Doesn't centos 5 include xen? Wouldn't that be faster then VMware server? Russ Sent wirelessly via BlackBerry from T-Mobile. -----Original Message----- From: Warren Young <warren at etr-usa.com> Date: Thu, 17 May 2007 13:56:13 To:CentOS mailing list <centos at centos.org> Subject: Re: [CentOS] Is it possible/advisable to run CentOS 4.4 and 5.0 on the same box Mark Hull-Richter wrote: > We are in the process of transiting from 4.4 to 5.0 and I may need to > be able to switch back and forth for a while. Is it possible (or > advisable) to run both 4.4 and 5.0 on the same machine, or does that > involve a lot of reinstalling/repartitioning and a fair amount of pain > (I have only one disk on the test machine for this purpose). If it's just for the purpose of supporting software, I'd use some kind of virtualization and put 4.x in a VM hosted by 5.x. The only time you need a real machine (instead of a VM) is when you have some hardware level requirement. I use VMware's free VMware Server to keep many Linuxen around, which I need so I can build RPMs for each of the many platforms we have in the field. Once you have a VM solution set up, you find that you then create still more VMs for testing and so on. It's liberating. _______________________________________________ CentOS mailing list CentOS at centos.org http://lists.centos.org/mailman/listinfo/centos