Re: [Xen-devel] Re: xenning gentoo

["Eric S. Johansson" <esj@xxxxxxxxxx>]

Eric S. Johansson wrote:
> finally got back to trying to build xen on gentoo using the 2.0.1 ebuild:
>
> > http://bugs.gentoo.org/show_bug.cgi?id=70161)
>
> unfortunately, it can't find the xen tarball and, quite frankly, I'm not 
> sure where to put all the other pieces and whether or not I need to 
> build manifest etc. etc.
> its beginning to look like it might be easier to just build everything 
> from raw bits and reinstall xen anytime I do an update via emerge.
couldn't bring myself to the things the raw bits way so I decided to go 
from zero knowledge on ebuilds to some knowledge.
this is what I've learned so far (yes, some of this is ebuild 101):

understand the directory hierarchy of an ebuild input files and the 
right place.  This means the  *.ebuild and Manifest are in the "top" 
directory of that particular ebuild and all datafiles go in "files".
get all the files local and into the /usr/portage/distfiles and 
directory.  The new tarballs for xen and xen-sources are placed into 
/usr/portage/distfiles by hand just to make things easier.
don't be afraid to hack the hardcoded version numbers in your ebuilds 
like xen-sources-2.6.9.ebuild.  and sometimes, just sometimes it really 
is a question of the knowing when to give up. ;-)
xeno xen-sources # ACCEPT_KEYWORDS="~x86" emerge -v xen-sources
Calculating dependencies ...done!
>>> emerge (1 of 1) sys-kernel/xen-sources-2.6.9 to /
>>> md5 src_uri ;-) linux-2.6.9.tar.bz2
>>> md5 src_uri ;-) xen-2.0.1-src.tgz
>>> Unpacking source...
>>> Unpacking linux-2.6.9.tar.bz2 to 
/var/tmp/portage/xen-sources-2.6.9/work
>>> Unpacking xen-2.0.1-src.tgz to /var/tmp/portage/xen-sources-2.6.9/work
patching file 
/var/tmp/portage/xen-sources-2.6.9/work/linux-2.6.9-xen0/drivers/xen/blkfront/blkfront.c
Reversed (or previously applied) patch detected!  Assume -R? [n] y
Hunk #1 succeeded at 103 (offset 1 line).
Hunk #2 FAILED at 138.
Hunk #3 succeeded at 467 (offset -1 lines).
Hunk #4 succeeded at 1008 (offset -1 lines).
1 out of 4 hunks FAILED -- saving rejects to file 
/var/tmp/portage/xen-sources-2.6.9/work/linux-2.6.9-xen0/drivers/xen/blkfront/blkfront.c.rej


--
http://www.salon.com/books/review/2004/12/18/heloise/index.html

The basis of Abelard's philosophy, which he taught to Heloise, was
that logic had to be applied to religion in order to arrive at the
truth.


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