yum utility is a complete software
management system. CentOS also includes several other
applications that can supplement
On your desktop is an Alert Icon that keeps you informed about package updates. Until your system is updated the icon appears as a red circle with a flashing exclamation mark. The Alert Icon is part of the up2date application, which enables you to easily install system updates.
CentOS also includes
system-config-packages. To run this
application from the graphical interface, select Desktop->System
software packages from your CentOS installation discs only, and does
not use repositories. This application is used on systems that do
not have a network connection.
The system-config-packages utility can ONLY be used if you do not update any packages and install only from the CD/DVD. This utility will fail if updates have been done.
rpm command-line utility has many functions
for working with individual RPM packages. You may use it to
manually install and remove packages from your system. If you
install software with the
rpm utility, you must
manually check and install any dependencies. For this reason,
yum is the recommended method for installing
|Current Package Versions|
The up2date and