[Xen-devel] Re: [Xen-users] old RHEL3 domu kernel download

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Tue, Sep 27, 2011 at 04:52:51PM +1300, Peter wrote:
> On 27/09/11 08:04, Pasi Kärkkäinen wrote:
> >> On Thu, Sep 22, 2011 at 2:05 AM, Peter <peter@xxxxxxxxxxxxxxxx> wrote:
> >>> I need to port over an old RHEL3 box to a xen domU (just for a little
> >>> while until I can transfer all of its services over to a new domain).  I
> >>> was hoping to get a domU supported kernel so I can run it as a PV guest
> >>> and found this page:
> >>>
> >>> http://xen.org/download/dl_304guest_rhel3.html
> >>>
> >>> ...but the links to the actual kernels come up with 404 errors.  Anyone
> >>> know where I can get this kernel from?
> > 
> > The url mentioned above had Xen PV enabled Linux 2.4 kernel for RHEL3 
> > (based on the actual RHEL3 kernel)
> > It was developed by Xensource, back in the days.
> > 
> > It was removed because it had some known bugs, and it is unmaintained.
> 
> I think this is actually a violation of the GPL.  It was distributed so
> at least the source code has to remain available.
> 

No it's not really a GPL violation. When the binary was still available, 
also the sources were available.

People who only downloaded the binaries back then could always request 
the source by written notice, as required by GPL.

.. that's not very nice or practical though. 

I think the reason why the rhel3 pv kernel downloads were removed 
was because the kernel was so buggy and it's better if noone uses them.

> >> Another alternative is to contact Redhat. IIRC the supported
> >> configuration is to use HVM (or KVM, if your host is RHEL6), but you
> >> might be able to get PV drivers.
> >>
> > 
> > RHEL3 ships with Xen PVHVM drivers included, so install RHEL3 as Xen HVM VM,
> > and then enable the PV drivers!
> > 
> > That's the best way, and it's supported by Redhat.
> 
> I will give that a try, but I haven't had much success with HVM yet.

RHEL3 is supported (by Redhat) as HVM guest on RHEL5 dom0,
and it works.

> What I have actually ended up doing in the past is getting RHEL to work
> with a 2.6 kernel (albeit with a few bugs of its own that way).  Would
> using the (buggy) 2.4 kernel be any worse than that?
> 

Someone might still have access to the old rhel3 PV kernels,
but I don't think you should use them. RHEL3 Xen HVM with PV drivers 
is shipped and supported by Redhat.

The old rhel3 pv kernels were removed with a reason..

-- Pasi


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