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Newsgroups: comp.unix.bsd.freebsd.misc Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!simtel!news1.oakland.edu!newsxfer.itd.umich.edu!gatech!news.mathworks.com!uunet!in2.uu.net!news.sandia.gov!sargon.mdl.sandia.gov!aflundi From: aflundi@mdl.sandia.gov (Alan F Lundin) Subject: Re: useing floppies under 2.0.5-950622-SNAP Message-ID: <1995Jul27.141159.28319@mdl.sandia.gov> Reply-To: aflundi@sandia.gov (Alan F Lundin) Organization: MDL, Sandia National Labs., Albuquerque, NM References: <3v0f77$dok@bronze.coil.com> <3v5ehf$llp@bonnie.tcd-dresden.de> Date: Thu, 27 Jul 1995 14:11:59 GMT Lines: 60 In article <3v5ehf$llp@bonnie.tcd-dresden.de>, J Wunsch <joerg_wunsch@uriah.heep.sax.de> wrote: >Eric Chet <echet@coil.com> wrote: > >>/dev/fd0c on /mnt: Incorrect super block. >(Already answered by Jordan) > >>Lets try a msdos disk: >>mount -t msdos /dev/fd0c /mnt >>msdos: mount: Input/output error >> >>dmesg shows: >>fd0c: hard error reading fsbn 0 (ST0 40<abnrml> ST1 1<no_am> ST2 0 cyl 0 >>hd 0 sec 1) > >Bad disk. Probably wrong format? It couldn't find the address mark >of the ID field of the very first sector. If it's a 720 KB floppy, >used /dev/fd0.720. Btw., ``/dev/fd0c'' is the wrong approach for >floppies, there's nothing like the partition scheme as on a hard disk. >Use ``/dev/fd0'' as a synonym for the `standard' capacity (1440 KB for >3.5in, 1200 KB for 5.25in), or use ``/dev/fd0.<capacity>''. I've had lots of problems with the floppies on two quite different systems. Am I the only one? --or does this have something to do with badly designed hardware? (I have an ISA bus with an Adaptec 1542B and generic floppy controller on my home system, and a VLB/ISA bus with Bt445S and generic floppy controller on my work system.) For instance, almost every time I use "mdel" to delete a file from an MS-DOS disk, the disk seems to become corrupted, and I'm pretty sure that the disks aren't bad since I have no problems at all re-using them on a SPARCstation the same ways (i.e., mtools). $ mdir Volume in drive A has no label Directory for A:/ PRT_TGZ UU 106697 7-04-95 11:27a 1 File(s) 1350656 bytes free [1]+ Done netscape http://www.internet.net/ $ mdel prt_tgz.uu $ mdir disk_read: read: Input/output error with an error: fd0c: hard error reading fsbn 17 of 0-35 (ST0 40<abnrml> ST1 1<no_am> ST2 1<no_dam> cyl 0 hd 0 sec 18) Is there something I just don't understand about the floppies? I notice that the error message indicates that mtools uses fd0c. Perhaps I ought to recompile the mtools package so that it doesn't use fd0c? --alan -- Alan Lundin <aflundi@sandia.gov>