[Setup] Problem migrating from Plone 2.05 to 3.1.7 (resent)

Steve McMahon steve at dcn.org
Sat Nov 22 18:20:00 UTC 2008

An error on global_defines does *not* indicate corruption in your
ZODB. In fact, it indicates that you're able to read the ZODB -- or
you'd get a very different error.

The migration of data in the object database is done via
portal_migrations in the ZMI. The procedure is documented at:


Migrating from 2.05 all the way to 3.x is going to be real work. Be
patient and ask the community for advice. The plone.org/documentation
help center and plone-users list are probably your best community

On Fri, Nov 21, 2008 at 10:50 PM, aprati <pratiandrea at gmail.com> wrote:
> Hi there,
> I'm really in trouble, pls help. I've recently updated a very old (but often
> used) site in which Plone 2.0.5 had been installed. Data.fs file was 2.5 GB!
> Anyway, I finally decided to update Plone to the latest version, but I was
> not aware of the correct procedure, so I installed the 3.1.7 by using the
> Windows installer (the PC has Windows Server 2003). The problem is that the
> plone 3.1.7 cannot read the Data.fs. It gave me an error on global_defines.
> I spent some time in trying to understand what I need to change to get it
> working. At the end, I decided to roll back to Plone 2.0.5... BUT IT DOES
> NOT WORK ANYMORE. It seems as the Data.fs has been corrupted.
> After installing back Plone 2.0.5 I simply copied the 2.5 GB Data.fs file to
> overwrite the installed Data.fs on PLONE/Data/var. Am I wrong?
> Can anyone help me and let me know how I can recover the Data.fs file and/or
> import it in whichever version of Plone???
> Thank you very much
> Andrea
> --
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Steve McMahon
Reid-McMahon, LLC
steve at reidmcmahon.com
steve at dcn.org

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