[CentOS] floppy drives

m.roth at 5-cent.us m.roth at 5-cent.us
Mon Apr 8 16:55:44 UTC 2013


John R Pierce wrote:
> On 4/8/2013 7:58 AM, m.roth at 5-cent.us wrote:
>> Good thought... but I think I had one of them disconnected before I took
>> my system down yesterday and connected both. I will note that the 5.25"
>> one's light does seem to stay on, regardless.
>
> OH.   another rusty old memory.  if you plugged a floppy cable in upside
> down (only possible if the cable wasn't keyed, but I remember quite a
> few that werent), it grounded both drive select and write select, and
> the drive would write nulls (or something) all over any track that was
> seeked to, without even sector formatting.   this would, of course,
> erase any disk you inserted.  also, the LED would stay on.

I *think* these cables are keyed - they're "relatively" new, but I'll
check. I still think I had the 5.25 power on, but not the cable....
Something to check this evening.




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