Re: [Xen-users] Howto compiling Xen 3.2 on Debian/Ubuntu (was: Compiling Xen-3.2.0)

[Kalle <kalle@xxxxxxxxxxx>]

Hi,

I had similar experiences when I was installing 3.2.0 to Debian 
Lenny/Etch.
On Thu, 24 Jan 2008, Jeremie Le Hen wrote:

> Hi,
>
> I finally carried out "make world" with Xen 3.2 after much struggle.
> The problems occured in the kernel part of the world.
I newer got 'make world' run succesfully.
Problem was that it can't download the kernel using mercurial.
Lenny and Etch both saffered this issue.

> First, contrary to xen-3.1.0-src.tgz, xen-3.2.0.tar.gz doesn't come
> along with the linux-2.6-xen-sparse/ and patches/ directories which
> allow to build a xen-infied kernel from a vanilla kernel source.
> Therefore it is impossible to use "make world XEN_LINUX_SOURCE=tarball".
That's shame, because I really would have those patches.
Other way would be that someone has documents about the ne "architecture".

> One must use Mercurial to fetch the xen-ified kernel from Xensource
> Mercurial repository, but it seems that the current Mercurial version
> shipped with Debian/Ubuntu is outdated and cannot be used out-of-the-box
> to download the xenified kernel source tree automatically during make
> world.
Yep!
> It is necessary, at least from my own understanding, to "make
> prep-kernels" in order to create the kernel build directory.  Indeed if
> you put your .config file directory into the kernel tree, the kernel's
> build system will complain about its cleanliness and will ask you to run
> "make mrproper".  The reason is that the kernel is not built directly in
> the source tree -- as most of people used to do -- but instead uses a
> separate directory to store produced object files, thus the assumption
> about the cleanliness.
>
> So I devised with the following process to build Xen 3.2.
> % mkdir build
> % wget http://bits.xensource.com/oss-xen/release/3.2.0/xen-3.2.0.tar.gz
> % tar xzf xen-3.2.0.tar.gz
> % # Download the xenifid kernel tree manually, but NOT in xen-3.2.0/
> % # because the buildconfig/select-repository script would skip it.
> % # ! xen-3.2.0/ and linux-2.6.18-xen.hg/ must be at the same level !
> % hg clone http://xenbits.xensource.com/linux-2.6.18-xen.hg
> % cd xen-3.2.0
> % make prep-kernels
> % cp /boot/config-2.6.18-my build-linux-2.6.18-xen_x86_32/.config
> % make dist

This is almoust same way I go.

- Instead of 'make prep-kernels' I used 'make linux-2.6-xen-config 
CONFIGMODE=menuconfig'
 -> Make little changes to kernel for my needs.

- And instead of 'make dist' I used 'make linux-2.6-xen-build'

- After that i did 'make install' but if I remember correctly i needed 
todo Grub's menu.lst, initrd and copy vmlinuz and modules to right 
places by myself.
I still would like to know that is there any patches available.
Or is the only way to go mercurial?

How does this new "system" works?
I supposed that 'linux-2.6.18-xen.hg' ships with already patched?
Cos i don't see any patching happening when do 'make anything'

Regards,
Kalle

> Hope this will help.
> Regards,
> --
> Jeremie Le Hen
> < jeremie at le-hen dot org >< ttz at chchile dot org >
>
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