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Re: [Fedora-xen] Re: Using large disk in DomU

On Tue, Nov 21, 2006 at 12:02:32PM +0000, Robin Bowes wrote:
> Logged as a bug:
> https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=216555
> Also see this thread on xen-devel:
> http://thread.gmane.org/gmane.comp.emulators.xen.devel/32640/focus=32640
> This changeset has been applied to fix it:
> http://xenbits.xensource.com/xen-unstable.hg?cs=0c0ef61de06b

If you want to build a new kernel RPM for testing this patch something along
the lines of the following should work.

1. Extract the patch file from mercurial

  hg clone  http://xenbits.xensource.com/xen-unstable.hg
  cd xen-unstable.hg
  hg log --patch -r 0c0ef61de06b > ~/rpm/SOURCES/large-disks.patch

2. Grab the latest  kernel  src.rpm file & install it locally

     rpm -ivh kernel-XXXXXX.src.rpm
     cd ~/rpm/SPECS

3. Edit the kenrel.spec file, incrementing release tag,

    Release: %{release}.1xen2tbtest


     Patch30000: large-disks.patch
  And in the %setup section

     %patch30000 -p1

4. Rebuild the Xen kernel for i686

    rpmbuild --target i686 --define 'buildup 0' --define 'buildsmp 0'
        --define 'buildkdump 0' -ba kernel-2.6.spec

   ..wait 30 minutes or so...

You should now have a shiny new kernel-xen RPM ready for install in Dom0/DomU

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