Bad magic number in super-block

[Bryan Kadzban]

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Nickel Cadmium wrote:
> (or could the renumbering / device reassignement occur even without
> hardware change?)

For SCSI, yes, it could have changed (depending on your hardware setup).
SCSI disk scanning happens in parallel, and has ever since kernel 2.6.18
or .19 or somewhere around there.  I believe it still depends on your
low-level SCSI driver though.

In any case, the sdX device names are no longer necessarily stable.
That's why udev now creates the /dev/disk/by-* trees of symlinks, whose
names are supposed to be stable.  (I'd recommend by-id myself, but it
depends on how your disks are set up.)
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