michelandre
How wrong you are. In the days before yum, downloading packages & doing local installs was what was done.
I do not have time to give you a detailed description with every link you will need etc etc etc, to a great degree it will depend on what system you are running, what packages you have installed & so on. You will have to locate system specific dependency packages.
Here are a few clues.
The wget command is very useful for downloading from specific repos.
eg usage
wget
http://mirror.canada.pialasse.com/releases/9.1/smeupdates/i386/RPMS/wget-1.12-8.el6.i686.rpmThis repo has the sme server updates for i386 systems
http://mirror.canada.pialasse.com/releases/9.1/smeupdates/i386/RPMS/download all the packages to an empty folder & run
yum update *
You need to also download the CentOS updates from the CentOS repo
to get some clues as to the repo locations to download from do
db yum_repositories show
As I said earlier, if you provide the detailed steps you followed, then someone here can tell you where you went wrong.