Date: Fri, 1 Oct 2010 16:16:44 +0200 From: Polytropon <freebsd@edvax.de> To: Christoph Kukulies <kuku@kukulies.org> Cc: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Re: 5.25" floppy drive Message-ID: <20101001161644.30889075.freebsd@edvax.de> In-Reply-To: <4CA5DC68.6040507@kukulies.org> References: <4CA5DC68.6040507@kukulies.org>
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On Fri, 01 Oct 2010 15:04:40 +0200, Christoph Kukulies <kuku@kukulies.org> 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). Similat to this? % dmesg | grep ^fd fdc0: <floppy drive controller> port 0x3f2-0x3f3,0x3f4-0x3f5,0x3f7 irq 6 drq 2 on acpi0 fdc0: [FILTER] fd0: <1440-KB 3.5" drive> on fdc0 drive 0 This is for a 3.5" drive of course, the 5.25"'s message should read similar. FreeBSD 7 here. > 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. > > I tried that with two TEAC drives to no avail. Strange, I would suspect drive electronics first... do you have a "low end" PC (DOS) to check the drives? The lowest level diagnosis tools are often the best. :-) > Any clues what I may have forgotten? The drive is connected with the > edge connector and the end is open. Sounds correct. > Does it need to be terminated? No. The position on the cable selects which "drive letter" will be associated to a given drive; the one on the end is A:, the one on the middle is B:. A single drive is usually connected to the end of the cable. As the connector for 5.25" drive does have a gap, you can't "wrongly connect" it. The connector to the main board should also have a nose that prevents wrong cabling. Wrong cabling is indicated by a permanent (!) activity light on the drive. Instead of using dd, can you maybe access the drive using mount or the mtools (from ports)? If you encounter further problems, I can get a working drive and check here. I'm in a kind of working museum. :-) -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...
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