Messages in this thread | | | Date | Fri, 12 Dec 2003 19:28:21 GMT | From | John Bradford <> | Subject | Re: PROBLEM: floppy motor spins when floppy module not installed |
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Quote from "Richard B. Johnson" <root@chaos.analogic.com>: > On Fri, 12 Dec 2003, [iso-8859-1] M=E5ns Rullg=E5rd 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 priorit= > y > > 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. > > > > -- > > M=E5ns Rullg=E5rd > > 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.
We discussed almost exactly the same problem at length on LKML just two months ago:
http://marc.theaimsgroup.com/?l=linux-kernel&m=106545766213063&w=2
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