Hi folks, Now that CentOS 5 is out with Xen, I can theoretically take better advantage of my nice Intel processor with the virtualization piece than I can with VMware Server. Ideally what I would like to do is install CentOS 5 as a dom0, then run my existing CentOS 4.x installation as a domU while I figure out how to do other interesting things (like install Solaris 10 and Windows as domU installations). Does anyone have any links to pages which might show me how to use Xen to run an existing, already-installed CentOS (or RedHat) under Xen as a domU? Thanks for any links or hints you might have. -- /\oo/\ / /()\ \ David Mackintosh | dave at xdroop.com | http://www.xdroop.com -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 189 bytes Desc: not available URL: <http://lists.centos.org/pipermail/centos/attachments/20070528/c25020a2/attachment.sig>
On Mon, May 28, 2007 at 11:29:03AM -0400, David Mackintosh wrote:> Hi folks, > > Now that CentOS 5 is out with Xen, I can theoretically take better > advantage of my nice Intel processor with the virtualization piece > than I can with VMware Server.You can't. Xen's fully virtualized hardware implementation isn't as fast as VMware's. Also, there are no para-virtualized drivers for HDD, lan or video for Windows, as there are in VMware.> Ideally what I would like to do is install CentOS 5 as a dom0, then > run my existing CentOS 4.x installation as a domU while I figure out > how to do other interesting things (like install Solaris 10 and > Windows as domU installations).CentOS 4 and OpenSolaris as paravirtualized will be much faster than under VMware. But Windows can only run as fully virtualized.> Does anyone have any links to pages which might show me how to use > Xen to run an existing, already-installed CentOS (or RedHat) under > Xen as a domU?yum -y install kernel-xenU :) That should create the initrd and kernel that you can then use in Xen. -- lfr 0/0 -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 189 bytes Desc: not available URL: <http://lists.centos.org/pipermail/centos/attachments/20070528/1c206ad2/attachment.sig>
hi David, David Mackintosh wrote:> Does anyone have any links to pages which might show me how to use > Xen to run an existing, already-installed CentOS (or RedHat) under > Xen as a domU?The virtualisation guide included in CentOS is a good place to start. Has most of the info you need and relevant to the tools included in the distro. -- Karanbir Singh : http://www.karan.org/ : 2522219 at icq
Luciano Rocha wrote:> You can't. Xen's fully virtualized hardware implementation isn't as fast > as VMware's. Also, there are no para-virtualized drivers for HDD, lan or > video for Windows, as there are in VMware.Do you have any details or stats on this claim that Xen's full-virt isnt as fast as VMware's ? Based on what I've seen Xen's full-virt is actually a fair bit faster than vmware. Besides para-virt on Xen is many many times more efficient than vmware's machine emulation. -- Karanbir Singh : http://www.karan.org/ : 2522219 at icq