- Users - libvirt List Archives

[libvirt-users] Connect libvirt to iSCSI target
by Marco 30 Dec '13

30 Dec '13

Hi! I'm new to libvirt and face problems connecting to an iSCSI target. What I intend to do is to connect libvirt (I tried virt-manager and virsh) to an iSCSI target and then boot from the LUNs which contain the VMs. I followed the documentation¹ but got stuck at section 12.1.5.4.3. 1) virsh pool-define-as \ --name foo \ --type iscsi \ --source-host vmhost \ --source-dev iqn.2013-11.vmhost:vmpool \ --target /dev/disk/by-path 2) virsh pool-start foo error: Failed to start pool foo error: internal error: cannot find session virsh -c qemu:///system pool-start foo error: Failed to start pool foo error: internal error: cannot find session Why can't libvirt find the session, and which session? Running iscsiadm --mode discovery --type sendtargets --portal vmhost:3260,1 succeeds and lists the targets. How to connect libvirt to the iSCSI target? System info: Debian sid, Linux 3.11-2-amd64 libvirtd (libvirt) 1.1.4 virsh version: 1.1.4 iSCSI target: FreeNAS-9.1.1 Best regards Marco ¹ https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux…

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[libvirt-users] how to use openConsole and openGraphics
by yue 28 Dec '13

28 Dec '13

hi,all 1.how to use openConsole and openGraphics? 2.what is the theory of that? thanks

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[libvirt-users] fail to live migration is related to virtio-console
by yue 27 Dec '13

27 Dec '13

hi,all this error occured when live migration windows os, log of that vm is: features 0x1e unsupported allowed features 0x71000002 qemu warning error while loading state for instance 0x0 of device '0000:00:04.4/virtio-console' do you have some idea about that? thanks

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[libvirt-users] Reg: Methods in DomainJobInfo
by Rathidevi 27 Dec '13

27 Dec '13

Hi All, I am new to libvirt. Please explain about the units (which is bytes or KB or MB) and uses of DomainJobInfo and DomainBlockInfo methods. Like getMemRemaining(), getDataRemaining() etc. Using libvirt version is libvirt-0.5.1. Thank you Regards, Rathidevi

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[libvirt-users] Live migration without block copy
by Paul Mathews 24 Dec '13

24 Dec '13

Hello all, I'm trying to get live migration without block copying working in a custom solution, but I think I need a better understanding of the migration process. In my environment, I have two iscsi targets exported which are then placed into a raid via mdadm on the compute node. I've tried using the already exposed hook on stop to disassemble and re-export storage, and I also made my own when the source hits perform3_done phase, but at that point the md device is still locked. It seems like there should be a time in a live migration where both instances are in a paused state and everything has been flushed to disk, I'm just not familiar enough with the code to determine where that is. -Paul

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[libvirt-users] man page
by Fl＠sh 23 Dec '13

23 Dec '13

It seems to me that the man page is not complete. Personally, I had to read the code to understand. Propose to amend paragraph of included files on: -i GUEST-PATH=HOST-PATH, --include GUEST-PATH=HOST-PATH File (HOST-PATH) to copy into custom dir (GUEST-PATH). -I HOST-PATH, --includefile=HOST-PATH Copy all files listed in inputfile into the appropriate temporary sandbox directories. File should contain a line like: GUEST-PATH=HOST-PATH Directory (or subdirectory) of GUEST-PATH path must to exist in the guest filesystem (use --mount) Maybe I misunderstood how to use inclusion, but it says even more about what leadership should be written in detail. P.S. On the use of the network too. -- F1ash

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[libvirt-users] Virsh console stops accepting inputs
by Satvinder Gunsi 23 Dec '13

23 Dec '13

Hello All, I am trying following steps: 1. Untar a gzip image 2. virsh create NAME.xml ( for the image) 3. virsh console NAME The above steps are done for four times on different files. In step 3 above for one out of four VMs (usually the first one), when I try to login:, typing the first letter of password brings me back to "login:" prompt. Then for the next four tries "each" letter moves me from "login" to "password:" and back to "login:" I also see following error in libvirtd.log for each console login attempt. 25446: error : daemonStreamHandleAbort:609 : stream aborted at client request My libvirt version is: libvirtd (libvirt) 1.0.2 OS: FC16 Important: If I destroy the VM and bring it up again, then I donot see this issue and am able to successfully login. Can somebody help in resolving this issue. Thanks in advance, Regards, Satvinder

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[libvirt-users] How to attach USB disk to specified USB controller in domian?
by Jianwei Hu 23 Dec '13

23 Dec '13

Hi guys, I want to attach a few USB disks to specified USB controller in domain on libvirt layer, but I didn't find any method to deal with it. Anyone can help me on that? I added some USB type disk to my domain, started it, I found all USB disk had been attached to same USB controller automatically, I want to assign some USB disks to another controller manually but I can't find the entry. qemu-kvm has provided command line to support it by using "bus" argument.(like: device_add usb-storage,id=my_usb_disk,drive=my_usb_disk,bus=usb.0 ) Action steps: 1. Add some USB disks to domain xml, <disk type='file' device='disk'> <driver name='qemu' type='raw'/> <source file='/var/lib/libvirt/images/usb-img/usb-1.img'/> <target dev='sda' bus='usb'/> <alias name='usb-disk0'/> </disk> <disk type='file' device='disk'> <driver name='qemu' type='raw'/> <source file='/var/lib/libvirt/images/usb-img/usb-2.img'/> <target dev='sdb' bus='usb'/> <alias name='usb-disk1'/> </disk> ... 2. Added more than 2 USB controller to domain xml <controller type='usb' index='0'> <alias name='usb0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/> </controller> <controller type='usb' index='1'> <alias name='usb1'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/> </controller> <controller type='usb' index='2'> <alias name='usb2'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/> </controller> <controller type='usb' index='3'> <alias name='usb3'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/> </controller> 3. Enter into guest OS to check those usb device [root@localhost ~]# lsusb -t /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M |__ Port 1: Dev 2, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 2: Dev 3, If 0, Class=Hub, Driver=hub/8p, 12M |__ Port 1: Dev 4, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 2: Dev 5, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 3: Dev 6, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 4: Dev 7, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 5: Dev 8, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 6: Dev 9, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 7: Dev 10, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 8: Dev 11, If 0, Class=Hub, Driver=hub/8p, 12M |__ Port 1: Dev 12, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 2: Dev 13, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 3: Dev 14, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 4: Dev 15, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 5: Dev 16, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 6: Dev 17, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 7: Dev 18, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 8: Dev 19, If 0, Class=Hub, Driver=hub/8p, 12M |__ Port 1: Dev 20, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 2: Dev 21, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 3: Dev 22, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 4: Dev 23, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 5: Dev 24, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 6: Dev 25, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 7: Dev 26, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 8: Dev 27, If 0, Class=Hub, Driver=hub/8p, 12M |__ Port 1: Dev 28, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 2: Dev 29, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 3: Dev 30, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 4: Dev 31, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 5: Dev 32, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 6: Dev 33, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 7: Dev 34, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 8: Dev 35, If 0, Class=Hub, Driver=hub/8p, 12M |__ Port 1: Dev 36, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 2: Dev 37, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 3: Dev 38, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 4: Dev 39, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 5: Dev 40, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 6: Dev 41, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 7: Dev 42, If 0, Class=Mass Storage, Driver=usb-storage, 12M |__ Port 8: Dev 43, If 0, Class=Mass Storage, Driver=usb-storage, 12M /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M [root@localhost ~]# BR, Jianwei

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[libvirt-users] assign static external IP to container
by scar 23 Dec '13

23 Dec '13

hello i have a server colocated in a datacenter with several external IP addresses available to use. the physical server is using one of these IPs, and i want to assign another, unused IP to the virtual machine. i thought i could just do this by editing the container's /etc/network/interfaces, setting a static IP address for eth0 much like i did for br0 on the host machine.... but doesn't seem to be working. ifconfig shows eth0 has the external address but i can't resolve any hostnames nor telnet to a direct IP address (no route to host). if i change back to dhcp and let eth0 get an internal address, i can at least access the internet but cannot access the virtual machine from the internet. what is the trick to giving a VM a routable, external IP address? thanks

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[libvirt-users] blockcopy for libvirt and version compatibility
by Mark Trinh 20 Dec '13

20 Dec '13

I'm currently running: virsh --version 1.0.2 libvirtd --version libvirtd (libvirt) 1.0.2 I have a couple questions. 1. Can I upgrade my libvirt.so version to use with an older libvirtd? In other words, does the versions of libvirt and libvirtd need to be in lock step? 2. I'm able to use virsh blockcopy, but I want to do it programmatically via C. I looked through the API and was not able to see any references to that. I did see mention of virDomainBlockCopy on the TIP of the git repository, but no other references to it. How do I run virsh blockcopy via a C function?

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