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Odd partition error in F12, but not in F11

I have a friend that doesn't read the list that has been fighting a very odd issue with F12, which does not surface in F11.

On a clean install from the F12 DVD with the updates repo enabled, he created a RAID 5 setup across 6 drives. Each drive has only one partition on it. When the machine reboots it cannot rebuild the raid because it cannot find 4 of the 6 partitions. It drops to the root prompt and from there if you do an ls /dev/sd?* four of the drives show no entries for the partitions while the other two show the normal one partition. If you open one of the incorrect drives with fdisk it shows the correct partition table and if you write it out from fdisk it then shows correctly in /dev

If you do this to each of the drives they all show up and then mdadm can assemble the raid correctly. Reboot the machine and you are right back to where you started.

dmesg seems to show the kernel correctly listing each drive and correctly listing them with each one partition, but the entries are not in /dev for the partitions.

We rolled back to F11 and performed the same process and it worked fine. I am really at a loss for what to look at or what to test against. We currently have the machine up and working with F11, so I can get any information about hardware that might help.

I posted it here rather than the users list, because I don't really think this is a configuration problem. It seems like a bug in F12, but I don't know what to check it against.


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