cannot update machine using yum updates of another machine
 

I have installed centos 5 on my machine and updated that machine using ( yum update ) command ,but my problem is that how can I update my other machines using that updates??????? ,Because every time it is not possible to download packages(Because it is around 1GB),so how can I use that updates???


I know that it should be prasent in the /var/cache/yum directory so did the tar file of it and melt it on the other machine but after that how to update it locally

Have a look at the yum-downloadonly package. Once you have the packages you can redistribute them locally.

if you have already downloaded updates.. i think they should be present in /ver/cache/yum like something...

make a tar file of all present in yum cache and then distribute..

but how to distribute it locally

Set up file sharing on the machines and set the initial downloader to be a repository for the other machines.

Have a look at the createrepo package. It is used to setup a local yum repo(once you have the rpms).