Installing Linux packages

Linux and Unix-Like Red Hat
1

hi,

I wants to customize the Linux packages after installting the Linux OS...

I am not able to install the packages packages in GUI mode System-> Administration->add/remove software.i want to install some desktop and dabase related packages how do i install those packages...

I use RHEL6.2 server...

2

Use yum (or rpm if you have the package(s) at hand) to install packages after installing the OS.