[Zope] cannot pack ZODB

[duchier@ps.uni-sb.de]

I am still a newbie and today I tried to pack my ZODB, but that's not
working.  Turning debugging on doesn't help much:

2003-07-31T15:18:36 ERROR(200) ZODB packing
Traceback (innermost last):
  File /usr/share/zope/zope-2.6.1/lib/python/ZODB/DB.py, line 499, in pack
  File /usr/share/zope/zope-2.6.1/lib/python/ZODB/FileStorage.py, line 1496=
, in pack
    (Object: /var/lib/zope/zope-2_6_1/var/Data.fs)
IOError: [Errno 13] Permission denied: '/var/lib/zope/zope-2_6_1/var/Data.f=
s'

How is it possible that I can edit my ZODB just fine (through plone),
but I cannot pack it?  Apparently, it fails on attempting to open
Data.fs for reading (i.e. file=3Dopen(name, 'rb')).  The file is owned
by user zope and group zope-2_6_1, with rw permissions for both.

Any ideas? I am stumped!

--=20
Denys Duchier - =C9quipe Calligramme - LORIA, Nancy, France