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(fdutils.info)Fixed format devices

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Fixed format devices
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   Fixed format devices should not be used under normal circumstances.

   Fixed format devices have an intrinsic geometry.  They are useful for
the `fdformat' program (which is now considered obsolete), and for
booting off floppies which have formats that are different from the
default format (because during booting, there is no application that can
issue the otherwise needed `FDSETPRM' ioctl).