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1608 discussions

CentOS 5.3 in VMWare Fusion
by Jason Todd Slack-Moehrle 24 Apr '09

24 Apr '09

Hi All, I am trying to run CentOS 5.3-x86_64 in a Vmware Fusion virtual machine on my Mac Pri (10.5.6) My install starts OK, checks media and then I get a message saying "The CentOS CD was not found in any of your CDROM drives. Please insert the CentOS CD and press OK to retry". I have booted from the media though, so I don't understand... Any thoughts? -Jason

3 3

Xen virtual machines management
by Mindaugas Riauba 23 Apr '09

23 Apr '09

Hello, What do you use to manage virtual Xen machines? Nothing complex though preferably. :) I've already converted some servers for a Xen dom0 and starting to loose the picture - which VM runs where and how much resources left on each server. Regards, Mindaugas

3 4

virsh can not connect, but virt-manager does
by Ljubomir Ljubojevic 22 Apr '09

22 Apr '09

Hi, i am having problems with virsh utility. I have installed 3 KVM virtual OS-es on top of CentOS 5.3 i386 (with kernel 2.6.18-92.1.22.el5.centos.plus from 5.2, necessary on AMD/ATI MB I have). I have compiled KVM modules from lfarkash-es sorce rpm's and libvirt and managers are recompiled from Fedoras repositories. Problem is following: Guests are installed with virt-manager and whenever I start him I can start and login to guest. on virt-manager's GUI says it connects to "qemu:///system" on localhost. when I try to use virsh with: [drlove@vmaster ~]$ virsh --connect qemu:///system error: failed to connect to the hypervisor same is with root user. It seams I have leftovers from few versions (just find out), I will see to they I reinstalled: [root@vmaster ~]# rpm -qa *kvm* kvm-tools-83-5 etherboot-roms-kvm-5.4.4-8 kvm-kmod-debuginfo-83-1 kmod-kvm-83-1 kvm-83-5 kmod-kvm-84-1.el5 [root@vmaster ~]# , but since virt-manager is working this should not cause this problem. I saw this: http://www.linux-kvm.org/page/Running_libvirt_with_KVM where it says to create symlink for /usr/bin/kvm but they point to X86_64 file and I have i386 kernel. I hope someone can help me. Any output you need, just say, i am experienced with linux. Ljubomir

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Creating a new bridge with new eth
by dist-list＠lexum.org 21 Apr '09

21 Apr '09

Hello, I am using eth0 as my xen management interface. There will no VM connected to the interface. I read a lot of articule about adding a interface and create a new bridge. Some add a ip address to the new interface some don't. Do I really need a IP on all interfaces ? Tx

2 1

kernel-vm - humble request
by John Thomas 03 Apr '09

03 Apr '09

Look, I pay nothing for an incredible operating system with enormous features and stability, so it feels a bit awkward asking for more. [Sarcasm On] Now, get going and build me up a 5.3 kernel-vm's would ya? ;) [Sarcasm Off} -- Humbly, John Thomas

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Backing up a running KVM guest
by Julian Price 27 Mar '09

27 Mar '09

Hello This new HowTo explains how to backup a VM without powering it down. It's specifically aimed at KVM although it may work with any virtualization software that uses Linux as the host. Please review it and let me know what you think, particularly if you are already doing something similar yourself, or would like to. Do you have answers to any of the questions in the 'Questions' section? It has not been released yet and it's a first draft, so break it to me gently... http://wiki.centos.org/HowTos/BackupKVMGuest (The article's internal Wiki links are broken - not sure what's going on there, but ignore that) A taster... 1. Introduction This article explains how to backup a virtual hard disk to a remote location, even while it is use. One advantage of running software in a virtual machine is that the entire disk can be backed up in one go, including Operating System, software, configuration files, registry, permissions, data and all. Re-establishing a system after a failure is therefore quicker and more reliable than re-installing software and restoring data. The method employs LVM to take a snapshot of the guest disk and then uses rsync to update changes to a previous backup on a remote server. If there is a database server on the guest then it is flushed & locked at the point the snapshot is taken. This method came into use around 2008 following wider availability and awareness of virtualization software, cheaper faster network bandwidth, and cheaper bigger disks. ... Thanks, Julian

3 6

Tips for installing Fedora 10 32bit Xen PV domU/guest on CentOS 5.3 dom0/host
by Pasi Kärkkäinen 24 Mar '09

24 Mar '09

Hello! Xen and related packages (libvirt, virt-install, virt-manager etc) in Upcoming CentOS 5.3 support running and installing Fedora 10 (and Fedora 11) paravirtual domU guest virtual machines. These upstream fixes (new features) make it possible: "RHEL5.3 xen: include support for booting Fedora 10 DomU (i.e. bzImage support)" https://bugzilla.redhat.com/show_bug.cgi?id=457199 "update virtinst to install f10 xen guests" https://bugzilla.redhat.com/show_bug.cgi?id=460585 But beware there's a bug in 32bit x86 Fedora 10 installer (anaconda). It installs wrong kernel to the domU (it should install kernel-PAE but it installs normal kernel), and that will prevent the domU from starting after installation. Xen only supports PAE kernels for 32bit PV guests. It's this bug: "anaconda installs the wrong kernel for i686 xen guests" https://bugzilla.redhat.com/show_bug.cgi?id=470905 It can be "fixed" by using a kickstart file for installation, which forces installation of kernel-PAE instead of normal kernel. Example of such kickstart: http://pasik.reaktio.net/fedora/f10-xen-domu-ks.cfg Fedora 11 (current rawhide of 2009-03-24) does not have that bug anymore, so paravirtual F11 Xen PV domU installation should work out-of-the-box. I've tested and verified all the above works. Hopefully that helps someone :) -- Pasi

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Re: [CentOS-virt] ConVirt 1.0 released
by jd 23 Mar '09

23 Mar '09

Yes. /Jd --- On Sun, 3/22/09, Hristo Benev <foxb(a)abv.bg> wrote: > From: Hristo Benev <foxb(a)abv.bg> > Subject: Re: [CentOS-virt] ConVirt 1.0 released > To: centos-virt(a)centos.org > Date: Sunday, March 22, 2009, 5:20 AM > > > >Message: 1 > >Date: Fri, 20 Mar 2009 11:04:39 -0700 (PDT) > >From: jd > >Subject: [CentOS-virt] ConVirt 1.0 released. > >To: centos-virt(a)centos.org > >Message-ID: > >Content-Type: text/plain; charset=us-ascii > > > > > >hi > > Just wanted to bring to your > attention the release of ConVirt 1.0. > > http://www.convirture.com/blog/2009/announcements/convirt-goes-10/ > > > >/Jd > > > > > > > > Is that an open source tool? > > >From first look on the site i have the impression that > it is paid tool?! > > _______________________________________________ > CentOS-virt mailing list > CentOS-virt(a)centos.org > http://lists.centos.org/mailman/listinfo/centos-virt >

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Re: [CentOS-virt] ConVirt 1.0 released
by Hristo Benev 22 Mar '09

22 Mar '09

> >Message: 1 >Date: Fri, 20 Mar 2009 11:04:39 -0700 (PDT) >From: jd >Subject: [CentOS-virt] ConVirt 1.0 released. >To: centos-virt(a)centos.org >Message-ID: >Content-Type: text/plain; charset=us-ascii > > >hi > Just wanted to bring to your attention the release of ConVirt 1.0. > http://www.convirture.com/blog/2009/announcements/convirt-goes-10/ > >/Jd > > > Is that an open source tool? >From first look on the site i have the impression that it is paid tool?!

1 0

ConVirt 1.0 released.
by jd 20 Mar '09

20 Mar '09

hi Just wanted to bring to your attention the release of ConVirt 1.0. http://www.convirture.com/blog/2009/announcements/convirt-goes-10/ /Jd

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