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1608 discussions

Video resolution for CentOS guest
by Robert Nichols 25 Feb '15

25 Feb '15

Would someone please point me to some reasonably current instructions for getting greater than 1024x768 video resolution for a CentOS 6 guest on a CentOS 6 KVM/qemu host? When I search online I find stuff from 2009 and 2010 saying, "For details see ...," and linking to a URL that no longer exists, or pages that say, "You need to switch from VNC to Spice," and giving a long list of out-of-date instructions for doing so. (With virt-manager it takes 2 clicks to do that. Of course it doesn't help -- still maxes out at 1024x768.) I've found that I can just append "vga=0x380" to the kernel command line and see Plymouth come up with the full graphical boot screen in the correct 1440x900 resolution, but as soon as gdm starts up, the display scrambles. I find suggestions to generate an xorg.conf file, but no mention of what to put in it. I can run "Xorg -configure", but the resulting file contains nothing about video modes, so it's not apparent what needs to be added. I find it particularly annoying that a Windows 7 guest can set any resolution I want up to 2560x1600, but a Linux guest can't go higher than 1024x768. -- Bob Nichols "NOSPAM" is really part of my email address. Do NOT delete it.

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Reminder: CentOS Virt SIG IRC meeting on #centos-devel at 14:00 UK time today
by Lars Kurth 24 Feb '15

24 Feb '15

See http://wiki.centos.org/SpecialInterestGroup/Virtualization <http://wiki.centos.org/SpecialInterestGroup/Virtualization>

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oVirt gaps for Virtualization SIG
by Sandro Bonazzola 18 Feb '15

18 Feb '15

Hi, following up to CentOS Virt SIG meeting here is a quick review of the gaps we have for porting ovirt within CentOS Koji. On the manager side, in order to properly build ovirt-engine (the main package in oVirt project) we're missing several pre-requisites. We're relying on a binary packaging of jboss-as 7.1 we ship as ovirt-engine-jboss-as. So first step should be to rebuild Fedora 19 JBoss rpms within CentOS 7. We're also using maven for building ovirt-engine. A proper packaging for using koji as build system requires to re-package ovirt-engine following fedora guidelines [1]. Issue here is that we're missing lot of maven dependencies like google GWT not yet packaged in Fedora and also other dependencies available in Fedora but not in CentOS 7 like: apache-sshd >= 0.11.0 checkstyle >= 5.4 dbunit >= 2.4.8 infinispan >= 5.2.5 javapackages-local jboss-modules >= 1.1.1 maven-checkstyle-plugin >= 2.9.1 maven-jaxb2-plugin >= 0.8.1 maven-processor-plugin >= 1.3.7 openstack-java-client >= 3.0.6 openstack-java-glance-client >= 3.0.6 openstack-java-keystone-client >= 3.0.6 openstack-java-quantum-client >= 3.0.6 openstack-java-resteasy-connector >= 3.0.6 powermock-junit4 >= 1.5 quartz >= 2.1.2 snmp4j >= 2.2.2 spring-ldap >= 1.3.1 springframework-test >= 3.1.1 On the host side we've been able to build everything in koji. Some dependencies have been rebuilt from EPEL but other than that we should be fine[2]. Only blocker we have on this is qemu-kvm-rhev, we discussed about the rhev suffix during the meeting and we haven't reached an agreement yet within oVirt on how to handle it. [1] https://bugzilla.redhat.com/show_bug.cgi?id=1168605 [2] http://wiki.centos.org/SpecialInterestGroup/Virtualization/Roadmap -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

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"docker-master" package: daily builds of docker master branch
by Lokesh Mandvekar 16 Feb '15

16 Feb '15

Daily builds of docker master branch are available in the virt SIG repository as package 'docker-master': http://cbs.centos.org/koji/buildinfo?buildID=690 Should mostly work fine though use it AT YOUR OWN RISK. If you'd prefer to use something stable, you could choose between the RHEL-recompiled 'docker' package available in centos-extras and the 'docker' package available in the virt SIG repository. Feedback/comments/bugs/patches welcome. -- Lokesh Freenode, OFTC: lsm5 GitHub: @lsm5 GPG: 0xC7C3A0DD

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Re: [CentOS-virt] docker 1.5 in virt7-testing
by Lokesh Mandvekar 13 Feb '15

13 Feb '15

On Fri, Feb 13, 2015 at 12:15:39PM +0000, Karanbir Singh wrote: > hi guys, > > docker 1.5 is now in virt7-testing repos, please test and feedback so we > can move to release.. > > thanks lokesh! > > - KB > Sure thing KB. Also, docker-registry will be ready for release by tonight (meaning working package and docs etc.) docker HEAD for c7 ------------------ I was hoping for wider feedback on daily rebuilds of docker master branch for c7 (which I already do for fedora rawhide), under a new package name (docker-unstable / docker-head / whatever). IIRC, KB and jperrin were for it. How does that sound to others? Or should I go ahead with this already? :) Thanks! -- Lokesh Freenode, OFTC: lsm5 GitHub: @lsm5 GPG: 0xC7C3A0DD

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etcd and kubernetes on virt7-testing
by Lokesh Mandvekar 13 Feb '15

13 Feb '15

I've rebuilt the latest kubernetes and etcd sources (from fedora rawhide) for c7. Builds are available on CBS and in the virt7-testing repo. kubernetes: https://cbs.centos.org/koji/taskinfo?taskID=7113 etcd: http://cbs.centos.org/koji/buildinfo?buildID=689 Please try them out and let me know if you see any issues. Thanks! -- Lokesh Freenode, OFTC: lsm5 GitHub: @lsm5 GPG: 0xC7C3A0DD

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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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