Prevent User Unmounting

[Bryce C]

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Is there a way to prevent a user (including root) from unmounting a (1
specific) device (/dev/mmcda1) from the command line?  I ask because I'm
now using an SD card as part of my Zaurus' root filesystem but I don't
want to accidentally unmount it. I realize that a locked file would also
prevent this but I just want to be sure. I'm already working on taping
it in so I don't accidentaly pop the card out and corrupt files that way
but I'd like to cover both bases.
BTW, this is the OpenZaurus rom.

Thanks,
--=20
Bryce C <Plug@BryceCo.Net>
CoBryce Communications

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