[ADMIN] How to move a database from HP server to Linux Server that had already one database.

[ENGEMANN, DAYSE]

Hi,

I have a HP Server with a postgres database, and I need to transfer it to 
another server, but it is a Linux server and there is a database that needs be 
preserved.
Both have PGDATA=/postgres
The database is about 150 MB.
What is the easy way to do it?

thanks