On Sat, 7 May 2011, Ljubomir Ljubojevic wrote:
in-place upgrade of C5 to C6 will be most likely impossible. To many changes of how thing work.
In local testing built from the anaconda and related sources that will become CentOS 6, the offer to upgrade an existing install is made during a media based install. As I was not interested in upgrading a random drive pulled from my 'scratch pool', I did a wipe and fresh partition and install ;)
Particularly difficult to me seems to be the 'ext4' conversion from lower numbered versions with an 'in place' upgrade
-- Russ herrold