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[libvirt-users] LIBVIRT migration
by Marcela Castro León 04 Apr '11

04 Apr '11

Hello I''m developing a system using libvirt and I need to use "migrate" to move guest to different hosts. I'm testing using a cluster connected by ssh, and I'm connect ok trought them, using virsh and virt-manager. But if I try to migrate doing: *virsh # migrate --live scompi1 qemu+ssh://rionegro/system* I got: *error: monitor socket did not show up.: Connection refused* I've try using the virt-manager, but troughs: *Unable to migrate guest: Traceback (most recent call last): File "/usr/share/virt-manager/**virtManager/migrate.py", line 453, in _async_migrate vm.migrate(dstconn, migrate_uri, rate, live, secure) File "/usr/share/virt-manager/**virtManager/domain.py", line 230, in migrate self._backend.migrate(**destconn.vmm, flags, newname, interface, rate) File "/usr/lib/python2.6/dist-**packages/libvirt.py", line 429, in migrate if ret is None:raise libvirtError('**virDomainMigrate() failed', dom=self) libvirtError: monitor socket did not show up.: Connection refused* Someone can help me? Thank you very much. Marcela.

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[libvirt-users] bridge and route without IP
by Robert Šmol 01 Apr '11

01 Apr '11

Hi, I want to forward all traffic received on eth1 into virtual domain 'firewall' (where I want to configure public IP+shorewall) I've created following network: node002 qemu # cat networks/int-001.xml <network> <name>int-001</name> <bridge name="intbr0" /> <forward mode="route" device="eth1"/> </network> virsh # net-create networks/int-001.xml error: Failed to create network from networks/int-001.xml error: internal error Forwarding requested, but no IP address provided But wan to set the public IP on the Firewall side. How do I do that? Would the macvtap help me? Regards, Robert -- stereoIT - Open Source Technology Partners http://www.stereoit.com mobile: +420 776 762378

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[libvirt-users] Using Restore
by Marcela Castro León 01 Apr '11

01 Apr '11

Hello: I'm developing a fault tolerance system, and I'm trying to use save/restore operation. But it's working fine when I restore the file saved on the same guest, but If I move it to another host, and then try to restore using the file previously saved I got this error. I ask for help to know if this kind of operation is allows, and if it is, how can I do to work it. The exactly sequence using virsh I've test is: On [HOST1]: Using virsh 1) save [domain] [file] 2) restore file 3) destroy [domain] On [HOST1] using ubuntu sh 4) cp [guest.img] [guest.xml] [file] to HOST2 On [HOST2] using virsh 5) define [guest.xml] (using image on destination in HOST2) 6) restore [file] The restore troughs the following message: *virsh # restore sv-chubut-2011-04-01-09:58 error: Failed to restore domain from sv-chubut-2011-04-01-09:58 error: monitor socket did not show up.: Connection refused* Thank you very much. Marcela.

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[libvirt-users] ANNOUNCE: oz 0.3.0 release
by Chris Lalancette 31 Mar '11

31 Mar '11

All, I'm pleased to announce release 0.3.0 of Oz. Oz is a program for doing automated installation of guest operating systems with limited input from the user. Release 0.3.0 is mostly a bugfix release for Oz. However, there are also a few minor features included as well. Some of the highlights between Oz 0.2.0 and 0.3.0 are: - Add the ability to specify the output directory for screenshots (the default is still CWD). - Add the ability to specify the bridge to use for installs (the default is still the first libvirt NAT bridge on the system). - Nicer error messages from the command-line tools when debugging is off. - Add the ability to install Debian 5 and 6. - Detect servers that can't possibly work for installing RedHat/Fedora OSs, and fail the install. - Allow installs with spaces in the name. - Add the ability to install OpenSUSE 11.4. More documentation on Oz is available here: http://aeolusproject.org/oz.html If you have any questions or comments about oz, please feel free to contact aeolus-devel(a)fedorahosted.org or me (clalance(a)redhat.com) directly. Thanks, -- Chris Lalancette

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[libvirt-users] ESX networking functions
by James Barkley 31 Mar '11

31 Mar '11

Greeetings, Using the latest git snapshot I noticed that none of the networking functions are implemented in the ESX driver. No listing networks, no adding networks, etc. This functionality seems to be fully implemented for most of the other drivers and I don't see it on the "todo" wiki. Does anyone have an idea if/when this might get implemented? Would others be interested if I were to add it and submit it as a patch? -jb

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[libvirt-users] How to disconnect the ISO image using virsh
by Masanari Iida 31 Mar '11

31 Mar '11

Hello, I can attach disc ISO image to cd-rom from virsh. And I can replace the ISO image from disc1 to disc2 using the 2nd example. (example) attach-disk guest01 /root/disc1.iso hdc --driver file --type cdrom --mode readonly attach-disk guest01 /root/disc2.iso hdc --driver file --type cdrom --mode readonly My question is, how can I disconnect the image from the cdrom drive using virsh. Because, if I try to detach-disk hdc, I got following errors. virsh # detach-disk guest01 hdc error: Failed to detach disk error: this function is not supported by the connection driver: This type of device cannot be hot unplugged What I can do is possible from virt-manager's "Disconnect" button, (next to source path: line) from Hardware's TAB, Disk hdc screen. I want to do this from virsh. OS: RHEL5.6 libvirt-0.8.2-15.el5_6.1 is used. Regards, Masanari Iida

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[libvirt-users] block migration
by mkey 30 Mar '11

30 Mar '11

Hello, I'm trying to use block migration with below procedure, but got some errors. I would highly appreciate if anyone give me a hand.. There are 2 hosts(hostA and hostB), both OS is Ubuntu 10.10(merverick). And a VM(named centos54-1mg) is running at hostA(centos54 64bit). [package version] +++-=====================-=====================-=================== ii kvm 1:84+dfsg-0ubuntu16+0 dummy transitional ii libvirt-bin 0.8.8-1ubuntu3~ppamav the programs for ii qemu-common 0.14.0~rc1+noroms-0ub qemu common ii qemu-kvm 0.14.0~rc1+noroms-0ub Full virtualization [proceduere] root@hostA:~# /etc/init.d/apparmor teardown root@hostA:~# stop libvirt-bin && start libvirt-bin root@hostB:~# /etc/init.d/apparmor teardown root@hostB:~# stop libvirt-bin && start libvirt-bin root@hostB:~# touch /tmp/centos54-1mg.img root@hostB:~# chown -R libvirt-qemu:kvm /tmp/centos54-1mg.img root@hostA:~# virsh migrate --live --copy-storage-all --p2p --direct centos54-1mg qemu+tcp://hostB/system [NOTE] 1. What I was being careful is permission. Therefore, apparmor is off, libvirt is running as root. 2. normal live migration is successfully finished. So, libvirtd can communicate between hostA and hostB. 3. Regarding to options "--live --copy-storage-all --p2p --direct", I think --copy-storage-all is minimum, so I was trying to change pairs of options, but no good result. The error logs and configuration at hostB are attached. Thanks in advance mkey

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[libvirt-users] Invitation to connect on LinkedIn
by Kadir Yuceer 30 Mar '11

30 Mar '11

LinkedIn ------------ I'd like to add you to my professional network on LinkedIn. - Kadir Kadir Yuceer Software Developer at Atos Consulting Turkey Confirm that you know Kadir Yuceer https://www.linkedin.com/e/qej7u0-glw6ia58-71/isd/2602897787/y-Avz2HO/ -- (c) 2011, LinkedIn Corporation

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[libvirt-users] Event Types Libvirt can handle
by kadir yüceer 30 Mar '11

30 Mar '11

Hello all, I'm trying to observe access events of guest VMs. However, as far as I understand event types in libvirt are really generic, like domain defined/undefined, started/stopped, etc. Isn't there any specific event types that libvirt can handle (like access to a disk), or I'm missing them? Thanks in advance Kind regards Kadir

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[libvirt-users] stage of data upload/download patch
by James Barkley 28 Mar '11

28 Mar '11

Hey all, I'm looking at ways to upload/download to/from a datastore. I see it is on the todo roadmap wiki (http://libvirt.org/todo.html) and also on bugzilla at https://bugzilla.redhat.com/show_bug.cgi?id=636130. It looks to be a low priority item, so I was thinking about writing my own patch for this when I ran across this thread http://comments.gmane.org/gmane.comp.emulators.libvirt/35532. It looks like a patch going through discussion/revision for a variety of operations (e.g., vol-upload) to do exactly what I need. Does anyone have more info on the status of this patch (or the "todo" feature in general) and when it may be accepted into the baseline? I've been checking the hourly snapshots but haven't seen it show up yet. -jb

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