[ADMIN] two versions on same linux

[Paul Gimpelj]

Hi,   I have redhat 7.3 and postgres 7.2   Is there a way to have 7.4 installed together with postgres 7.2 ? and both running at the same time, with of course different data directories.   should i use the generic postgres or the rpm'd.   The existing redhat has no passwords for postgres, and even if if assign one to user postgres, postgres ignores it.   thanks paul