No processo de atualização do meu PostgreSQL da versão 9.2.4 para 9.3.1 (via homebrew no OS X) me deparei com um problema estranho. Estes são os passos que tomei até agora

PostgreSQL, PostGIS e bibliotecas necessárias instaladas (sem erros)correinitdb no novo banco de dadosparou os dois servidorescorridapg_upgrade

pg_upgrade executa as verificações necessárias, cria dumps do cluster antigo, mas ao importar para o novo cluster eu recebo o seguinte erro:

> ./pg_upgrade -b /usr/local/Cellar/postgresql/9.2.4/bin/ -B /usr/local/Cellar/postgresql/9.3.1/bin -d /usr/local/var/postgres/ -D /usr/local/var/postgres9.3.1 -u postgres
Performing Consistency Checks
-----------------------------
Checking cluster versions                                   ok
Checking database user is a superuser                       ok
Checking for prepared transactions                          ok
Checking for reg* system OID user data types                ok
Checking for contrib/isn with bigint-passing mismatch       ok
Creating dump of global objects                             ok
Creating dump of database schemas
                                                            ok
Checking for presence of required libraries                 fatal

Your installation references loadable libraries that are missing from the
new installation.  You can add these libraries to the new installation,
or remove the functions using them from the old installation.  A list of
problem libraries is in the file:
    loadable_libraries.txt

Failure, exiting

Parece que o PostgreSQL 9.3.1 tenta usar o PostGIS 2.0, que não é compatível

Could not load library "$libdir/postgis-2.0"
ERROR:  could not access file "$libdir/postgis-2.0": No such file or directory

Could not load library "$libdir/rtpostgis-2.0"
ERROR:  could not access file "$libdir/rtpostgis-2.0": No such file or directory

Alguém já se deparou com o mesmo problema?