Re: [Xen-users] Kernel Headers for Xen Kernel

[Olaf Grewe <olaf@xxxxxxxxx>]

Hi Marcus,

Thanks for taking the time to go through the post. Regarding your 
remarks:
I´m using stable, mainly because a while ago a post came round that 
hiding PCI devices from dom0 isn´t working at the moment.
The manpage gives both targets (kernel_headers, kernel-headers) as 
valid.
Tried to toy around with the subarch - no luck.

No luck either exporting ARCH=xen.

When you start using make-kpkg, maybe the following observations might 
help: Installing the kernel-package that make-kpkg generated failed to 
update grub´s menu.lst. The kernel is also named such that it won´t be 
recognized by grub-update. As I don´t have physical access to the 
machine I´m using, I haven´t tried the new kernel yet. However I used 
it to boot a domU and that worked just fine.
Again, thanks for looking into it, I´d be interested to see how your 
make-kpkg experience turns out.
        Olaf

On Aug 2, 2005, at 3:32 AM, Marcus Brown wrote:

> Hi Olaf,
>
> Olaf wrote:
>
> > Hi,
> >
> > My apologies for posting this question on this list but I figured that
> > the Debian aficionados on this list might be more familiar with the
> > issue than the general Debian user. As for the question itself, it
> > most likely will attest more to my lack of knowledge than any issue
> > with Xen.
> >
> > Ok, here we go: How do I generate the source header files for a
> > 2.6.11 kernel patched with Xen 2.0.6?
> >
> > Some background: I´m trying to compile a few special modules (ibmsmb,
> > for the IBM Director Agent, and zaphfc, for HFC-based ISDN cards, in
> > case anyone is interested) and their Makefiles assume the presence of
> > kernel source header files in case they are build against a 2.6
> > kernel. That is, some meaningful code in /lib/modules/`uname
> > -r`/build/include/linux...
> >
> > I´m using the unstable packages kernel-source-2.6.11 and the
> > kernel-patch-xen to generate the source tree. I also copied the
> > .config from the xen0 directory created when downloading the xen 2.0.6
> > source distribution. Trying to build a kernel package using
> >
> > make-kpkg --added patches=xen --config=menuconfig --arch=xen
> > --subarch=xen --revision=xenserver.0.1 kernel-image
> >
> > works just fine (but I should admit that I haven´t tried that kernel)
> > and generates a Debian kernel package in /usr/src. However trying the
> > same with
> >
> > make-kpkg --added patches=xen --config=menuconfig --arch=xen
> > --subarch=xen --revision=xenserver.0.1 kernel-image kernel_headers
> >
> > still generates only the kernel-package.
> >
> > Doing just a
> >
> > make-kpkg kernel_headers
> >
> > is successful in creating a kernel-headers package but I´m wondering
> > if that´s then for the right architecture.
> >
> > At this point I´m well willing to do away with the luxury of Debian
> > packages if only I could compile the darn modules. Hence the broad
> > question about _any_ way to generate the header files. If there´s a
> > neat way to generate a Debian package, that would be to good to be
> > true. I should also mention that I´d appreciate any not so subtle hint
> > what I´m missing here.
> >
> > Thanks in advance
> >     Olaf
> I've been using Debian for my Xen, but I'm afraid I haven't played with
> the idea of making packages yet.
> The way I've been doing it is
>     - download and unpack the xen branch of choice (currently using
> testing),
>     - install the appropriate kernel source using apt-get (ie.
> Debianised kernel source)
>     - copy the source file into /usr/src/xen
>     - do a 'make dist'
>     - cd to ./linux-2.6.xx-domU and do a 'make ARCH=xen menuconfig'
>     - repeat 'make dist'
>     - copy kernel/modules/... from ./dist/install/ to destination
>
> There's probably a proper way of doing it, but this works for me. I
> actually use a
> number of different kernels depending on the task of the domU, so I've
> modified
> the KERNEL statement in my Makefile and added extra make scripts in
> ./buildconfigs
> for each kernel.
>
> Once I get my new Xen-based server going (I've decided the old one is
> too inefficient
> with both drive space and ram, etc) I too will be looking into 
> make-kpkg
> to simplify (?)
> upgrades and maintenance.
>
> I'm not sure why your headers don't build, but perhaps you could try:
>     - kernel-headers instead of kernel_headers? (stab in dark:))
>     - remove the subarch stanza? (necessary?)
>     - export ARCH as an environment variable before make?
>     - OK, I've got no idea :)
>
> Marcus.
>
>
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> http://lists.xensource.com/xen-users

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