[Zope] Error Migration Data.fs from Zope 2.10.4 to 2.13.8

[Laurence Rowe]

You probably need to run it using ZODB 3.8 (i.e. with your Zope 2.10 instance.)

Laurence

On 6 October 2011 13:31, Frank Kauff <fkauff at biologie.uni-kl.de> wrote:
> Unfortunately, it's not working:
>
> When starting within the 2.10.4 environment, I get the error
>
> Traceback (most recent call last):
>   File "../strip_versions.py", line 116, in ?
>     main()
>   File "../strip_versions.py", line 108, in main
>     ZODB.BaseStorage.copy(it, output_storage)
> AttributeError: 'module' object has no attribute 'copy'
>
>
> Starting it from within 2.13.8, I get the old error again:
>
> Traceback (most recent call last):
>   File "../strip_versions.py", line 116, in <module>
>     main()
>   File "../strip_versions.py", line 108, in main
>     ZODB.BaseStorage.copy(it, output_storage)
>   File
> "/opt/zope/lib/python2.6/site-packages/ZODB3-3.10.3-py2.6-linux-x86_64.egg/ZODB/BaseStorage.py",
> line 394, in copy
>     for r in transaction:
>   File "../strip_versions.py", line 57, in __iter__
>     for record in self.__transaction:
>   File
> "/opt/zope/lib/python2.6/site-packages/ZODB3-3.10.3-py2.6-linux-x86_64.egg/ZODB/FileStorage/FileStorage.py",
> line 1890, in next
>     h = self._read_data_header(pos)
>   File
> "/opt/zope/lib/python2.6/site-packages/ZODB3-3.10.3-py2.6-linux-x86_64.egg/ZODB/FileStorage/format.py",
> line 150, in _read_data_header
>     h = DataHeaderFromString(s)
>   File
> "/opt/zope/lib/python2.6/site-packages/ZODB3-3.10.3-py2.6-linux-x86_64.egg/ZODB/FileStorage/format.py",
> line 236, in DataHeaderFromString
>     return DataHeader(*struct.unpack(DATA_HDR, s))
>   File
> "/opt/zope/lib/python2.6/site-packages/ZODB3-3.10.3-py2.6-linux-x86_64.egg/ZODB/FileStorage/format.py",
> line 246, in __init__
>     "Non-zero version length. Versions aren't supported.")
> ValueError: Non-zero version length. Versions aren't supported.
>
> Any help appreciated,
>
> Frank
>
>
> On 10/06/2011 02:02 PM, Andreas Jung wrote:
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA1
>>
>> Try  the following script to stip off versions:
>>
>> http://svn.zope.org/ZODB/branches/3.8/src/ZODB/scripts/strip_versions.py?rev=102805&view=markup
>>
>> - -aj
>>
>> Frank Kauff wrote:
>>> Hi all,
>>>
>>> I'm trying to update from Zope 2.10.4 to 2.13.8 and have problems to
>>>   copy Data.fs. No matter whether I try to directly copy Data.fs or
>>> use repozo, both times zope gives me the error
>>>
>>> ValueError: Non-zero version length. Versions aren't supported.
>>>
>>> Searching the net, this seems to be a common problem. However, I
>>> couldn't find a solution for it. Is there a tool anywhere that can
>>> convert Data.fs from older to newer formats?
>>>
>>> Thanks, Frank
>>>
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>
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