raid not autostarting after kernel update

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http://forums.fedoraforum.org – Howdy. I updated my fc12 x86_64 server today, and one of the updated included kernel from the previous one of kernel- When I boot with that kernel, it stops when my logical volumes that are built on a raid 5 array (linux software raid built using mdadm) are not there. I can start them afterward with mdadm --auto-detect which seemingly loads the appropriate modules and starts the array, but I have never had to do this before. Reading the mdadm man page, it mentions that this is generally done by the initrd. So, I am guessing the initrd that came with the new kernel is missing something. Help? (HowTos)