Date: Sat, 02 Oct 2010 10:35:25 +0200 From: Christoph Kukulies <kuku@kukulies.org> To: freebsd-questions@freebsd.org Subject: Re: 5.25" floppy drive Message-ID: <4CA6EECD.2000400@kukulies.org> In-Reply-To: <alpine.BSF.2.00.1010011113550.78401@wonkity.com> References: <4CA5DC68.6040507@kukulies.org> <alpine.BSF.2.00.1010011113550.78401@wonkity.com>
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Thanks to all. Solved. It was a multiple cause issue: 1st: BIOS Setting was incorrect (had to enable 1.2MB 5.25 rather than 3.5 which was it set to - an oversight in the firts place, that occured to me). 2nd: Cable issue: I had a combined cable (3.5 " connector at the end and edge connector second but last. 3rd: in combination with 2nd: DS0 jumper issue. Anyway, I found a cable that had two edge connectors. In the end it turns out that the floppies that were lying in a drawer for 19 years, are producing read errors. I also learnt about fdcontrol. Floppy interface has changed significantly since Joerg Wunsch and Bruce Evans worked on them in the early FreeBSD days back in 1995 :) -- Christoph Am 01.10.2010 19:18, schrieb Warren Block: > On Fri, 1 Oct 2010, Christoph Kukulies wrote: > >> I'm in the need of reading some data from old 5.25" floppy media >> (1.2MB). >> I lent 2 drives from neighbour institutes at the university and after >> having recalled that the >> floppies have to be enabled in the BIOS I'm now seeing the fd0 device >> in dmesg (FreeBSD 8.0 RELEASE). >> >> I can do a dd if=/dev/fd0 of=/root/fd0.dmp >> >> The select light is lit, the head motor seems to get power but the >> spindle doesn't spin. > > Possibly a drive select issue. Some drives had jumpers or switches, > some cables have flipped-around wires so the connectors are specific > to one drive or another. If your cabling is straight-through with no > funny business at the connectors, set the drive to DS0. If the cable > has split out and flipped-over sections, DS1 should be set in the > jumpers --but then it depends on which connector is used. ...I think, > anyway, it's been a few years since I've had to use a 5.25. > >> I tried that with two TEAC drives to no avail. >> >> Any clues what I may have forgotten? The drive is connected with the >> edge connector and the end is open. >> Does it need to be terminated? > > None that I've seen. > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to > "freebsd-questions-unsubscribe@freebsd.org"
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