pg_config, ruby pg, postgresql 9.0 problem after upgrade, centos 5

Question

After upgrade postgresql 8.1 to 9.0 ive noticed issues with libraries dependency. Postgresql works fine (connection, queries).

yum list postgresql*
Installed         


        

Answer 1

This seems like a pg config file location error,

gem install pg -- --with-pgsql-lib=/usr/pgsql-9.0/lib --with-pg-config=/usr/pgsql-9.1/bin/pg_config

solves it!!

gem install pg -- --with-pgsql-lib=/usr/pgsql-9.0/lib --with-pg-config=/usr/pgsql-9.1/bin/pg_config

/usr/local/lib/ruby/1.9.1/yaml.rb:56:in `':
It seems your ruby installation is missing psych (for YAML output).
To eliminate this warning, please install libyaml and reinstall your ruby.
Building native extensions.  This could take a while...
Successfully installed pg-0.14.0
1 gem installed
Installing ri documentation for pg-0.14.0...
Installing RDoc documentation for pg-0.14.0...