thank's a lot William,
I read all the conversation with greg and jazbokes . .
So I will seek your "how to" as I will be decided to go ... but it seems to stay a risky operation, isn't it ?
SO my further question, not actually for you william but for every body, is HOW CAN I BACKUP ALL THE SERVER a little bit in the Mind of how operate a norton ghost under window .. or whatever this soft exist or not for centos 4, what is the good way and practice and what files are needed to be backuped before starting this kind of risky upgrade ?
Thank's everybody for supporting "newbies"