local koji server - packages repository

[Doug Reiland]

I am seeing my builds fail where it knows to pull a previous rpm
locally because it has already built it.
For example, I built kernel.

Now I try to build zlib, and from mock's root.log:

 xz-lzma-compat         i686    4.999.9-0.2.beta.20091007git.fc12  build   15 k
DEBUG util.py:256:   zlib                   i686    1.2.3-23.fc12
                build   69 k
DEBUG util.py:256:  Transaction Summary
DEBUG util.py:256:
================================================================================
DEBUG util.py:256:  Install     102 Package(s)
DEBUG util.py:256:  Upgrade       0 Package(s)
DEBUG util.py:256:  Total download size: 78 M
DEBUG util.py:256:
http://localhost/koji/packages/kernel/2.6.31.5/127.fc12/i386/kernel-headers-2.6.31.5-127.fc12.i386.rpm:
[Errno 14] HTTP Error 403 :
http://localhost/koji/packages/kernel/2.6.31.5/127.fc12/i386/kernel-headers-2.6.31.5-127.fc12.i386.rpm
DEBUG util.py:256:  Trying other mirror.
DEBUG util.py:256:  Error Downloading Packages:
DEBUG util.py:256:    kernel-headers-2.6.31.5-127.fc12.i386: failed to
retrieve kernel-headers-2.6.31.5-127.fc12.i386.rpm from build
DEBUG util.py:256:  error was [Errno 14] HTTP Error 403 :
http://localhost/koji/packages/kernel/2.6.31.5/127.fc12/i386/kernel-headers-2.6.31.5-127.fc12.i386.rpm
DEBUG util.py:319:  Child returncode was: 1

I am confused about where this is coming from and if koji serves those
web pages:
My directory is /mnt/koji
>From kojid/kojid.conf: pkgurl=http://localhost/koji/packages

>From /etc/httpd/conf.d/kojiweb.conf:
PythonOption KojiPackagesURL http://localhost/mnt/koji/packages

Any ideas?