The other day i booted the F10 DVD and upgraded an existing 64 Bit fedora 8 installation.
after the reboot i fixed the NVIDIA drivers (expected) and tried to fix the MDADM problems (somewhat expected).
Here is the issue:
Every time i reboot the machine, the array randomly fails drives. Sometimes if fails 3 and refuses to start, other times it fails 1 and starts.
i can fix this by :
mdadm --stop /dev/md_d0
mdadm --stop /dev/md0
mdadm --create /dev/md0 --assume-clean --level=5 --raid-devices=5 /dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1
mount /dev/mapper/lvm--raid-multimedia /Multimedia/
Here is what i think the probem is.
sometimes it decides that one (or more) of the disks belongs to another raid unit with the same name.
IE, of the 5 drives, it says that 3 belong to "lvm-raid" while the other 2 belong to "lvm-raid" as well.
The missing drive which belongs in MD0 is what is in md_d0