Date: Wed, 19 Aug 2020 10:19:38 +0200 From: Christoph Kukulies <kuku@kukulies.org> To: Ruben via freebsd-questions <freebsd-questions@freebsd.org> Subject: Re: 5.25" Floppy disk drive not recognized Message-ID: <C7539EA4-F89B-423F-AE95-74E11672AC4B@kukulies.org> In-Reply-To: <C8787065-AD7F-4F1F-B6D8-563B39F5DA37@kukulies.org> References: <wu7ft8pmwpo.fsf@banyan.cs.ait.ac.th> <C8787065-AD7F-4F1F-B6D8-563B39F5DA37@kukulies.org>
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--Apple-Mail=_3272541D-1DF3-4536-A7AE-4D9697B42F55 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Just want to inform about the progress accessing the 5.25=E2=80=9C = drive. It turned out that the cabling of the TEAC-55GFR was wrong. The = ASRock939A790GMH MB supports only one floppy drive. It comes with a cable to connect that = one 3.5=E2=80=9C drive with the typical twist in the cable. To connect the 5.25 drive I needed a cable with an edge connector. So I = pressed an edge connector to the cable, but did that before the twist, resulting in that I had to jumper the = drive to Device 0. That resulted in the spindle motor not running when the drive was = selected. In the docs for that drive (TEAC) I found a=20 remark, saying that you have to connect pins 10 and 16 when the drive is = run as Device 0 on a straight cable. That was all the mess behind it. Now I can happily use fdread to access = the drive. =E2=80=94 Christoph > Am 14.08.2020 um 12:50 schrieb Christoph Kukulies <kuku@kukulies.org>: >=20 > First problem was to recognize the 5.25=E2=80=9C drive from the BIOS. > This MB seems to only support one floppydrive. It comes with an ASUS = branded point to point cable (one connector only). >=20 > At least I managed that FBSD now recognizes the drive: >=20 > fdc0: <floppy drive controller (FDE)> port 0x3f0-0x3f5,0x3f7 irq 6 drq = 2 on acpi0 > fd0: <1200-KB 5.25" drive> on fdc0 drive 0 >=20 > But when I=E2=80=99m trying to > d# dd if=3D/dev/fd0 of=3Dfd_dump=20 > dd: /dev/fd0: Device not configured > 0+0 records in > 0+0 records out > 0 bytes transferred in 0.000252 secs (0 bytes/sec) > #=20 >=20 >=20 > Do I have to specify special blocksize? >=20 > =E2=80=94 > Christoph >=20 >> Am 14.08.2020 um 10:57 schrieb Olivier <Olivier.Nicole@cs.ait.ac.th>: >>=20 >> Christoph >>=20 >>>> I=E2=80=99m trying to access a 5.25=E2=80=9C floppy disk drive if = anyone here knowing what a =E2=80=9Efloppy=E2=80=9C disk drive is. :) >>>=20 >>>> MB is a ASRock939A790GMH >>>=20 >>>> I see the drive in the BIOS although I=E2=80=99m not sure if it is = really =E2=80=9Econnected=E2=80=9C. >>>=20 >>>> Anyway, the FreeBSD (12.1) boot doesn=E2=80=99t see the hardware at = all. >>=20 >> Launch any old live OS that still had support for floppies and = migrate >> your data. >>=20 >> You should be able to find old ditribution of some Linux, or even = WinXP. >>=20 >> Olivier >=20 --Apple-Mail=_3272541D-1DF3-4536-A7AE-4D9697B42F55 Content-Disposition: attachment; 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