postgres@newcollab:/usr/lib/postgresql/9.0/bin$ ./pg_upgrade -b /usr/lib/postgresql/8.4/bin/ -B /usr/lib/postgresql/9.0/bin/ -d /var/lib/postgresql/8.4/main -D /var/lib/postgresql/9.0/main sh: /usr/lib/postgresql/9.0/bin/pg_config: not found Performing Consistency Checks ----------------------------- Checking old data directory (/var/lib/postgresql/8.4/main) ok Checking old bin directory (/usr/lib/postgresql/8.4/bin) ok Checking new data directory (/var/lib/postgresql/9.0/main) ok Checking new bin directory (/usr/lib/postgresql/9.0/bin) check for pg_config failed - No such file or directory