In addition to the files pertaining to the RPM system that reside in
/var/lib/rpm (see Chapter 5), there
are two other special locations that are reserved for Red Hat Linux
configuration and operation.
The control-panel and related tools put lots of stuff in
/usr/lib/rhs. There is probably nothing here that
you would want to edit. It is mostly small scripts, bitmaps and text
files.
The other location, /etc/sysconfig, stores
configuration information. The major users of the files in this
directory are the scripts that run at boot time. It is possible to edit
these by hand, but it would be better to use the proper control-panel
tool.