I plan to make my current Centos 4 HD a slave and install Centos 5.5 on a new HD (master). Then comes the challenge of of moving all of my /home/"user" data to the new master. I have some preliminary questions: Is this a good strategy for installing Centos 5.5: keep the Centos 4 on a slave disk? Will the Centos 5.5 detect the slave disk (Centos 4)? Is there a way to move the users, groups and passwords from one disk to the new Centos 5.5? IT departments must have servers go down or want to install a new version of Linux and have the same challenges. Todd -- Ariste Software Petaluma, CA 94952 http://www.aristesoftware.com