Last night, I used "yum update" to download and install kernel 22.214.171.124-170.2.72.fc10.i686 on my F10 box, along with a number of other updates that were available.
Download time was about 4 minutes for all the updates/new installs that were available for my box, including the new kernel. But at update/install time, yum hanged at installing the new kernel for about an hour. Eventually, update/install completed, and upon reboot, the new kernel was reported as installed. With the exception of the new kernel, the updates/installs only took a minute or so to complete.
Why is the kernel install taking an hour to complete?