Fake raid system won't boot after upgrade to 3.1.9-2

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https://bbs.archlinux.org – I have fake (nvidia) raid 1 setup using dmraid. All worked pretty well for almost a month and every update went fine. Except the last one to linux 3.1.9-2. There was some output lines from pacman saying something like "hook dmraid is not available" during linux package installation. And after I rebooted computer neither main kernel nor fallback kernels won't boot saying "Unable to determine major/minor of root devices" and dropping into recovery shell. I don't know what to do now, how to restore system and why this is happened? Evgeniuz https://bbs.archli (HowTos)