On Mon, Nov 06, 2006 at 03:13:28PM -0500, Kanwar Ranbir Sandhu wrote: > On Mon, 2006-11-06 at 09:19 -0700, Karl Stevens wrote: > > > Here's what one of my domUs looks like: > > > kernel = "/boot/vmlinuz-2.6.17-1.2174_FC5xenU" > > > > This is probably why: you're using FC5, not FC6. FC6 does away with > > separate dom0 and domU kernels. > > I should have mentioned that my dom0 is a FC5 box. I haven't moved it > over to FC6 for fear of not having any bootable domUs. Though, it would > be just as easy to go back to FC5 if that happened. For x86_64 life is easy - FC5 & FC6 are compatible with each others Xen guests. For i686 though things are troublesome. The original xen0 & xenU kernels from FC5 are non-PAE. The xen kernel in FC6 meanwhile is PAE only. You can't mix & match PAE with non-PAE between host & guest. Thus to allow people to mix FC5 & FC6 the more recent kernel errata for FC5 also contain a PAE enabled kernel -xen which can be used instead of the old -xen0 & -xenU > > > I forgot to mention that running RH7.3 as a paravirtualized domU won't > > > work since the Xen 3.0 series doesn't have support for the 2.4 kernels > > > > Sorry to correct you, but xensource.com has a domU kernel for RHEL 3 > > (which runs 2.4) > > I didn't know that! Well, that's certainly helpful. But, what if one > is running a RHEL 4? Or some other distro that has a 2.6 kernel? If you're using x86_64 then you shouldn't have any trouble using DomU kernels from any other xen-ified distro. For i686 just make sure you get the PAE stuff matched up correctly. WRT to RHEL-4, a future errata will provide an officially supported Xen guest kernel for the 2.6.9 tree that is in RHEL-4. > > I downloaded and used this kernel, and it works (solved my problem.) I > > would have rather done things the "Red Hat endorsed" way, but I'm just > > happy I've got it running. Given the age of the RHEL-3 kernel & the stage RHEL-3 is at in its product support lifecycle, it is not practical to provide an officially supported paravirt guest kernel. So either using xensource's unofficial 2.4 backport is one option, or using fully-virt HVM for the regular RHEL-3 kernel is another more supportable option. Regards, Dan. -- |=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=| |=- Perl modules: http://search.cpan.org/~danberr/ -=| |=- Projects: http://freshmeat.net/~danielpb/ -=| |=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=| -- Fedora-xen mailing list Fedora-xen@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-xen
