At Fri, 4 Dec 2015 15:11:33 -0500 xorg@lists.x.org wrote: > > I am just using the KVM included in CentOS7 with Cloudstack. > Not sure what I am missing by not including Xen but I am pretty new at it.
CentOS 5 predates KVM and used Xen for virtualization. CentOS 6 and 7 include KVM for virtualization and don't use a Xen hypervisor. You are not 'missing' anything: Xen is just the older virtualization hypervisor. > > I can not help but believe that CentOS 7 would be a better platform for > virtualization than CentOS 5. > > CentOS 7 is not too bad but it is different and it has taken me a while > to stop fighting it. I don't want to take that step until I have learned to deal with the likes of systemd, etc. I install CentOS 6 as the host and install CentOS 7 in a VM, to have a standbox to learn in, and still be able to get work done. > The changes to networking and the firewall were hard to absorb. The new > way to manage processes is still a bit of a challenge for me but I am > not spending any time on this since it works just fine. > > I run a software firewall, DNS server and virtual router which I moved > from CentOS 4 to CentOS 7 and it seems to work better but it is hard to > tell if it is the newer hardware or the new OS. This is a critical part > of the infrastructure and I am happy with the change. > The hardware was too old to run the nouveau driver properly so I am > running the NVIDIA legacy driver. Works but I am not using it as a > workstation. > > > Ron > > On 04/12/2015 12:43 PM, Robert Heller wrote: > > At Fri, 4 Dec 2015 11:42:18 -0500 xorg@lists.x.org wrote: > > > >> If you ready for some fun, CentOS 7 is out and into its third revision. > >> > >> Did I miss the discussion about the drivers from NVIDIA? I am using them > >> with new and old hardware(different machines). > >> A bit tricky to get working and there are different drivers for legacy > >> cards and newer cards. > > The drivers from NVIDIA are not supported for Xen-based systems. I am using > > Xen for virtualization, so the drivers from NVIDIA are not an option. > > Appearently the kernel and Xorg that sh > > > >> I had trouble with the nouveau driver but it may have been me or may > >> have been an early version. > > The nouveau driver is not available for CentOS 5 -- the kernel and Xorg > > libraries are too old. > > > >> CentOS 7 runs well but it does have a lot of changes to the tools that > >> one got used to in CentOS 5 and 6. > > *I* am not ready for that big a change. It would probably be too disruptive > > for my work flow. I *may* install CentOS 7 as a VM at some point. > > > >> It is supposed to be a better workstation OS. > >> > >> I am still running 5 and 6 on some production machines. > >> I am not using my units as workstations but like to have the GUI working > >> well in case I have some maintenance activities that are easier in the GUI. > >> > >> Ron > >> > >> On 04/12/2015 10:30 AM, Robert Heller wrote: > >>> At Fri, 4 Dec 2015 12:32:59 +1000 Dave Airlie <airl...@gmail.com> wrote: > >>> > >>>> On 4 December 2015 at 12:27, Robert Heller <hel...@deepsoft.com> wrote: > >>>>> At Thu, 3 Dec 2015 16:27:22 -0500 Felix Miata <mrma...@earthlink.net> > >>>>> wrote: > >>>>> > >>>>>> Robert Heller composed on 2015-12-03 16:00 (UTC-0500): > >>>>>> > >>>>>>> I use a distro with long term support. > >>>>>> Not without a price. What you have is hardware technology that is more > >>>>>> advanced than the foundation on which that support is built. A GeForce > >>>>>> 8200 > >>>>>> needs either the FOSS nouveau driver, which seems to be missing from > >>>>>> CentOS > >>>>>> 5, or the proprietary NVidia driver. VESA is a low technology fallback > >>>>>> driver > >>>>>> wholly incapable of properly supporting widescreen displays. AFAICT, > >>>>>> there's > >>>>>> no amount of xorg.conf or xrandr twiddling you can do to overcome the > >>>>>> shortcomings of a fallback driver. > >>>>> The video chipset has been working fine with the CentOS software, with > >>>>> a 4:3 > >>>>> monitor. The (available) proprietary NVidia driver won't work with a Xen > >>>>> kernel. > >>>> The graphics card BIOS contains the modes that vesa can use. It doesn't > >>>> have > >>>> widescreen modes in it. The below 3 choices are yours. > >>>> > >>>> CentOS6 should drive things better in theory. > >>> I guess I will have to upgade to CentOS 6... > >>> > >>>> Dave. > >>>>>>> *I* have better things to do than > >>>>>>> spend all of my time dealing with incompatible updates every few > >>>>>>> months. > >>>>>> You have 3 choices that I can see: > >>>>>> > >>>>>> 1-upgrade software to the technology level of your hardware (nouveau > >>>>>> driver, > >>>>>> likely requiring KMS kernel) > >>>>>> > >>>>>> 2-backlevel your video hardware (either supported gfxcard, or > >>>>>> supported 4:3 > >>>>>> or 5:4 aspect display) > >>>>>> > >>>>>> 3-suffer a standard aspect video mode on your widescreen display > >>>>> -- > >>>>> Robert Heller -- 978-544-6933 > >>>>> Deepwoods Software -- Custom Software Services > >>>>> http://www.deepsoft.com/ -- Linux Administration Services > >>>>> hel...@deepsoft.com -- Webhosting Services > >>>>> > >>>>> _______________________________________________ > >>>>> xorg@lists.x.org: X.Org support > >>>>> Archives: http://lists.freedesktop.org/archives/xorg > >>>>> Info: http://lists.x.org/mailman/listinfo/xorg > >>>>> Your subscription address: %(user_address)s > >>>> _______________________________________________ > >>>> xorg@lists.x.org: X.Org support > >>>> Archives: http://lists.freedesktop.org/archives/xorg > >>>> Info: http://lists.x.org/mailman/listinfo/xorg > >>>> Your subscription address: %(user_address)s > >>>> > >>>> > >>>> > >> > > -- Robert Heller -- 978-544-6933 Deepwoods Software -- Custom Software Services http://www.deepsoft.com/ -- Linux Administration Services hel...@deepsoft.com -- Webhosting Services _______________________________________________ xorg@lists.x.org: X.Org support Archives: http://lists.freedesktop.org/archives/xorg Info: http://lists.x.org/mailman/listinfo/xorg Your subscription address: %(user_address)s
