[Bug 531240] Re: breaking raid: root raid_member opened as luks

[ceg]

concerning cryptsetup "wishlist":

Precautions like this show the level of safety and quality in
implementing basic OS operations. If cryptsetup would check the given
device before opening, this data loss would not occur now or any time
later if blkid, an admin or another script makes an error.

Its just a wrong default to allow accessing individual raid members (its
a dangerous operation).

i.e. "mount" returns "unknown filesytem type linux_raid_member“ for
filesystems on raid members and will only mount it given the -t option,
cryptsetup (or the kernel even?) should refuse by default, too, and
maybe allow opening a "cypt on raid member" directly only with --force.

-- 
breaking raid: root raid_member opened as luks
https://bugs.launchpad.net/bugs/531240
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