F16 occasionally breaks RAID1 (md) on boot

[Sam Varshavchik]

Andreas M. Kirchwitz writes:

> Basically the same problem has been reported by Sam Varshavchik
> in <cone.1323864504.969555.2535.1000 at monster.email-scan.com>
> but there wasn't a final solution.

Yup. But I did find a final solution, eventually.

Take a survey of all your mdraid UUIDs. Reconcile it against your  
/etc/default/grub. GRUB_CMDLINE_LINUX should include rd.md.uuid={UUID} for  
all mdraid UUIDs. Add the missing ones there. Rerun /sbin/grub2-mkconfig to  
rebuild grub.cfg, updating the command line used to boot all installed  
kernels, and making sure that kernel upgrades get the updated command line  
from /etc/default/grub.