On Fri, May 30, 2008 at 8:16 AM, Sorin Srbu sorin.srbu@gmail.com wrote:
I did the upgrade dance with yum once when going from Fedora 5 to 7. It worked, but took a lot of time and left a helluva' lot of obscure lib-failures and stuff. I eventually got it working but I never felt sure it wouldn't fail on me whenever. After running the upgraded system for a month or so w/o any problems, I decided to do a fresh install from scratch with CentOS5 and clear all FUD I had left.
Yum -upgrades works, but you'll potentially spend a lot of time clearing and fixing problems afterwards. You want a quick install, do a fresh one. Don't forget to backup your data first though.
I upgrade between minor releases, and that seems to work fairly well. But for any major release, I'd go for a clean install.
mhr