On Tue, 2005-07-19 at 10:33 -0500, Mike Kercher wrote: > I think I've read that the changes between 3 and 4 are too drastic to do an > upgrade. Upgrades are not recommended by Red Hat, and doing a yum upgrade would be problematic at best; however, an anaconda upgrade CAN be done (attempted?) by specifying the "upgradeany" switch at the CD/DVD boot prompt, or on the kernel line if started from grub for a hard disk or network install/upgrade. As usual have a good backup first (preferably a bootable "clone" on separate disk[s]/partitions), be prepared to deal with left-over packages after the upgrade ("rpm -qa --last > RPMS_Installed" and look at the end of the list for packages older than the upgrade date), and YMMV. Phil