[Zope] ZODB and packing problem

[Yann COMBARNOUS]

Hi,

Well, I'm quite new to Zope, however this seems to be quite strange to
me. When trying to pack the database, I get the following error (zope
installed from source by root and run by root through start script):

Error Type: IOError
Error Value: [Errno 13] Permission denied:
'/usr/local/zope-2.1.6/var/Data.fs'

Traceback (innermost last):
  File /usr/local/zope-2.1.6/lib/python/ZPublisher/Publish.py, line 214,
in publish_module
  File /usr/local/zope-2.1.6/lib/python/ZPublisher/Publish.py, line 179,
in publish
  File /usr/local/zope-2.1.6/lib/python/Zope/__init__.py, line 202, in
zpublisher_exception_hook
    (Object: Fake)
  File /usr/local/zope-2.1.6/lib/python/ZPublisher/Publish.py, line 165,
in publish
  File /usr/local/zope-2.1.6/lib/python/ZPublisher/mapply.py, line 160,
in mapply
    (Object: manage_pack)
  File /usr/local/zope-2.1.6/lib/python/ZPublisher/Publish.py, line 102,
in call_object
    (Object: manage_pack)
  File /usr/local/zope-2.1.6/lib/python/App/ApplicationManager.py, line
338, in manage_pack
    (Object: ElementWithAttributes)
  File /usr/local/zope-2.1.6/lib/python/ZODB/DB.py, line 522, in pack
  File /usr/local/zope-2.1.6/lib/python/ZODB/FileStorage.py, line 883,
in pack
    (Object: /usr/local/zope-2.1.6/var/Data.fs)
IOError: (see above)

of course, I logged in as superuser, but I can't understand what's
wrong.
any idea?

--
Yann COMBARNOUS
E-mail: yann.combarnous@enst-bretagne.fr