On Sun, 15 Aug 2010 17:20:41 -0700, Mark wrote
It might help if you gave us some real information, like what hardware you're running, which actual version of CentOS and the kernel you are (and were) running, etc. Otherwise we're stabbing for a needle in a haystack.
I don't ever remember running a 'yum update' when I was using the 32-bit version and having it update me to a 64-bit kernel. I had to make that choice on my own first.
Hardware: Supermicro with Intel 64-bit CPU
The OS was CentOS 5.3 32-bit. I upgraded with the CentOS 5.5 x86_64 DVD, as stated earlier. I did not do the upgrade using yum, the upgrade broke yum.
Cheers, --Bill