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    SubjectRe: PROBLEM: floppy motor spins when floppy module not installed
    On Fri, 12 Dec 2003, [iso-8859-1] Måns Rullgård wrote:

    > Dale Mellor <dale@dmellor.dabsol.co.uk> writes:
    >
    > > 1. Floppy motor spins when floppy module not installed.
    >
    > It's a known problem. Some broken BIOSes don't turn off the motor
    > after probing for a disk. One solution is to change the boot priority
    > in the BIOS settings so the hard disk is tried before floppy. If you
    > ever need to boot from a floppy, you can change it back.
    >
    > --
    > Måns Rullgård
    > mru@kth.se

    It is not a broken BIOS! The BIOS timer that ticks 18.206 times
    per second has an ISR that, in addition to keeping time, turns
    OFF the FDC motor after two seconds of inactivity. This ISR is taken
    away by Linux. Therefore Linux must turn off that motor! It is a
    Linux bug, not a BIOS bug. Linux took control away from the BIOS
    during boot.

    Cheers,
    Dick Johnson
    Penguin : Linux version 2.4.22 on an i686 machine (797.90 BogoMips).
    Note 96.31% of all statistics are fiction.


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