virt August 2010

virt@lists.fedoraproject.org

22 participants
19 discussions

Re: [fedora-virt] Routing to guests
by Robert Thiem 15 Jan '12

15 Jan '12

> From: Philip Rhoades > I can ssh from/to the host/guest OK but how do I set up a route (or > whatever is necessary) so that another machine: > eth0: 192.168.0.12 > can ssh to the guest? - "ssh 192.168.122.68" gives "no route to host" - > http://docs.fedoraproject.org/virtualization-guide/f12/en-US/html/ but > the problem does not seem to be covered there. Alexander is correct in saying that bridging would allow you to do that. There are two networking discussed in the guide. The first is a NAT (network address translation), in which the guests are given "private" ip addresses and any outbound traffic appears to be coming from the host machine's IP address. This is the same as the setup on your ADSL router where the internal network machines get addresses of 192.168.x.x but the internet sees your requests as coming from the IP address of your router. There should be lots of documentation in linux firewalling guides under sections on NAT (or possibly called IP Masquerading in some). Have a look at these for information on port forwarding to reveal services inside the virtual (such as ssh). The other option is bridging. This shares the physical network interface of the host with the guest. In this case the VM acts as though it's a machine plugged into the same subnet as the host, its services are accessible like those of the host and it's as vulnerable to attack as the host. Robert

9 13

[PATCH] memory taken by zero qemu processes should be 0
by Dan Kenigsberg 17 Sep '10

17 Sep '10

Former code behaved badly when `pgrep qemu` was empty. Thanks to lihuang of BZ#609016 --- ksmtuned | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/ksmtuned b/ksmtuned index 205ff84..d5d1494 100644 --- a/ksmtuned +++ b/ksmtuned @@ -71,8 +71,8 @@ KSMCTL () { committed_memory () { # calculate how much memory is committed to running qemu processes local progname - progname=${1:-qemu} - ps -o vsz `pgrep $progname` | awk '{ sum += $1 }; END { print sum }' + progname=${1:-qemu-kvm} + ps -C "$progname" -o rsz | awk '{ sum += $1 }; END { print sum }' } free_memory () { -- 1.7.2.1

2 3

FYI: Major version rebase of libvirt in F12, F13 in updates-testing
by Daniel P. Berrange 06 Sep '10

06 Sep '10

Normally our policy is to avoid any major version rebases of libvirt in released Fedora products, and only cherry-pick patches. The exception to this policy is when we have security updates which are not practical to backport. This is such a time. Thus we are updating the libvirt in in Fedora 12 from 0.7.1 to 0.8.2 and Fedora 13 from 0.7.7 to 0.8.2, both matching rawhide. In general we expect the quality of 0.8.2 to be fairly high, since 0.8.2 was primarily accumulated bug fixes resulting from RHEL6 testing of the 0.8.1 release. None the less, if you are able to, please take time to test these two updates and report any regressions[1]: https://admin.fedoraproject.org/updates/libvirt-0.8.2-1.fc12 https://admin.fedoraproject.org/updates/libvirt-0.8.2-1.fc13 Regards, Daniel [1] There is an expected regression with certain uses of qcow2 disks as per the update notes. -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://deltacloud.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

4 7

F14: XP install fails on KVM
by sean darcy 04 Sep '10

04 Sep '10

I'm trying to install XP with virt-manager-0.8.5-1.fc14.noarch. XP setup gets to the point of copying the files to the .img. Then I get a quick flash that I think says something like VNC lost connection with hypervisor. If I reboot from the disk, I get "Error loading operating system". If I reboot from the CD, it tells me the .img file is corrupt and needs to be reformatted. Then I'm back to my original problem. Is this the right list for this problem? If not, where do I go? sean

6 5

VM Migration
by Jóhann B. Guðmundsson 30 Aug '10

30 Aug '10

Greetings. Relatively new to virtualzation so bear with me.. Do we have somewhere good document on on how to setup virtualzation environment that supports migration. I just set up 3 blade servers for testing. I installed on all of them RHEL 6 Beta and the virtualsation packages. Created ssh keys and allow the machine to connect all to each other. Created a storage pool on SAN that is shared by all the hosts and mounted under /var/lib/libvirt/images ( default storage pool ) Created a RHEL 6 Beta test VM on one of the server with virt-manager ( 0.8.4-3.fc13 ) on F13 and that VM image is present to all blades under the default storage pool. When trying to migrate that image to one of the 2 other servers with virt-manager it fails with following error on the host it's being migrated to. libvirtd: 10:11:44.682: error : qemudDomainBlockStats:9678 : Requested operation is not valid: domain is not running libvirtd: 10:11:44.684: error : qemudDomainBlockStats:9669 : Domain not found: no domain with matching uuid 'd7aae419-ed79-12cf-3597-6a0b067eef79' libvirtd: 10:11:44.686: error : qemudDomainInterfaceStats:9741 : Domain not found: no domain with matching uuid 'd7aae419-ed79-12cf-3597-6a0b067eef79' So somewhere along the line I forgot to configure and start the domain or is this a bug or compatibility issue with virt-manager-0.8.4-3.fc13 and RHEL 6 ? JBG

1 0

[Xen-devel] Xen 4.0.1 released
by Pasi Kärkkäinen 25 Aug '10

25 Aug '10

----- Forwarded message from Keir Fraser <keir.fraser(a)eu.citrix.com> ----- From: Keir Fraser <keir.fraser(a)eu.citrix.com> To: "xen-devel(a)lists.xensource.com" <xen-devel(a)lists.xensource.com>, xen-users(a)lists.xensource.com Cc: Date: Wed, 25 Aug 2010 09:32:12 +0100 Subject: [Xen-devel] Xen 4.0.1 released Folks, RELEASE-4.0.1 has been tagged in http://xenbits.xen.org/xen-4.0-testing.hg Browsing the above URL will show the mercurial changelog contains many many bug fixes since 4.0.0. We recommend all users to upgrade. A source tarball will soon be available from http://www.xen.org/products/xen_source.html -- Keir _______________________________________________ Xen-devel mailing list Xen-devel(a)lists.xensource.com http://lists.xensource.com/xen-devel ----- End forwarded message -----

2 2

ANNOUNCE: virt-manager 0.8.5 and virtinst 0.500.4
by Cole Robinson 24 Aug '10

24 Aug '10

I'm happy to announce two new releases: virt-manager 0.8.5: virt-manager is a desktop application for managing KVM and Xen virtual machines via libvirt. virtinst 0.500.4: virtinst is a collection of command line tools for provisioning libvirt virtual machines, including virt-install and virt-clone. The releases can be downloaded from: http://virt-manager.org/download.html The direct download links are: http://virt-manager.org/download/sources/virt-manager/virt-manager-0.8.5.ta… http://virt-manager.org/download/sources/virtinst/virtinst-0.500.4.tar.gz The virt-manager release includes: - Improved save/restore support - Option to view and change disk cache mode - Configurable VNC keygrab sequence (Michal Novotny) The virtinst release includes: - New virt-install --console option for specifying virtio console device - New virt-install --channel option for specifying guest communication channel - New virt-install --boot option. Allows setting post-install boot order, direct kernel/initrd boot, and enabling boot device menu. - New virt-install --initrd-inject option, which enables installation using a _local_ kickstart file (Colin Walters) Thanks to everyone who has contributed to this release through testing, bug reporting, submitting patches, and otherwise sending in feedback! Thanks, Cole

1 0

exporting a vm image
by Kenneth Armstrong 23 Aug '10

23 Aug '10

What is the cleanest approach to export a vm (disk image along with associated xml file) to an external media, then re-importing that vm back into virt-manager? Some combination of virt-create with --import and virt-convert? I've got some test vm's that I made clones of, and I would like to back them up to an external source and reimport them at a later time should I need to. Thanks.

2 2

porting a disk from lvm to file
by Gianluca Cecchi 22 Aug '10

22 Aug '10

Hello, I have a virtio disk for a vm that consists of an lvm. I would like to port this vm disk to another virtualization host that has vm disks on file, instead. Can I port this lvm vm-disk to file, for example with something like: dd if=/dev/vgname/lvname of=/directory_tree/filename and then copy "filename" to the other host and use it as a backing storage for a vm on it? Do I have perhaps to consider some heading for lvm metadata and skip anything form the dd command? Anyone already done/considered? Thanks, Gianluca

6 8

spice vga option in virt-manager for F13 virt-preview?
by Gianluca Cecchi 19 Aug '10

19 Aug '10

Hello, being in fc13 and installing today the virt-preview repo packages, I was hoping to get qxl vga device available as option in virt-manager too. In fact I see that qemu has been updated to 0.13 version from pre-existing 0.12 in stock FC13. Correct? or if I want to test spice I have to run from command line my guests? In this case which interaction with pre-existing ones managed by virt-manager? BTW, if merge in virt-manager of virt-preview repo is planned for qxl vga, should I "simply" see the option when I try to modify hw for a previous gest (aka created in FC13 0.12 qemu) or should I have to change virtual hw in xml file for the guest or in other files? Thanks in advance, Gianluca

3 2

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

virt August 2010