Description of problem:
If you install the kernel-PAE package, the 'default=N' line in
/boot/grub/grub.conf is not updated (as with kernel packages).
If you are only installing kernel-PAE packages, shouldn't this update?
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Install kernel-PAE package
2. Reboot. Will boot old kernel
Automatic grub updating depends on the DEFAULTKERNEL setting in /etc/sysconfig/kernel. Sounds like
yours is set to 'kernel', probably from that being the kernel laid down at install time. Change that
parameter to kernel-PAE and grub should update to use subsequently installed kernel-PAE's as you're
expecting. I believe this is officially NOTABUG, and the component is actually grub, not kernel.