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1612 discussions

Reminder: SIG meeting on IRC today at 14:00 UK time
by Lars Kurth 10 Feb '15

10 Feb '15

* We hold every meeting on #centos-devel * Meetings will be minuted and IRC sessions are logged * To participate, just turn up on #centos-devel 5 minutes before the meeting and let us know you are there to participate

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Building Xen 4.4 rpms for centos7
by Pasi Kärkkäinen 10 Feb '15

10 Feb '15

Hello, Now that the Xen 4.4.1 rpms + libvirt 1.2.10 rpms for CentOS 6 seem to be in good shape it would be a good time to start experimenting with el7 builds aswell. I think it's best to start with the same set of packages we have for el6, and just do the minimum required changes to get them working on centos7. That probably means fixing some dependencies in the spec file, and some changes for systemd support. Note that all those changes are already done in Fedora 21 Xen rpms, for example: ftp://ftp.funet.fi/pub/mirrors/fedora.redhat.com/pub/fedora/linux/updates/2… A few months ago I also saw a Xen 4.4 el7 rpms port, so we could find those src.rpms aswell. And then there's the dom0 kernel.. Stock rhel7/centos7 is based on Linux 3.10 kernel, so we probably can use the exact same 3.10.63 kernel we have today for CentOS 6 Xen. Any thoughts? -- Pasi

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Re: [CentOS-virt] libguestfs-tools not working
by Richard W.M. Jones 09 Feb '15

09 Feb '15

You may be better off with the RHEL / CentOS 7.1 libguestfs packages which are available as a preview. This is a substantial rebase with many more features and somewhat faster too. Follow the instructions here: https://www.redhat.com/archives/libguestfs/2014-May/msg00090.html Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-df lists disk usage of guests without needing to install any software inside the virtual machine. Supports Linux and Windows. http://people.redhat.com/~rjones/virt-df/

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libguestfs-tools not working
by Robert Nichols 06 Feb '15

06 Feb '15

In CentOS 6 with KVM, I have libguestfs-tools installed, but the "virt-xxx" tools like "virt-df" just give, "libguestfs: error: cannot find any suitable libguestfs supermin, fixed or old-style appliance on LIBGUESTFS_PATH (search path: /usr/lib64/guestfs)". What am I missing? All the guests boot and run OK. I just can't get these tools to work. libguestfs-tools-1.20.11-11.el6.x86_64 libguestfs-tools-c-1.20.11-11.el6.x86_64 $ ls -lR /usr/lib64/guestfs /usr/lib64/guestfs: total 4 drwxr-xr-x. 2 root root 4096 Dec 3 13:16 supermin.d /usr/lib64/guestfs/supermin.d: total 7020 -rw-r--r--. 1 root root 5171200 Oct 17 11:50 base.img -rw-r--r--. 1 root root 1858048 Oct 17 11:50 daemon.img -rw-r--r--. 1 root root 139401 Oct 17 11:50 hostfiles -rw-r--r--. 1 root root 4608 Oct 17 11:50 init.img -rw-r--r--. 1 root root 2048 Oct 17 11:50 udev-rules.img -- Bob Nichols "NOSPAM" is really part of my email address. Do NOT delete it.

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Using network-script with Xen 4.4.1 (aka what will I do without xend?)
by Gene 01 Feb '15

01 Feb '15

I normally use the network-script parameter in the '/etc/xen/xend-config.sxp' configuration file to configure network bridges. However, the latest release of Xen4CentOS (which comes with Xen 4.4.1) has xend disabled by default. Can I continue to use network-script without xend? If not what is the recommended method for automatically configuring network bridges with the latest release of Xen4CentOS? I know I can just enable xend to continue using this script, but since Xen 4.5 is apparently dropping xend altogether I figure I should change my standard configuration starting now. Thanks in advance for your time. -Gene

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libvirt errors after applying RPMS from 2015:X002
by rgritzo 30 Jan '15

30 Jan '15

folks: after applying the updated rpms from advisory 2015:X002 i am having problems with libvirtd, and with virt-manager. if i run libvirtd in the foreground and look at the error messages, the error i see is 2015-01-29 04:45:27.342+0000: 6477: error : virDBusGetSystemBus:1742 : internal error: DBus support not compiled into this binary and virt-manager is unable to connect to the hypervisor. this started after i applied the subject patches. is this an issue with the recent versions of libvirt? anybody else seeing this behavior? btw - system is centos 6.6, kernel 3.10.63-11.el6.centos.alt.x86_64 thanks in advance. -- rgritzo(a)gmail.com

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Making the bi-weekly VIRT SIG call's IRC only
by Lars Kurth 27 Jan '15

27 Jan '15

Hi all, at today's call we decided to make the meetings going forward IRC only. If I don't get any objections by next Tue, I will update invites and wiki Regards Lars

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oVirt - Virt / Storage cross SIG dependencies
by Sandro Bonazzola 27 Jan '15

27 Jan '15

Hi, I've seen that gluster is now available in CentOS Storage SIG[1]. Upstream we're currently requiring to enable the gluster 3.6 repository in order to use suche storage for oVirt managed VMs. But while we're planning how to package for CentOS VIrt SIG we're interested in how to depend on inter-SIG dependencies and use gluster from within the CentOS Storage SIG instead of requiring upstream gluster repository. Do we need to require something like " Should we require centos-release-gluster[2] from something like centos-release-ovirt and then just require gluster? When is centos-release-gluster planned to land in extra? Any hint or suggestion? [1] http://lists.centos.org/pipermail/centos-devel/2015-January/012686.html [2] http://wiki.centos.org/SpecialInterestGroup/Storage/gluster-Quickstart -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

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Minutes of Jan 27 2015 VIRT SIG Meeting
by Lars Kurth 27 Jan '15

27 Jan '15

Hi all, seems we are making good progress. Thank you everyone! * First Xen release via the SIG is imminent (see Xen section) * We are also close to a Docker release (see Docker section) * We also need to look at cross-SIG dependencies to be able to make use of Gluster support in the Storage SIG (see oVirt section) Regards Lars = Attendees = * Lars Kurth * George Dunlap * Sandro Bonazzola * Lokesh Mandevar = Agenda = == Replace audio meetings in favor of IRC meetings, which seem to work better == <All agree with IRC meetings> ACTION :Send mail to list: If anyone objects, let us know. ACTION: Lars to changeg invite and wiki to reflect IRC meetings always. == Xen Update (George) == 4.4.1 Virt-Sif testing for several weeks now. Everything appears to be working Have a wiki now: covering xend to libxl migration - see http://wiki.centos.org/HowTos/Xen/Xen4QuickStart Jonny has pushed the signed packages Thus, this is the 1st Xen release from the VIRT SIG ACTION: George to send quick mail to the list and write up a blog post. CC publicity@xenproject and KB such that he can cross post to the CentOS blog if he wants to Note: 4.4.1 is still using the new old 3.10 kernel. DISCUSSION: George: do we have a conflict on kernel versions for CentOS 7. For xen we would need to override the CentOS 7 kernel to make Xen work with CentOS 7 Lokesh: there is no kernel requirement for Docker except that the kernel needs to be >= 3.10 – this should be a match George: potential issue is that Docker is officially supported in RHEL/ CentOS 7 Lokesh: 3.14 should work for Docker, but needs to be verified. George: before we push to public repo we need to test it. Lokesh: CentOS and Docker are tested with 3.10. For Fedora we test with 3.18. Docker has its own test suite. So covering 3.14 should be straightforward George: would you mind if I uploaded 3.10 and see whether it works? But there may be an issue that we would be missing RedHat backports in CentOS 7 Lokesh: Since yesterday have been doing a daily test for rawhide in addition to the stable branch. I don't think there should be an issue George: Checking understanding that a new kernel is totally OK. Lokesh: As long as we are not disabling standard kernel functionality we are fine ACTION: George upload the latest kernel and coordinate with Lokesh re testing to ensure that nothing breaks = Docker update (Lokesh) = Still on 1.4.1 Yesterday I was talking to Jim and KB re a daily rebuild for CentOS and that should be fine Maybe we will have an additional package Docker-upstream or Docker-unsupported (TBD) I have also been talking to people from Kubernetes and Cockpit re new versions. ACTION: Lokesh to make an announcements on the list(s) and then we can try and make a public release. ACTION: Lokesh to create a getting started wiki page ACTION: Lars to link to any announcements in FOSDEM VIRT SIG presentation = oVirt update (Sandro) = 3.5.1 is upstreamed and released Now we have a bit more time to investigate CBS, etc. We also have credentials for wiki and CBS Sandro: I had asked for some HowTo for CBS / Coogee by mail, which is still unresolved George: has some runes for basic stuff which he can share ACTION: George to create brief howto and share on list/wiki. One of the other issues Sandro brought up is that the Storage SIG now has Gluster support and that he would like to build oVirt with support from Gluster packages in the storage SIG. There may a requirement for QEMU and KVM packages (details needed) from that SIG. George: this will require some cross-SIG coordination that we need to resolve. At the moment we don’t have a way to cover inter-SIG dependencies ACTION: Sandro email storage SIG (via centos-devel) and virt SIG and lay out problem to kick off a discussion. Lars can try and follow up with KB and others at FOSDEM. = Any other business = None

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New Xen 4.4 and Libvirt 1.2 rpms are Live in the CentOS 6.6 Xen4 repo
by Johnny Hughes 27 Jan '15

27 Jan '15

The new Xen 4.4.1-5 and LibVirt 1.2.10-3 RPMs that were being tested via this list are now live in the main Xen4CentOS repo for CentOS-6.6: http://lists.centos.org/pipermail/centos-announce/2015-January/020904.html Thanks, Johnny Hughes

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