[Bug 658227] Re: upgrade process does not upgrade underlying BDB format from 4.7 to 4.8 (so slapd aborts with "Program version 4.8 doesn't match environment version 4.7" error message)

Nathan Stratton Treadway ubuntu.lp at nathanst.com
Thu Oct 14 21:27:11 BST 2010


On Thu, Oct 14, 2010 at 19:07:47 -0000, Mathias Gug wrote:
> +	if dpkg --compare-versions "$OLD_VERSION" lt-nl 2.4.23-0ubuntu3.1; then
>  		return 0
>  	else
> 
> 
> That will force a database dump for every upgrade to
> maverick. This is the same fix as in Debian (modulo the
> package revision).
> 
> It won't address the use case outlined in comment 17.
> For users that have already upgraded to maverick the
> workaround outlined in the bug description should be
> followed.

Again, I don't have a way to actually test this, but I
believe that putting the "0ubuntu3.1" onto the comparison
means that in the case described in comment 17, the
upgrade script will attempt to do the export/import but
will not be able to do so (because the existing slapcat
will not be compatible with the existing db files), and
the package installation will abort.

If, on the other hand, the user had done the manual
repair steps already, the export/import will succeed --
but in that situation the db files have already been
converted, so the export/import cycle would not actually
be needed....


If I'm correct, then it's probably better to leave the
comparison as "lt-nl 2.4.23" (or perhaps "lt-nl
2.4.23-0ubuntu1").  That should guarantee that the export
is being run using a pre-2.4.23 version of slapcat, and
avoid touching the database on systems coming up from
post-2.4.23 versions (since the script can't do anything
for those systems anyway).

Nathan

-- 
upgrade process does not upgrade underlying BDB format from 4.7 to 4.8 (so slapd aborts with "Program version 4.8 doesn't match environment version 4.7" error message)
https://bugs.launchpad.net/bugs/658227
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