Class=Human Interface Device, Driver=usbhid, 12M |__ Port 10: Dev 117, If 0, Class=Hub, Driver=hub/4p, 480M |__ Port 2: Dev 118, If 0, Class=Hub, Driver=hub/4p, 480M |__ Port 11: Dev 8, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M |__ Port 11: Dev 8, If 1, Class=Human Interface Device, Driver=usbhid, 1.5M (I want to assign port 10 in bus 1, the one that (still) has nothing attached to it. I can save it correctly, but after doing so, the guest wont start, complaining it can't find bus with index 1. After playing with lots of different configurations, my conclusions are: - Any other bus different than 0, will make virt-manager instantly complain that it cant find the bus (weird, since bus 0 doesn't exist according to lsusb) - Some ports allow the guest to start, but I won't be able to see the hub on windows. - Some other ports make virt-manager complain that it can't find anything attached there. Has anyone managed to get this working? Thanks, Rubén

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[libvirt-users] Questions about qcow2 file size management
by Jérôme 17 Dec '15

17 Dec '15

Hi all. I have a few questions regarding the qcow2 format. 1/ Allocated size vs. file size When creating a VM, I indicated a size of 10 G. $ls -lsh 7,7G -rw------- 1 libvirt-qemu libvirt-qemu 11G oct. 14 10:04 prod.qcow2 The allocated size is lesser than max size. Alright. I think I more or less grab the difference between allocated size and file size, but I'm not sure I get the point of the auto-grow feature of qcow2. Can someone confirm that if I have, say, a 60Go partition, I can create more than six 10Go VM, as long as each don't actually use the full 10 Go? Sort of like flying companies selling more tickets than seats in the plane assuming a few people won't come. In other words, can I have this on a 60Go drive? total 53G 7,4G -rw------- 1 root root 11G oct. 8 06:34 prod_151008.qcow2 7,4G -rw------- 1 root root 11G oct. 9 06:37 prod_151009.qcow2 7,5G -rw------- 1 root root 11G oct. 10 06:41 prod_151010.qcow2 7,5G -rw------- 2 root root 11G oct. 11 06:49 prod_151011.qcow2 7,5G -rw------- 1 root root 11G oct. 12 06:44 prod_151012.qcow2 7,5G -rw------- 1 root root 11G oct. 13 06:27 prod_151013.qcow2 7,7G -rw------- 1 root root 11G oct. 14 06:55 prod_151014.qcow2 (Total allocated is 53 < 60 but sum of 11G sizes is 77 G.) If so, then I guess I get the point. 2/ Backup size Is there a simple way to do backups that only take the actual allocated space (7,7 G in my example) instead of the max (10 G)? I'm using snapshots and blockcommits to backup a VM, thanks to help on this list. The scripts are on GitHub for anyone interested [1]. Basically, what the script does is snapshot then cp as local backup file. Then rsync to another backup partition. Both source and destination partitions are ext4. Source dir (where I cp the snapshots): # ls -lsh vmbackup/daily/ total 53G 7,4G -rw------- 1 root root 11G oct. 8 06:34 prod_151008.qcow2 7,4G -rw------- 1 root root 11G oct. 9 06:37 prod_151009.qcow2 7,5G -rw------- 1 root root 11G oct. 10 06:41 prod_151010.qcow2 7,5G -rw------- 2 root root 11G oct. 11 06:49 prod_151011.qcow2 7,5G -rw------- 1 root root 11G oct. 12 06:44 prod_151012.qcow2 7,5G -rw------- 1 root root 11G oct. 13 06:27 prod_151013.qcow2 7,7G -rw------- 1 root root 11G oct. 14 06:55 prod_151014.qcow2 Destination (where rsync copies the files): # ls -lsh /mnt/usb_hd/vm/vmbackup/daily/ total 71G 11G -rw------- 1 root root 11G oct. 8 06:34 prod_151008.qcow2 11G -rw------- 1 root root 11G oct. 9 06:37 prod_151009.qcow2 11G -rw------- 1 root root 11G oct. 10 06:41 prod_151010.qcow2 11G -rw------- 2 root root 11G oct. 11 06:49 prod_151011.qcow2 11G -rw------- 1 root root 11G oct. 12 06:44 prod_151012.qcow2 11G -rw------- 1 root root 11G oct. 13 06:27 prod_151013.qcow2 11G -rw------- 1 root root 11G oct. 14 06:55 prod_151014.qcow2 Allocated size is as big as file size. This kind of beats the point of having qcow2 grow as needed. Ideally, I would like to create VM with a huge max file size, but only backup the actually used space. How may I achieve this? I just tested qemu-img convert -O qcow2 prod_151008.qcow2 prod_151008_resize.qcow2 and I get 7,2G -rw-r--r-- 1 root root 7,2G oct. 14 10:51 prod_151008_resize.qcow2 Seems to work. I could do this before rsyncing. Is this the recommanded way? Is there a higher level libvirt command to use instead of qemu-img? 3/ Playing with allocated space My VM apparently has an allocated size of 7.7 G 7,7G -rw------- 1 libvirt-qemu libvirt-qemu 11G oct. 14 10:04 prod.qcow2 However, loging into it shows much less than 7.7 G is used: $df -h Filesystem Size Used Avail Use% Mounted on /dev/vda1 9.8G 2.0G 7.3G 22% / udev 10M 0 10M 0% /dev tmpfs 2.0G 17M 2.0G 1% /run tmpfs 4.9G 4.0K 4.9G 1% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 4.9G 0 4.9G 0% /sys/fs/cgroup tmpfs 1003M 0 1003M 0% /run/user/1000 I understand once qcow2 has grown to a given allocated size, it won't de-allocate space automatically (auto-allocation is one way only). Perhaps I ended up loading 7Go of files, then those were deleted and now only 2Go are used but the file still has 7G allocated. Could be, but I don't see when this might have happened. Could there be another explanation? Say I want to minimize allocated space because it is a pity to use 2 Go and keep 7 Go backups (I know disk space is cheap, this is just an example), how may I shrink allocated space to currently used space? I'm not talking about shrinking the file, just minimizing the allocated size to keep small backups as per former paragraph, still keeping max file size big to let the VM grow further when needed. In other words, I'm aiming at 2,7G -rw------- 1 libvirt-qemu libvirt-qemu 11G oct. 14 10:04 prod.qcow2 not at 2,7G -rw------- 1 libvirt-qemu libvirt-qemu 2,7G oct. 14 10:04 prod.qcow2 The guest is a Linux, BTW. 4/ Playing with qcow2 file sizes Say I've got this file 7,7G -rw------- 1 libvirt-qemu libvirt-qemu 11G oct. 14 10:04 prod.qcow2 I'd like to make it bigger, like 7,7G -rw------- 1 libvirt-qemu libvirt-qemu 100G oct. 14 10:04 prod.qcow2 AFAIU, the steps would be - power off the VM - expand the qcow2 file size - from the host, extend the volume - power on the VM - from the guest, extend the filesystem I've seen various post on the internet but I'm a bit confused and some posts may be to old to consider new libvirt/qemu possibilities, so I'd appreciate a safe pointer. (I'm also interested in reducing file size.) Thanks for any hint. [1] https://github.com/Jerome-github/vmbackup -- Jérôme

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[libvirt-users] vdsm / qemu agent Windows sources
by Jean-Pierre Ribeauville 16 Dec '15

16 Dec '15

Hi, Where may I find vdsm or qemu guest agent Windows sources since I want to check how they retrieve and open their relevant channel devices ? Thx for help. Regards, J.P. Ribeauville P: +33.(0).1.47.17.20.49 . Puteaux 3 Etage 5 Bureau 4 jpribeauville(a)axway.com<mailto:jpribeauville@axway.com> http://www.axway.com<http://www.axway.com/> P Pensez à l'environnement avant d'imprimer.

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[libvirt-users] virtlogd.socket: Failed to listen on sockets: Permission denied
by Alex Roithman 16 Dec '15

16 Dec '15

Fedora rawhide libvirt 1.3.0 http://ur1.ca/ocip1 <line 4> Is necessary to make a special rule for this socket in SELinux?

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[libvirt-users] Slow boot when no serial pty connected
by David Caro 16 Dec '15

16 Dec '15

Hi everyone! It's the first time I send a message to this list, I hope it's not the last :) So my issue is that when booting a disk image generated with virt-builder [1] it takes more than 5 minutes, waiting in the boot screen that says: " Booting from disk... press any key to continue. " The press any key message shows up to 5 times. The issue is that it stays in that screen for more than 5 min. If I attach a serial pty device, then it takes ~5 seconds to go through that screen (same messages, just show faster). I don't want to have to create a pty device each time I want to spin up a vm (if there's a way to tell libvirt to do that for me that would be ok too). Is there any workaround I can do to avoid having to create a pty and still get fast boot? The xml of the slow vm: <domain type='kvm'> <name>fedora23</name> <memory unit='MiB'>2048</memory> <vcpu>1</vcpu> <cpu mode='host-passthrough'> <topology sockets='1' cores='1' threads='1'/> </cpu> <os> <type arch='x86_64' machine='pc'>hvm</type> <boot dev='hd'/> <bootmenu enable='yes' timeout='3000'/> </os> <features> <acpi/> <apic/> <pae/> </features> <devices> <emulator>/usr/libexec/qemu-kvm</emulator> <disk type='file' device='disk'> <driver name='qemu' type='qcow2'/> <source file='/tmp/fedora-23.qcow2'/> <target dev='sda' bus='virtio'/> </disk> <graphics type='vnc' port='-1' autoport='yes' listen='0.0.0.0' keymap='en-us'/> <channel type='unix'> <source mode='bind'/> <target type='virtio' name='org.qemu.guest_agent.0'/> </channel> </devices> </domain> The same with this device boots fast: <serial type='pty'> <source path='/dev/pts/12'/> <target port='0'/> <alias name='serial0'/> </serial> The libvirt/qemu/kvm versions I'm using: ipxe-roms-qemu-20150407-3.gitdc795b9f.fc23.noarch libvirt-1.2.18.1-2.fc23.x86_64 libvirt-client-1.2.18.1-2.fc23.x86_64 libvirt-daemon-1.2.18.1-2.fc23.x86_64 libvirt-daemon-config-network-1.2.18.1-2.fc23.x86_64 libvirt-daemon-config-nwfilter-1.2.18.1-2.fc23.x86_64 libvirt-daemon-driver-interface-1.2.18.1-2.fc23.x86_64 libvirt-daemon-driver-libxl-1.2.18.1-2.fc23.x86_64 libvirt-daemon-driver-lxc-1.2.18.1-2.fc23.x86_64 libvirt-daemon-driver-network-1.2.18.1-2.fc23.x86_64 libvirt-daemon-driver-nodedev-1.2.18.1-2.fc23.x86_64 libvirt-daemon-driver-nwfilter-1.2.18.1-2.fc23.x86_64 libvirt-daemon-driver-qemu-1.2.18.1-2.fc23.x86_64 libvirt-daemon-driver-secret-1.2.18.1-2.fc23.x86_64 libvirt-daemon-driver-storage-1.2.18.1-2.fc23.x86_64 libvirt-daemon-driver-uml-1.2.18.1-2.fc23.x86_64 libvirt-daemon-driver-vbox-1.2.18.1-2.fc23.x86_64 libvirt-daemon-driver-xen-1.2.18.1-2.fc23.x86_64 libvirt-daemon-kvm-1.2.18.1-2.fc23.x86_64 libvirt-gconfig-0.2.2-1.fc23.x86_64 libvirt-glib-0.2.2-1.fc23.x86_64 libvirt-gobject-0.2.2-1.fc23.x86_64 libvirt-python-1.2.18-1.fc23.x86_64 qemu-common-2.4.1-1.fc23.x86_64 qemu-guest-agent-2.4.1-1.fc23.x86_64 qemu-img-2.4.1-1.fc23.x86_64 qemu-kvm-2.4.1-1.fc23.x86_64 qemu-system-x86-2.4.1-1.fc23.x86_64 Thanks!! [1] The image was created with the command: $ virt-builder --format=qcow2 fedora-23 -- David Caro Red Hat S.L. Continuous Integration Engineer - EMEA ENG Virtualization R&D Tel.: +420 532 294 605 Email: dcaro(a)redhat.com IRC: dcaro|dcaroest@{freenode|oftc|redhat} Web: www.redhat.com RHT Global #: 82-62605

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[libvirt-users] libvirt domain configuration xml
by Andrei Perietanu 15 Dec '15

15 Dec '15

I am trying to change a domain configuration from a python script. More specific, I want to edit the VNC settings. You can't do this using the libvirt API so you have to edit the domain configuration: Fo exmple, to disable VNC for a domain 'test1': vmXml = vm.XMLDesc(0) root = ET.fromstring(vmXml) devices = root.find('./devices') graphics = devices.find('graphics') devices.remove(graphics) xml = ET.tostring(root) with open('path_to/test1.xml', 'w') as f: f.write(xml) not the problem is with the test1.xml. Even though the domain configuration seems to be stored there, the file seems to be regenerated/overwritten so any changes I make will not take effect. So the question really is: where is the domain configuration stored? Am I editing the write file, or am I missing something? Thanks, Andrei -- The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited. If you receive this in error please contact the sender and delete the material from any computer immediately. It is the policy of Klas Limited to disavow the sending of offensive material and should you consider that the material contained in the message is offensive you should contact the sender immediately and also your I.T. Manager. Klas Telecom Inc., a Virginia Corporation with offices at 1101 30th St. NW, Washington, DC 20007. Klas Limited (Company Number 163303) trading as Klas Telecom, an Irish Limited Liability Company, with its registered office at Fourth Floor, One Kilmainham Square, Inchicore Road, Kilmainham, Dublin 8, Ireland.

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[libvirt-users] block-commit fails
by Fırat KÜÇÜK 15 Dec '15

15 Dec '15

Hello, one of my VM's blockcommit job always fails. How can I find the reason? Error message is not clear. virsh snapshot-create-as --domain my-vm backup-snapshot \ --diskspec vda,file=/foo/my-vm-snapshot.img \ --disk-only --atomic --no-metadata virsh blockcommit my-vm vda --active --verbose --wait --async virsh blockjob my-vm vda --pivot internal error: unable to execute QEMU command 'block-job-complete': The active block job for device 'drive-virtio-disk0' cannot be completed

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[libvirt-users] problem with bond/team network interfaces
by Nerijus Baliunas 15 Dec '15

15 Dec '15

Hello, I already asked similar question on May 2014. Then it started to work on CentOS 7.0 and 7.1. Now it fails again on 7.2. Setup is 2 network cards in a team, and then bridge between team and vnet0. The problem is, that I can ping KVM guest from host, but not from LAN. >From KVM host: arping -I br0 192.168.0.200 ARPING 192.168.0.200 from 192.168.0.201 br0 Unicast reply from 192.168.0.200 [52:54:00:AB:50:C9] 0.869ms Unicast reply from 192.168.0.200 [52:54:00:AB:50:C9] 0.937ms ... ^CSent 8 probes (1 broadcast(s)) Received 8 response(s) >From LAN (other host on the same network): arping -I eth1 192.168.0.200 ARPING 192.168.0.200 from 192.168.0.254 eth1 Unicast reply from 192.168.0.200 [52:54:00:AB:50:C9] 1.061ms ^CSent 5 probes (1 broadcast(s)) Received 1 response(s) Regards, Nerijus

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[libvirt-users] How to start guset os with specified IP address
by 落痕 15 Dec '15

15 Dec '15

Hi! Dear everyone. I met a problem with virsh. What should I do if I hope to start my guest os with specified IP address and guest os can be accessed by external computers? I tried to use route mode to configure my virbr0, but it cannot assign an IP to my guest os! If virbr0 are set NAT mode and act as a switch with dhcp, then the guest os cannot be accessed by external computer. note: Ubuntu server are install in host without xwindows, so I have to work with command line. Thanks!

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[libvirt-users] virt-manager 1.3.1 - broken ?? (Ubuntu 14.04 )
by Adolf Augustin 09 Dec '15

09 Dec '15

Hi, i just upgraded to virt-manager 1.3.1 (Kubuntu 14.04 with getdeb). I can connect to a remote Hypervisor (libvirtd/KVM) but when i try to "open" a VM, virt-manager gives me the following error: ============================================================================== summary=Fehler beim Starten der Details: Namespace Vte not available for version 2.91 details=Fehler beim Starten der Details: Namespace Vte not available for version 2.91 Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/engine.py", line 823, in _show_vm_helper details = self._get_details_dialog(uri, vm.get_connkey()) File "/usr/share/virt-manager/virtManager/engine.py", line 801, in _get_details_dialog obj = vmmDetails(conn.get_vm(connkey)) File "/usr/share/virt-manager/virtManager/details.py", line 367, in __init__ from .console import vmmConsolePages File "/usr/share/virt-manager/virtManager/console.py", line 30, in <module> from .serialcon import vmmSerialConsole File "/usr/share/virt-manager/virtManager/serialcon.py", line 32, in <module> gi.require_version("Vte", "2.91") File "/usr/lib/python2.7/dist-packages/gi/__init__.py", line 83, in require_version (namespace, version)) ValueError: Namespace Vte not available for version 2.91 ================================================================================= Any Suggestions ? virt-manager Verions 1.1.x-1.3.0 worked just fine. What happened ? -- Best regards Adolf Augustin E-mail: adolf.augustin(a)zettamail.de PGP-Key: 0xC4709AFE Fingerprint: 1806 35FA CAE8 0202 B7AF 12B9 5956 5BC0 C470 9AFE

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[libvirt-users] Issues with installing Libvirt 1.2.7 on Ubuntu 12.04
by Waqas Riaz 09 Dec '15

09 Dec '15

Hi, I am trying to manually install libvirt 1.2.7 on Ubuntu 12.04 LTS (64bit). I have installed libxml2-dev libgnutls-dev libcurl4-gnutls-dev python-dev, but I am facing dependency issues for libdevmapper libraries. Is there any workaround for this dependency? OR is there any other way to install libivirt 1.2.7 on Ubuntu 12.04. Following is the output of the error #apt-get install libdevmapper-dev Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: libdevmapper-dev : Depends: libdevmapper1.02.1 (= 2:1.02.48-4ubuntu7.4) but 2:1.02.90-2ubuntu1 is to be installed Depends: libdevmapper-event1.02.1 (= 2:1.02.48-4ubuntu7.4) but 2:1.02.90-2ubuntu1 is to be installed E: Unable to correct problems, you have held broken packages. Kind Regards, Waqas Riaz MTS, xFlow Research Inc. +92-332-6396672 waqas.riaz(a)xflowresearch.com <ashok(a)xflowresearch.com> www.xflowresearch.com This electronic message transmission contains information from the Company that may be proprietary, confidential and/or privileged. The information is intended only for the use of the individuals or entity named above. If you are not the intended recipient, be aware that any disclosure, copying or distribution or use of the contents of this information is prohibited. If you have received this electronic transmission in error, please notify the sender immediately by replying to the address listed in the “From:” field.

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[libvirt-users] Destroy autostarted network on shutdown
by Jan Grashöfer 07 Dec '15

07 Dec '15

Hi all, I just ran into problem properly stopping a network. I have defined a network and network hook script to accomplish some preparations and cleanup. Testing my configuration (virsh net-start and virsh net-destroy) was successfully. Now I wanted to automate the lifecycle. Unfortunately I realized that an autostarted network has to be persistent and thus will not be destroyed (even if the host gets shutdown). As it won't be destroyed, my cleanup doesn't get executed and I run into trouble. What would be the preferred way to implement an autostarting and autostopping network? Thanks, Jan

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[libvirt-users] virsh attach-device scripting ...
by Jean-Pierre Ribeauville 07 Dec '15

07 Dec '15

Hi, Did anybody ever try to script « virsh attach-device ...... < response.txt" in order to give virsh user and password needed when host is part of a ovirt cluster ? Cos , although I put in my response.txt two lines one for user the other for password , then it always asks question concerning password. ( username is correctly got from the .txt file.) Thanks for help. Regards, J.P. Ribeauville P: +33.(0).1.47.17.20.49 . Puteaux 3 Etage 5 Bureau 4 jpribeauville(a)axway.com<mailto:jpribeauville@axway.com> http://www.axway.com<http://www.axway.com/> P Pensez à l'environnement avant d'imprimer.

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[libvirt-users] libvirt logging of virDomainAttachDeviceFlags()
by Jean-Pierre Ribeauville 07 Dec '15

07 Dec '15

Hi, When using « virsh attach-device ....." to add a channel device to a Guest , I see following entry in libvirt log : 2015-12-07 11:14:47.307+0000: 14551: debug : virDomainAttachDeviceFlags:10433 : dom=0x7f2a58252fc0, ........ Great !! But , when calling virDomainAttachDeviceFlags( ) from a C program , I got return code -1 but nothing appears related to virDomainAttachDeviceFlags( ) in the libvirt log file . Others libvirt calls of this C program are correctly logged . Did I misunderstand something ? To add traces I've added these lines within /etc/libvirt/libvirtd.conf log_level = 1 log_outputs="1:file:/var/log/libvirt/libvirtd.log" Thx for help. Regards, J.P. Ribeauville P: +33.(0).1.47.17.20.49 . Puteaux 3 Etage 5 Bureau 4 jpribeauville(a)axway.com<mailto:jpribeauville@axway.com> http://www.axway.com<http://www.axway.com/> P Pensez à l'environnement avant d'imprimer.

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[libvirt-users] virsh attach device equivalent in libvirt API
by Jean-Pierre Ribeauville 04 Dec '15

04 Dec '15

Hi, Is there an equivalent of "virsh attach-device -live -persistent " within libvirt API : virDomainAttachDevice() or virDomainAttachDeviceFlags() or ??? Thanks for help. Regards, J.P. Ribeauville P: +33.(0).1.47.17.20.49 . Puteaux 3 Etage 5 Bureau 4 jpribeauville(a)axway.com<mailto:jpribeauville@axway.com> http://www.axway.com<http://www.axway.com/> P Pensez à l'environnement avant d'imprimer.

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[libvirt-users] virsh athentification failure
by Jean-Pierre Ribeauville 04 Dec '15

04 Dec '15

Hi, I wrote a C program running in a KVM host. Part of it adds a Unix Channel device in all Guests in order to have a dialog from Host to Guest. As long as my host wasn't part of an Ovirt cluster , all was running fine. I added my host in a ovirt cluster , and then , when running the script creating the channel device ( by using "virsh attach-device --persistent -live ....." ) , I got following error : Please enter your authentication name: Please enter your password: error: failed to connect to the hypervisor error: no valid connection error: authentication failed: Failed to step SASL negotiation: -1 (SASL(-1): generic failure: All-whitespace username.) What's the user/password I've to use then ? BTW , I've seen that following channel device was added to the Guest at its creation : /var/lib/libvirt/qemu/channels/ad1a8b0e-f8b6-4038-be3d-275f38e66eb3.org.qemu.guest_agent.0 What's used for ? I presume I cannot use for my private purpose ? I sent this topic to ovirt and libvirt mailing lists , cos I don't know which forum is the right one for this kind of subject. Thanks for help. Regards, J.P. Ribeauville P: +33.(0).1.47.17.20.49 . Puteaux 3 Etage 5 Bureau 4 jpribeauville(a)axway.com<mailto:jpribeauville@axway.com> http://www.axway.com<http://www.axway.com/> P Pensez à l'environnement avant d'imprimer.

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Re: [libvirt-users] snapshot of running vm's
by Lentes, Bernd 04 Dec '15

04 Dec '15

Dominique wrote: > > Never had that problem. Can it be a setting of the guest agent on the > guest? With me all the commands of the ga are enabled... > Where can i change the settings of the agent ? > You can check the commands by using this: > virsh qemu-agent-command $VM '{"execute": "guest-info"}' > > This way you can at least check that the command is really disabled. You'll > have to find a way to enable the command then... > > I can't help you further with this... > > > > > I managed to update to libvirt 1.2.11. Guest Agent is running in the vm. > > I'm trying to snapshot: > > > > virsh # snapshot-create-as --domain sles11 --name sn_sles11 --atomic > > --disk- only --quiesce > > error: internal error: unable to execute QEMU agent command > > 'guest-fsfreeze-freeze': The command guest-fsfreeze-freeze has been > > disabled for this instance > > > > What is now going on ? > > Guest Agent in VM is qemu-guest-agent-2.0.2-1.35. > > virsh # qemu-agent-command sles11 '{"execute": "guest-info"}' {"return":{"version":"2.0.2","supported_commands":[{"enabled":true,"name": "guest-set-vcpus","success-response":true},{"enabled":true,"name":"guest-g et-vcpus" ,"success-response":true},{"enabled":true,"name":"guest-network-get-interf aces","success-response":true},{"enabled":true,"name":"guest-suspend-hybri d","succe ss-response":false},{"enabled":true,"name":"guest-suspend-ram","success-re sponse":false},{"enabled":true,"name":"guest-suspend-disk","success-respon se":false },{"enabled":true,"name":"guest-fstrim","success-response":true},{"enabled ":true,"name":"guest-fsfreeze-thaw","success-response":true}, {"enabled":true,"name":"guest-fsfreeze-freeze","success-response":true} ,{"enabled":true,"name":"guest-fsfreeze-status","success-response":true},{ "enabled":true,"name":"guest-file- flush","success-response":true},{"enabled":true,"name":"guest-file-seek"," success-response":true},{"enabled":true,"name":"guest-file-write","success -response ":true},{"enabled":true,"name":"guest-file-read","success-response":true}, {"enabled":true,"name":"guest-file-close","success-response":true},{"enabl ed":true, "name":"guest-file-open","success-response":true},{"enabled":true,"name":" guest-shutdown","success-response":false},{"enabled":true,"name":"guest-in fo","succ ess-response":true},{"enabled":true,"name":"guest-set-time","success-respo nse":true},{"enabled":true,"name":"guest-get-time","success-response":true },{"enabl ed":true,"name":"guest-ping","success-response":true},{"enabled":true,"nam e":"guest-sync","success-response":true},{"enabled":true,"name":"guest-syn c-delimit ed","success-response":true}]}} It shows: "...{"enabled":true,"name":"guest-fsfreeze-freeze","success-response":true } It understand this that it should work. Bernd Helmholtz Zentrum Muenchen Deutsches Forschungszentrum fuer Gesundheit und Umwelt (GmbH) Ingolstaedter Landstr. 1 85764 Neuherberg www.helmholtz-muenchen.de Aufsichtsratsvorsitzende: MinDir'in Baerbel Brumme-Bothe Geschaeftsfuehrer: Prof. Dr. Guenther Wess, Dr. Nikolaus Blum, Dr. Alfons Enhsen Registergericht: Amtsgericht Muenchen HRB 6466 USt-IdNr: DE 129521671

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[libvirt-users] FAIL: qemuxml2argvtest , FAIL: virsh-uriprecedence after make check
by Héctor Abreu 04 Dec '15

04 Dec '15

Hi there, I'm new to libvirt and I'm trying to install it on a Debian Jessie system. My goal is to create and use VMs from the command line. When I get to the $ make check (not as root) I am getting the message below. I am not sure if those "failed" messages should be corrected before starting to use libvirt, not sure how important they are. I will appreciate any hint or advise. Thanks. ========================================= libvirt 1.3.0: tests/test-suite.log ========================================= # TOTAL: 115 # PASS: 112 # SKIP: 1 # XFAIL: 0 # FAIL: 2 # XPASS: 0 # ERROR: 0 .. contents:: :depth: 2 FAIL: qemuxml2argvtest ====================== TEST: qemuxml2argvtest ........................................ 40 ........................................ 80 ........................................ 120 ...!.................................... 160 ........................................ 200 ........................................ 240 ........................................ 280 ........................................ 320 ........................................ 360 ........................................ 400 ........................................ 440 ........................................ 480 ........................................ 520 ............. 533 FAIL FAIL: virsh-uriprecedence ========================= TEST: virsh-uriprecedence !!!! 4 FAILED SKIP: virsh-all =============== ./virsh-all: skipping test: This test is very expensive, so it is disabled by default. To run it anyway, rerun: make check VIR_TEST_EXPENSIVE=1

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[libvirt-users] Error message doesn't make sense
by Tashi Lu 04 Dec '15

04 Dec '15

Hi everyone, I incidentally configured two IDE controller for my machine-1.2 VM(it might be virsh attach-disk to blame), and I got the error message "Only a single IDE controller is unsupported...". I can't understand this error message, I think it means I HAVE to configure two or more IDE controllers until I looked it up in the source. At libvirt-1.2.22/src/qemu/qemu_command.c: 4916 case VIR_DOMAIN_CONTROLLER_TYPE_IDE: 4917 /* Since we currently only support the integrated IDE controller 4918 * on 440fx, if we ever get to here, it's because some other 4919 * machinetype had an IDE controller specified, or a 440fx had 4920 * multiple ide controllers. 4921 */ 4922 if (qemuDomainMachineIsI440FX(domainDef)) 4923 virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", 4924 _("Only a single IDE controller is unsupported " 4925 "for this machine type")); I didn't dig VIR_DOMAIN_CONTROLLER_TYPE_IDE up, but reasoning from the comment, I think this error message should be something like "More than one IDE controllers is not supported for this machine type"

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Re: [libvirt-users] snapshot of running vm's
by Lentes, Bernd 03 Dec '15

03 Dec '15

Dominique wrote: > > As stated in http://wiki.libvirt.org/page/Live-disk-backup-with-active- > blockcommit > You'll need libvirt 1.2.9 ... > > It seems even Suse enterprise 12 is still using libivrt 1.2.5... > > Bad luck. > > Before 1.2.9 I made my backups with a "virsh save $VM" but it cost a lot > of time to save a VM... > I managed to update to libvirt 1.2.11. Guest Agent is running in the vm. I'm trying to snapshot: virsh # snapshot-create-as --domain sles11 --name sn_sles11 --atomic --disk-only --quiesce error: internal error: unable to execute QEMU agent command 'guest-fsfreeze-freeze': The command guest-fsfreeze-freeze has been disabled for this instance What is now going on ? Guest Agent in VM is qemu-guest-agent-2.0.2-1.35. Bernd Helmholtz Zentrum Muenchen Deutsches Forschungszentrum fuer Gesundheit und Umwelt (GmbH) Ingolstaedter Landstr. 1 85764 Neuherberg www.helmholtz-muenchen.de Aufsichtsratsvorsitzende: MinDir'in Baerbel Brumme-Bothe Geschaeftsfuehrer: Prof. Dr. Guenther Wess, Dr. Nikolaus Blum, Dr. Alfons Enhsen Registergericht: Amtsgericht Muenchen HRB 6466 USt-IdNr: DE 129521671

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Re: [libvirt-users] snapshot of running vm's
by Lentes, Bernd 03 Dec '15

03 Dec '15

Dominique wrote: > -----Original Message----- > From: Dominique Ramaekers > [mailto:dominique.ramaekers@cometal.be] > Sent: Thursday, December 03, 2015 9:46 AM > To: Lentes, Bernd > Subject: RE: snapshot of running vm's > > > > > -----Oorspronkelijk bericht----- > > Van: Lentes, Bernd [mailto:bernd.lentes@helmholtz-muenchen.de] > > Verzonden: woensdag 2 december 2015 21:22 > > Aan: Dominique Ramaekers; libvirt-ML > > Onderwerp: RE: snapshot of running vm's > > > ... > > > > Hi, > > > > i have inserted: > > > > <channel type='unix'> > > <source mode='bind' > > > path='/var/lib/libvirt/qemu/channel/target/sles11.org.qemu.guest_age > nt > > .0'/ > > > > > <target type='virtio' name='org.qemu.guest_agent.0'/> > > <address type='virtio-serial' controller='0' bus='0' port='2'/> > > </channel> > > > > > > I didn't insert the path, it was added automatically, the same with > > "<address type='virtio-serial' controller='0' bus='0' port='2'/>". > > I tried already port 1 and 2, but get this error: > > > > sunhb58820:~/libvirt_1.2.11 # virsh start sles11 > > error: Failed to start domain sles11 > > error: internal error: process exited while connecting to monitor: > > qemu-kvm: -chardev > > > socket,id=charchannel0,path=/var/lib/libvirt/qemu/channel/target/sles1 > > 1.or > > g.qemu.guest_agent.0,server,nowait: Failed to bind socket: No such > > file or directory > > chardev: opening backend "socket" failed > > Does the path /var/lib/libvirt/qemu/channel/target/ exists? > Is libvirt able to write to this path? > Hi Dominique, no, the path does not exist. But from where does libvirt derive it ? I forgot: I'm still running libvirt 1.2.5. Do I need to update also for this problem ? Bernd Helmholtz Zentrum Muenchen Deutsches Forschungszentrum fuer Gesundheit und Umwelt (GmbH) Ingolstaedter Landstr. 1 85764 Neuherberg www.helmholtz-muenchen.de Aufsichtsratsvorsitzende: MinDir'in Baerbel Brumme-Bothe Geschaeftsfuehrer: Prof. Dr. Guenther Wess, Dr. Nikolaus Blum, Dr. Alfons Enhsen Registergericht: Amtsgericht Muenchen HRB 6466 USt-IdNr: DE 129521671

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Re: [libvirt-users] snapshot of running vm's
by Lentes, Bernd 03 Dec '15

03 Dec '15

Dominique wrote: > -----Original Message----- > From: Dominique Ramaekers > [mailto:dominique.ramaekers@cometal.be] > Sent: Thursday, December 03, 2015 9:46 AM > To: Lentes, Bernd > Subject: RE: snapshot of running vm's > > > > > -----Oorspronkelijk bericht----- > > Van: Lentes, Bernd [mailto:bernd.lentes@helmholtz-muenchen.de] > > Verzonden: woensdag 2 december 2015 21:22 > > Aan: Dominique Ramaekers; libvirt-ML > > Onderwerp: RE: snapshot of running vm's > > > ... > > > > Hi, > > > > i have inserted: > > > > <channel type='unix'> > > <source mode='bind' > > > path='/var/lib/libvirt/qemu/channel/target/sles11.org.qemu.guest_age > nt > > .0'/ > > > > > <target type='virtio' name='org.qemu.guest_agent.0'/> > > <address type='virtio-serial' controller='0' bus='0' port='2'/> > > </channel> > > > > > > I didn't insert the path, it was added automatically, the same with > > "<address type='virtio-serial' controller='0' bus='0' port='2'/>". > > I tried already port 1 and 2, but get this error: > > > > sunhb58820:~/libvirt_1.2.11 # virsh start sles11 > > error: Failed to start domain sles11 > > error: internal error: process exited while connecting to monitor: > > qemu-kvm: -chardev > > > socket,id=charchannel0,path=/var/lib/libvirt/qemu/channel/target/sles1 > > 1.or > > g.qemu.guest_agent.0,server,nowait: Failed to bind socket: No such > > file or directory > > chardev: opening backend "socket" failed > > Does the path /var/lib/libvirt/qemu/channel/target/ exists? > Is libvirt able to write to this path? > Hi Dominique, no, the path does not exist. But from where does libvirt derive it ? Bernd Helmholtz Zentrum Muenchen Deutsches Forschungszentrum fuer Gesundheit und Umwelt (GmbH) Ingolstaedter Landstr. 1 85764 Neuherberg www.helmholtz-muenchen.de Aufsichtsratsvorsitzende: MinDir'in Baerbel Brumme-Bothe Geschaeftsfuehrer: Prof. Dr. Guenther Wess, Dr. Nikolaus Blum, Dr. Alfons Enhsen Registergericht: Amtsgericht Muenchen HRB 6466 USt-IdNr: DE 129521671

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[libvirt-users] snapshot of running vm's
by Lentes, Bernd 02 Dec '15

02 Dec '15

Hi, i'd like to create snapshots of my running vm's. I have several hosts with SLES11 SP4 64bit. I use libvirt 1.2.5-7.1 . VM's are Windows 7, SLES, Ubuntu, Opensuse. I use raw files for the vm's. I try to orientate myself by http://wiki.libvirt.org/page/Live-disk-backup-with-active-blockcommit . The hosts are backuped every night by a network based backup solution (Legato). My idea is: - delete any existing snapshot - create a new snapshot - of course before Legato arrives - then Legato might come and saves my snapshot - next night the same Questions: When I delete a snapshot, is it merged automatically with its base image ? Or is it something I have to do explicitly (maybe via blockcommit) ? How can I get rid of the unused snapshot afterwards ? just rm ? Because I'm doing a live backup do I need to create an external snapshot ? To create an external snapshot do I have to provide --disk-only ? Do I have to provide --live as a parameter ? I tried --quiesce but got that message: virsh # snapshot-create --domain sles11 --atomic --disk-only --quiesce error: argument unsupported: QEMU guest agent is not configured The system I'm testing with is SLES11 SP4 (host and guest). I installed the guest agent: vm58820-8:~ # rpm -q qemu-guest-agent qemu-guest-agent-2.0.2-1.35 Is there something I have to configure ? Is this way of backup a good solution ? Is there something to improve, something I have to take care of ? Is this backup consistent ? Does that all work with libvirt 1.2.5-7.1 or do I need a more recent version (what I don't like because I tried already to update my libvirt but had tons of dependencies) ? I know. A lot of questions. But it's a backup, and I wanted to be sure that it operates properly. Thanks. Bernd -- Bernd Lentes Systemadministration institute of developmental genetics Gebäude 35.34 - Raum 208 HelmholtzZentrum München bernd.lentes(a)helmholtz-muenchen.de phone: +49 (0)89 3187 1241 fax: +49 (0)89 3187 2294 Wer Visionen hat soll zum Hausarzt gehen Helmut Schmidt Helmholtz Zentrum Muenchen Deutsches Forschungszentrum fuer Gesundheit und Umwelt (GmbH) Ingolstaedter Landstr. 1 85764 Neuherberg www.helmholtz-muenchen.de Aufsichtsratsvorsitzende: MinDir'in Baerbel Brumme-Bothe Geschaeftsfuehrer: Prof. Dr. Guenther Wess, Dr. Nikolaus Blum, Dr. Alfons Enhsen Registergericht: Amtsgericht Muenchen HRB 6466 USt-IdNr: DE 129521671

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[libvirt-users] create a directory storage pool in a random location
by Andrei Perietanu 02 Dec '15

02 Dec '15

Hi all, I am trying to figure out if you can store the definition of a directory storage pool in a custom location. This is how I create the storage pool: xmlDesc = """ <pool type='dir'> <name>guest_images_storage_pool</name> <uuid>8c79f996-cb2a-d24d-9822-ac7547ab2d01</uuid> <capacity unit='bytes'>4306780815</capacity> <allocation unit='bytes'>237457858</allocation> <available unit='bytes'>4069322956</available> <source> </source> <target> <path>/disk1/guest_images</path> <permissions> <mode>0755</mode> <owner>-1</owner> <group>-1</group> </permissions> </target> </pool>""" pool = conn.storagePoolDefineXML(xmlDesc, 0) This creates guest_images_storage_pool.xml in /etc/libvirt/storage. I assume this is the default path libvirt looks for any storage pools on the system The problem is that /etc is mapped to a ramdisk on my system. So after restart anything in there would be wiped. The path /disk1 maps to an actual hdd partition so ideally libvirt sould look for it's storage pools in there. I can't seem to make that happen. I tried adding a source path: <source> <dir path="/disk1/storage_pool"/> </source> But that has no effect. Any ideas? Andrei -- The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited. If you receive this in error please contact the sender and delete the material from any computer immediately. It is the policy of Klas Limited to disavow the sending of offensive material and should you consider that the material contained in the message is offensive you should contact the sender immediately and also your I.T. Manager. Klas Telecom Inc., a Virginia Corporation with offices at 1101 30th St. NW, Washington, DC 20007. Klas Limited (Company Number 163303) trading as Klas Telecom, an Irish Limited Liability Company, with its registered office at Fourth Floor, One Kilmainham Square, Inchicore Road, Kilmainham, Dublin 8, Ireland.

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[libvirt-users] libvirt list --all shows empty list after restart
by Andrei Perietanu 01 Dec '15

01 Dec '15

Hi all, I think I might have a small configuration issue: after restarting my machine, all the VMs previously installed are not available. virsh list --all shows an empty list. The .img files where the VMs were intalled are present in the folder I put them in. Furthermore if I import the VMs (virt-install -import) it all seems to work. It's just that I don't want to have to do this after every restart and can't find where libvirt picks up information about any existing VMs on the system. Thanks, Andrei -- The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited. If you receive this in error please contact the sender and delete the material from any computer immediately. It is the policy of Klas Limited to disavow the sending of offensive material and should you consider that the material contained in the message is offensive you should contact the sender immediately and also your I.T. Manager. Klas Telecom Inc., a Virginia Corporation with offices at 1101 30th St. NW, Washington, DC 20007. Klas Limited (Company Number 163303) trading as Klas Telecom, an Irish Limited Liability Company, with its registered office at Fourth Floor, One Kilmainham Square, Inchicore Road, Kilmainham, Dublin 8, Ireland.

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[libvirt-users] Why does libvirt insert USB controller automagically?
by Sundar Nadathur 01 Dec '15

01 Dec '15

Hello all, I find this curious behavior that libvirt will automatically insert a USB controller and a memballoon virtio driver into the domain's XML, when defineXML is called. IOW, the original XML did not have these 2 devices but they are present right after defineXML is called. Why should libvirt add a USB controller? DETAILS: Here is a little Python snippet to show that behavior: import libvirt conn = libvirt.open('qemu:///system') xml_list = open('/tmp/vm.xml', "r").readlines() in_xml = ''.join(xml_list) <-- This XML string does not have a USB or a memballoon dom = conn.defineXML(in_xml) out_xml = dom.XMLDesc() <-- But this XML string does! print out_xml The file /tmp/vm.xml does not have a memballoon or a USB device. Neither, of course, does in_xml string. But out_xml has: <controller type='usb' index='0'> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/> </controller> <memballoon model='virtio'> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> </memballoon> I don't see anything in libvirt.conf that explains this. This is libvirt version: 1.2.8, package: 16.el7_1.5 (Red Hat, Inc....). The host is RHEL 7.1. The memballoon part is understandable once I found: https://www.redhat.com/archives/libvir-list/2010-August/msg00132.html However, why should libvirt add a USB controller gratuitously? Is this controllable from the conf file? Cheers, Sundar ________________________________ Confidentiality Notice. This message may contain information that is confidential or otherwise protected from disclosure. If you are not the intended recipient, you are hereby notified that any use, disclosure, dissemination, distribution, or copying of this message, or any attachments, is strictly prohibited. If you have received this message in error, please advise the sender by reply e-mail, and delete the message and any attachments. Thank you.

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[libvirt-users] "Failed to start domain..."
by Ken D'Ambrosio 01 Dec '15

01 Dec '15

Sadly, I'm back with another issue. I can do a "system list --all" just fine; however, if I attempt to start the machines, I get back: maas@Bill-MAAS-cc:~$ strace -s 1024 -f -o /tmp/asdfasdf.log virsh -c vbox+ssh://gbadmin@10.20.0.1/system start PXE-client-07 error: Failed to start domain PXE-client-07 error: An error occurred, but the cause is unknown Log files on both client and server are pretty sparse on details of any sort... as, again, is Google. Any ideas? Thanks yet again, -Ken

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