When I try to boot the alternate cd in rescue mode, it gives me a screen to choose the root fs, which has an option to activate raid arrays. After activating the raid array, and selecting it, it tells me the mount failed. It looks like rescue mode has no cryptsetup support at all, but it isn't trying to activate the raid member by mistake, and blkid and cryptsetup isLuks do not think the raid members are luks volumes.
When I try to boot the alternate cd in rescue mode, it gives me a screen to choose the root fs, which has an option to activate raid arrays. After activating the raid array, and selecting it, it tells me the mount failed. It looks like rescue mode has no cryptsetup support at all, but it isn't trying to activate the raid member by mistake, and blkid and cryptsetup isLuks do not think the raid members are luks volumes.