Subject Re: [firebird-support] Unsupported on-disk structure
Author Ann W. Harrison
AJS wrote:
> I had the same type of problem when i used a Firebird 2.0 Database on a
> machine with Firebird 1.5 installed.
> ring any bells ????

Sure. When changes are made to the store format of data, called the
ODS for On Disk Structure, Firebird increments the ODS version number.
Often, but not always, a newer Firebird can read an older Firebird
ODS, but not vice-versa. If you need to revert to an older version
of Firebird, you must first backup your databases using the new
server and an old gbak, then restore with the old gbak and the old