Re: 9.4 pg_control corruption - Mailing list pgsql-hackers

李海龙 <hailong.li@qunar.com> writes:
> I have a PostgreSQL datadir named /export/pg94beta1_data/ which was 
> initialized with PostgreSQL 9.4beta1,
> [ and 9.4beta2 won't start with it ]

This is expected; you need to initdb.  Or use pg_upgrade to upgrade
the cluster.  We had to change pg_control format post-beta1.
        regards, tom lane