Re: [Xen-devel] [PATCH] disable kernel build in Xen build system / Xen dom0 kernel versions

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Tue, Sep 21, 2010 at 05:30:18PM +0100, Stefano Stabellini wrote:
> On Fri, 10 Sep 2010, Pasi K??rkk??inen wrote:
> > On Fri, Sep 10, 2010 at 01:57:41PM +0200, Olaf Hering wrote:
> > > On Fri, Sep 10, George Dunlap wrote:
> > > 
> > > > I think it's a good idea for the Xen build system not to include a
> > > > dom0 kernel.  However, it's not very clear to a newcomer how to
> > > > actually get a kernel.  The xen.org download page has no links at all
> > > > to anything kernel-related.  There is a page on the wiki:
> > > > 
> > > >  http://wiki.xensource.com/xenwiki/XenDom0Kernels
> > > > 
> > > > However, the list is gigantic -- extremely intimidating.  And there's
> > > > no generic version of the "classic" kernel; they're all branded XCP,
> > > > XCI, Novell, &c.
> > > > 
> > > > I think the Right Thing to do (given an ideal world), until pvops dom0
> > > > gets sufficiently upstreamed, is for xen.org to maintain two stable
> > > > releases: a reasonably stable pvops branch for the more adventurous,
> > > > and a classic xen port for the more conservative.
> > > 
> > > George,
> > > 
> > > I second that. The first time I looked at this page all it caused was
> > > confusion. It gives the impression of "there is no upstream". If we
> > > could get some sort of reference where all the fixes go, that would help
> > > alot.
> > > I would help out with maintaining such a tree.
> > > 
> > 
> > Yeah, the XenDom0Kernels wiki page has gotten pretty unclear.
> > 
> > I guess for users, at the moment, the two 'main' kernels that
> > are maintained and bugfixed by xen.org are:
> > 
> > - pvops xen/stable-2.6.32.x
> > - xenlinux xcp/xenserver 2.6.32.x 
> > 
> > I can try to clear up the wiki page if we can agree on what to write there 
> > :)
> > 
> 
> I gave a look at the page and I think it is still too verbose for
> newcomers.
> A detailed explanation of the current situation is fine, but above that
> we need two simple lines with a link.
> 

Yep, I didn't have time to fix the page yet :)


> I propose something like this:
> 
> ---
> 
> ***Xen dom0 kernels Quick Start***
> If you don't know exactly what a dom0 kernel is, read the detailed
> explanation below.
> If you want to install the Xen hypervisor for production use but your
> distro doesn't provide a dom0 kernel, just grab one of the latest
> "XenLinux" port here:
> 
> - Citrix XenServer / XCP Linux 2.6.32 kernel (source and tarball link)
> 
> - Novell SLES11 Linux 2.6.32 Xen kernel (source and tarball link)
> 
> ---
> 
> We definitely need to provide both a source tree and a source tarball
> for each option; ideally we should provide a deb/rpm too.
> 

Indeed.

-- Pasi



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