Lamar Owen wrote:
>
> [replying to myself]
> On Tuesday 09 July 2002 07:34 pm, Lamar Owen wrote:
> > if you do this. Already RPM can rollback the transaction being done on the
> > RPM database (it's a db3 database system), but rolling back the filesystem
> > is a little different.
>
> As a note of interest, RPM itself is backed by a database, db3. Prior to
> version 4.x, it was backed by db1. Upgrading between the versions of RPM is
> simply -- installing db3 and dependenies, upgrade RPM, and run 'rpm
> --rebuilddb' -- which works most of the time, but there are pathological
> cases.....
>
> You now are running db3 instead of db1, if you didn't get bit by a
> pathological case. :-)
And how big/complex is the db1/3 system catalog we're talking
about exactly? How many rewrite rules have to be converted into
the new parsetree format during an RPM upgrade?
Jan
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