Date: Tue, 05 Apr 2005 00:32:35 -0700 From: Jason Taylor <jason@infinitebubble.com> To: "Kevin G. Eliuk" <canonalis@dccnet.com> Cc: freebsd-questions@freebsd.org Subject: Re: Formating a 1680k floppy Message-ID: <42523F13.1020902@infinitebubble.com> In-Reply-To: <4251FBC8.8040203@dccnet.com> References: <42505AB3.6090602@infinitebubble.com> <42506B78.6050309@dccnet.com> <4250EA45.6060803@infinitebubble.com> <4251FBC8.8040203@dccnet.com>
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Kevin G. Eliuk wrote: > Jason Taylor wrote: >> I'm sure. I get the same results trying to create a 1720k. >> >> %fdformat -f 1680 /dev/fd0 >> fdformat: unknown format 1680 KB for drive type 1.44M >> %fdformat -f 1720 /dev/fd0 >> fdformat: unknown format 1720 KB for drive type 1.44M >> %fdformat -s 21,,,,80 /dev/fd0 >> Format 1680K floppy `/dev/fd0'? (y/n): y >> Processing E^C-------------------------------------- >> %fdformat -s 21,,,,82 /dev/fd0 >> Format 1722K floppy `/dev/fd0'? (y/n): y >> Processing E^C-------------------------------------- > > > My mistake. ( I haven't looked at this procedure in a loooong while). > I have just successful in creating a 1722 by: > > # fdcontrol -f 1722 /dev/fd0 > # fdformat fd0 > Format 1722K floppy `/dev/fd0'? (y/n): y > Processing VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV done. > > Not sure about a 1680: > > # fdcontrol -v -f 1680 /dev/fd0 > fdcontrol: unknown format 1680 KB for drive type 1.44M > > Hope this helps a bit. > Yes, it helped a lot! Thank you. It set me down the right path at least. Here's what I came up with that finally worked: %fdcontrol -s 21,512,0xFF,0X1C,80,500,2,0x0C,2,0,+mfm /dev/fd0 %fdformat fd0 Format 1680K floppy `/dev/fd0'? (y/n): y Processing VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV done. FWIW, I think the following patch for fdcio.h would let the "fdformt -f 1680 /dev/fd0" method work. I have *not* tested this. --- fdcio.h Fri Sep 17 21:57:55 2004 +++ fdcio.h.1680 Tue Apr 5 00:19:09 2005 @@ -182,6 +182,7 @@ */ #define FDF_3_2880 36,2,0xFF,0x1B,80,0,FDC_1MBPS,002,0x4C,1,1,FL_MFM|FL_PERPND #define FDF_3_1722 21,2,0xFF,0x04,82,0,FDC_500KBPS,2,0x0C,2,0,FL_MFM +#define FDF_3_1680 21,2,0xFF,0x1C,80,0,FDC_500KBPS,2,0x0C,2,0,FL_MFM #define FDF_3_1476 18,2,0xFF,0x1B,82,0,FDC_500KBPS,2,0x6C,1,0,FL_MFM #define FDF_3_1440 18,2,0xFF,0x1B,80,0,FDC_500KBPS,2,0x6C,1,0,FL_MFM #define FDF_3_1200 15,2,0xFF,0x1B,80,0,FDC_500KBPS,2,0x54,1,0,FL_MFM
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