Originally Posted by Kenny_Strawn
You can also do a 'su -c yum update && su -c yum upgrade' if you want to have similar features to Debian/Ubuntu's apt-get.
Running yum update && yum upgrade is not needed, as yum upgrade does the same as yum update
If run without any packages, update will update every currently
installed package. If one or more packages or package globs are
specified, Yum will only update the listed packages. While
updating packages, yum will ensure that all dependencies are sat-
isfied. If the packages or globs specified match to packages
which are not currently installed then update will not install
them. update operates on groups, files, provides and filelists
just like the "install" command.
If the main obsoletes configure option is true (default) or the
--obsoletes flag is present yum will include package obsoletes in
its calculations - this makes it better for distro-version
changes, for example: upgrading from somelinux 8.0 to somelinux
Is the same as the update command with the --obsoletes flag set.
See update for more details
Other than that, I agree with John VV.
Which distro and which rpm are we talking about?