RE: [Xen-ia64-devel] RE: [elilo-discuss] a patch to make elilo loadanother module

["Magenheimer, Dan (HP Labs Fort Collins)" <dan.magenheimer@xxxxxx>]

I got some help from a local Red Hat guru and got to
the next step... the modified elilo fails with:

Loading xen....done
Loading initrd xenlinux...done
initrd.c(line 77):Failed to allocate 318 pages for initrd
Start of netboot failed: Load Error

> -----Original Message-----
> From: Magenheimer, Dan (HP Labs Fort Collins) 
> Sent: Friday, August 26, 2005 4:14 PM
> To: 'Yang, Fred'; Xu, Anthony
> Cc: xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
> Subject: RE: [Xen-ia64-devel] RE: [elilo-discuss] a patch to 
> make elilo loadanother module
> 
> Finally got a chance to look at this.  There were a typos
> of problems in the README script:
> 
> - rpc2cpio -> rpm2cpio
> - remove "patch -p2 < elilo-initrd-size-fix.patch"
> 
> The resulting source got a couple of gcc errors
> with find_label having too few arguments.  I added
> module_name as the last argument (two places) and
> it compiled.
> 
> However, I realize I don't know how to build a RHEL4
> kernel (with Xen mods) and initrd that will successfully
> boot a RHEL4 system (e.g. with LVM in the initrd?)!
> I assume you have done it so far on VTI with an
> unmodified RHEL4 kernel?  Unless you can provide a
> recipe for this, I will look into how to do it...
> 
> Also, I think Anthony had an update for the Xen hypervisor
> patch (with the complicated arithmetic with constants
> put in a macro)?
> 
> Dan
> 
> > -----Original Message-----
> > From: Yang, Fred [mailto:fred.yang@xxxxxxxxx] 
> > Sent: Thursday, August 11, 2005 10:29 PM
> > To: Magenheimer, Dan (HP Labs Fort Collins); Xu, Anthony
> > Cc: xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
> > Subject: RE: [Xen-ia64-devel] RE: [elilo-discuss] a patch to 
> > make elilo loadanother module
> > 
> > Magenheimer, Dan (HP Labs Fort Collins) wrote:
> > > Great!  I would be happy to try out a preliminary
> > > version of these instructions... Last Friday, I managed
> > > to trash one disk on my test machine and partially trash
> > > another, both running RHEL3.2.  Rather than reinstall 3.2
> > > and then install RHEL4 a few days later, I will just
> > > wait and go straight to RHEL4.
> > Attached is a Knowhow to create elilo patch for loading 
> > kernel as module, as well as Xen patch for Vti.
> > Please note this patches are only a tempory patches, we will 
> > come out yet another patch in a couple days.
> > Current kernel input can only be unzipped image.  The next 
> > patch will make "module" as the deafult linux kernel and do 
> > the corrsponding unzip within elilo.  The system.h patch will 
> > be surrounded with "#ifdef CONFG_Xen".  Xen patch will also 
> > include non-VT-I patch code (but without validation due to 
> > target linux issue :()
> > -Fred
> > 
> 

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