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    SubjectRe: PROBLEM: floppy motor spins when floppy module not installed
    "Richard B. Johnson" <> writes:

    > On Fri, 12 Dec 2003, [iso-8859-1] Måns Rullgård wrote:
    >> Dale Mellor <> 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.
    > 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.

    OK, but why doesn't it affect all machines?

    Måns Rullgård

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