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[libvirt-users] need help on libvirt and virt manager
by Muhammad Yousuf Khan 04 Apr '14

04 Apr '14

Hello every one. i have been running Libvirt for few weeks on testing and will be migrating from Proxmox to libvirt very soon however there is a problem with command line learning. Virsh and virt-install is a complete set of commands. but i want to learn in depth some more command line option. so my question is; can i learn what "Virt-manager" GuI is running on the back end. so that i can learn how it add,edit,delete some advance level of configuration via GUI. i mean like we have "history" command which show what have we run in past so can i also have the details what Virt-manager has run remotely Thanks, MYK

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[libvirt-users] set keep alive
by Fl＠sh 03 Apr '14

03 Apr '14

Can anyone explain what is happening. After call virConnectOpen virEventRegisterDefaultImpl() call virConnectSetKeepAlive returns VirtError(1): internal error: the caller doesn't support keepalive protocol; perhaps it's missing event loop implementation, but the next call this sequence of commands returns success. Why virConnectSetKeepAlive not work right the first time? -- Fl@sh

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[libvirt-users] libvirt live migrate problem
by lyz_pro 02 Apr '14

02 Apr '14

Hi The problem is after I successful live migrate a domain, the domain os become read-only. and when I use qemu-img to show the disk info at node which domain current running , the command return 'Permission denied'. BUT, I can use qemu-img show the disk info at the previous node. My Env: two node, all install libvirt + kvm . use glusterfs as shared storage. the libvirt/kvm version: libvirt-0.10.2-29.el6_5.5.x86_64 qemu-kvm-0.12.1.2-2.415.el6_5.6.x86_64 qemu-img-0.12.1.2-2.415.el6_5.6.x86_64 glusterfs-3.4.1-3.el6.x86_64 -------------- lyz_pro 2014-04-02

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[libvirt-users] ebtables rules are not applied when using libvirt nwfilter
by Thinh Nguyen 02 Apr '14

02 Apr '14

Dear all, I configure my kvm vm like this: <interface type='bridge'> <mac address='52:54:00:dd:b2:c5'/> <source bridge='nw-vpc-1017'/> <target dev='if-57'/> <model type='virtio'/> <filterref filter='clean-traffic'> <parameter name='IP' value='10.0.0.1'/> </filterref> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> </interface> But when i start it and show the ebtables rules, nothing is applied [root@kvmhost ~]# ebtables -L Bridge table: filter Bridge chain: INPUT, entries: 0, policy: ACCEPT Bridge chain: FORWARD, entries: 0, policy: ACCEPT Bridge chain: OUTPUT, entries: 0, policy: ACCEPT Bridge chain: libvirt_qemu_FORWARD, entries: 0, policy: DROP Please show me what wrong i've done. Thanks so much! -- Nguyen Thinh

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[libvirt-users] Advice request for building a centralized vm disk provider server
by Pasquale Dir 02 Apr '14

02 Apr '14

Hello again, sorry for mailing in so short time but I have another question about live migration. >From redhat documentation I see that the storage for a VM which has to be migrated has to be shared throught some mechanism and I have chosen iscsi. Anyway I now would need a way to dinamically create a new virtual machine and so a virtual hard disk, note that this vm will have to be migrated too. I though about this solution: I would share an HUGE iscsi target, this target is a logical hard drive containing many disk images which would be the VM's hard drives. I can easily clone a vm by making a simple file copy of a vm disk. This would allow me to create a VM by specifying a path like <iscsi target path>/disk1.img. I have two problems: 1)how to get an unique <iscsi target path>? On my phisical host it is mounted as a random uuid in the /media folder. 2)will migration work with a <file> instead of a <device> as hard disk field? If you have any better solution, even involing the change from iscsi to another technology, you are free to propose it to me. Sorry for bothering, Pasquale

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[libvirt-users] Async migration: possible?
by Pasquale Dir 02 Apr '14

02 Apr '14

I am seeing that migrate() function is blocking, isn't there a non blocking function with a callback associated to it, so to report events like end migration, migration progress (job domain info informations) and so on? Pasquale

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[libvirt-users] Ask for help about bug 1058149
by Qiang Guan 01 Apr '14

01 Apr '14

On Mar 31, 2014 at 21:23PM, Martin Kletzander wrote: > On Thu, Mar 27, 2014 at 10:07:43AM +0800, Qiang Guan wrote: >> Hi Martin, >> >> Is there any plan to fix the libvirt bug 1058149 which I reproduced on >> the libvirt master branch? >> > > Hi, > > Sorry for such late response, I'm currently busy working on whole > different part of the codebase. I'll try to see what I can do, but > you can always try asking on the list. Is there some version you were > not able to reproduce it on? > > Martin I've succeeded reproducing this problem on v1.1.4-maint ,v1.2.1-maint, v1.2.2 and the master branch. It seems that the problem always exsisted for libvirt under my testing scene. -- ------------ Jackie Best Regards

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[libvirt-users] Programmatically force shutdown a guest: possible?
by Pasquale Dir 01 Apr '14

01 Apr '14

I am looking at the shutdown method, but if the guest system is a desktop system, like for example ubuntu, it just has the effect to show a box prompting the user for a shutdown/reboot/ and such. I could enter the guest and change this default behaviour and it actually works..but I'd like for a way to send a shutdown command without doing so. Is it possible?

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[libvirt-users] Connecting libvirt to manually compiled QEMU
by Asadullah Hussain 31 Mar '14

31 Mar '14

Hello I have manually compiled a customized qemu (1.4.0) which runs fine on its own (create VM etc) but I want to access this qemu through libvirt (virt-manager, virsh etc). But the libvirt driver only looks into "/usr/bin" for qemu binaries, how can I tell libvirt to connect to my qemu which is placed at "/home/user/qemu" directory. -- Asadullah Hussain

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[libvirt-users] Specify a disk image file which is on an iscsi target
by Pasquale Dir 31 Mar '14

31 Mar '14

Hello, for my vm I'd like to specify a disk image which would be on an iscsi target. Currently, by using targets directly, I'd just specify the path in /dev/disk/by-path/ip-192.168.1.2:3260-iscsi-iqn.myiqn but how to specify a file which is actually INSIDE this path, ex. /dev/disk/by-path/ip-192.168.1.2:3260-iscsi-iqn.myiqn/myVmImage.img ? I saw that there is another path in /media/myHomeUser/anId but do this id changes each time?

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