- Users - libvirt List Archives

[libvirt-users] How much ways can libvirt connect to a qemu instance?
by 何鑫 13 Aug '12

13 Aug '12

Hi, Could you give me some advices about how to connect libvirt to a Qemu instance?

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[libvirt-users] Does Libvirt-0.8.8(windows) support URI like qemu+ssh on windows?
by xuanmao_001 13 Aug '12

13 Aug '12

Hi, I have ssh2.exe and ssh-keygen2 tools on my windows which as parts of "SSH Secure Shell for Workstations Windows Client", and they work well. Now I want to know if libvirt support URI like qemu+ssh on windows? Give me some ideas. thanks xuanmao_001

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[libvirt-users] virsh dump
by Harish Patil 11 Aug '12

11 Aug '12

Hi I have both host and KVM/QEMU guest VM running linux. Questions: What are the constituents of the virsh dump? - What all areas does it dumps? - Is it same as taking guest VM's core dump via kexec/kdump? - Does it include QEMU's info to debug qemu-level issues? Thanks much in advance. >harish

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[libvirt-users] virDomainMigrate() leads to SASL error
by Olivier Doucet 10 Aug '12

10 Aug '12

Hello, I'm trying to use virDomainMigrate() function through libvirt-php but I have this error coming from libvirt (this is an error raised by virDomainMigrate(), not by php binding) : Failed to step SASL negotiation: -7 (SASL(-7): invalid parameter supplied: Unexpectedly missing a prompt result) My two connections are over TCP with login/password provided (URL is qemu+tcp://X.X.X.X/system) Connection to both hosts independently is working (listing domains, etc.) Migration through virsh is working too ! On destination host, I have this in log file : 2012-08-09 14:29:23.628+0000: 17179: error : virNetSocketReadWire:1003 : End of file while reading data: Input/output error Can someone tell me if I'm doing anything wrong ? Thanks ! Olivier

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[libvirt-users] error deploying a vm: Operation not permitted
by Michael Rebstock 10 Aug '12

10 Aug '12

Dear Ladies and Gentleman, I am trying to deploy a virtual machine on a KVM host. I created a deployment file (see beneath) and a disk for this VM. As root I executed the following command: virsh create deployment.0 but then I get the following error message: error: Failed to create domain from deployment.0 error: cannot set ownership on /var/lib/one/datastores/0/15/disk.0: Operation not permitted What am I doing wrong? Thanks in advance. Best regards Michael Rebstock ######################### Content of the deployment file: <domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'> <name>one-15</name> <memory>2097152</memory> <os> <type arch='i686'>hvm</type> <boot dev='hd'/> </os> <devices> <emulator>/usr/bin/kvm</emulator> <disk type='file' device='disk'> <source file='/var/lib/one/datastores/0/15/disk.0'/> <target dev='hda' bus='ide'/> <driver name='qemu' type='raw' cache='default'/> </disk> <interface type='bridge'> <source bridge='319er-vlan'/> <mac address='22:00:c0:ba:2a:64'/> </interface> </devices> <features> <acpi/> </features> </domain>

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[libvirt-users] libvirtd may need to be started: Permission denied
by 何鑫 10 Aug '12

10 Aug '12

Hi, I try to configure libvirtd to use qemu+tcp, but after doing so, I can't use virsh or programs with libvirt API. I type "virsh -c qemu:///system", then error: unable to connect to '/var/run/libvirt/libvirt-sock', libvirtd may need to be started: Permission deniederror: failed to connect to the hypervisor I could add "sudo" to "virsh -c qemu:///system", running virsh with "qemu:///system" normally, but it's not suitable for my requests. Also I try to restart or reinstall libvirt-bin in Ubuntu, also failed. Could you give me some idea? Thanks a lot! RegardsCorey

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[libvirt-users] Remote Shutdown of Server 2008
by Gutierrez-Robles, Frank 10 Aug '12

10 Aug '12

Good afternoon, I have a VM of Microsoft Server 2008 SP1. I am using virsh commands to power it on/off. I can power on/off when the admin is logged in to the Server VM, and when there are no users logged in, but when the admin locks the screen, I cannot seem to power it off. The virsh command states that the domain is being shutdown, but it in fact does not. I looked at some registry settings for the VM (server 2008) and see if I can pinpoint an entry I need to set, but had no luck. Any ideas? Thank you for your support. - Frank G.

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[libvirt-users] [libvirt] virDomainMemoryStats call
by Parakkal, Navin S 10 Aug '12

10 Aug '12

Hi, Is the array mstats returned by virDomainMemoryStats call cummulative or snapshot of the counter at that particular time ? I was of the opinion that is cummulative like the /proc counters but this counter seems to go backwards ie next snapshot value is less than the current one which makes me think these are snapshot values . I'm using RHEL 6.3 libvirt version 0.9.10. Regards, Navin

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[libvirt-users] migration with non-root user
by Yih Chuang 09 Aug '12

09 Aug '12

Hi, I had a VM running on c3rh2 under 'vmc' user: [vmc@c3rh2 .ssh]$ virsh list --all Id Name State ---------------------------------------------------- 1 vs2relocate_nonRoot running After the virsh migration command, "virsh migrate --live --unsafe vs2relocate_nonRoot qemu+ssh://vmc@c3rh1.kirkland.ibm.com/session", this VM successfully got migrated to the target host c3rh1. However, it was not visible to 'vmc' user but 'root'. [vmc@c3rh1 .ssh]$ virsh list --all Id Name State ---------------------------------------------------- [vmc@c3rh1 .ssh]$ sudo virsh list --all Id Name State ---------------------------------------------------- 1 vs2relocate_nonRoot running * The libvirt version is libvirt-0.9.10-21.el6_3.1.x86_64 on both hosts. Anything I may have missied? Thanks, --Yih

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[libvirt-users] How the libvirtd connect to qemud in source codes?
by 何鑫 08 Aug '12

08 Aug '12

Hi, I meet a question when reading the libvirt source codes. Could you help me? Coz I plan to link libvirt to a Android Emulator based on QEMU, knowing how the libvirtd connect to qemud is important. I trace the code as following: libvirtd.c contains all the initilization of libvirt daemon, then calling function named qemuRegister to qemu_driver.c which contains three methods:int qemuRegister(void) { virRegisterDriver(&qemuDriver); virRegisterStateDriver(&qemuStateDriver); virNWFilterRegisterCallbackDriver(&qemuCallbackDriver); return 0; } In qemuDriver, I find a function --qemudOpen which, I guess, contains the method what I want. But I failed to find right messages. Could you please give me some tips? I guess there has got to contain related interfaces to connect between libvirt and qemu. Thanks a lot!

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