home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!noc.near.net!news.bbn.com!bbn.com!leekil
- From: leekil@bbn.com (Lee Kilpatrick)
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: HD floppy on A3000 problems
- Date: 21 Jan 1993 23:35:03 GMT
- Lines: 34
- Message-ID: <llucp7INNre@news.bbn.com>
- References: <1993Jan21.182156.24018@pony.Ingres.COM>
- NNTP-Posting-Host: bbn.com
- Keywords: HD floppy
-
- chsieh@Ingres.COM (Chemin Hsieh) writes:
-
-
- >I recently bought a HD floppy for my A3000. After changing the jumper
- >on the motherboard and the jumper on the drive itself to be df1, the
- >machine boots fine and both drives are accessible (the HD floppy and
- >the regular LD one that came with the 3000). They both read, write,
- >and format DSDD floppies fine. Now for the problem. I had bought
- >HD floppies some time ago anticipating this purchase, and had formatted
- >them with the LD drive. The new HD drive cannot read these disks,
- >which is to be expected, as the drive detects the hole in the disk
- >and expects high density, so it spins at half speed. But when I try
- >to reformat such a disk, it either complains about bad sectors and
- >aborts the format, or finishes (after stuttering on some tracks) but
- >the disk is only 880K! What's up? I read in this group that you just
- >format a disk and voila! It's 1.76M. Is this true (and therefore,
- >I have a bad drive)? Or do I need to do something funky with a
- >mountlist entry? Or does formatting an HD disk with an LD drive screw
- >up the disk such that it can't be reformatted with an HD drive?
-
-
- I have seen similar problems trying to format a disk on an IBM that
- has been previously formatted on another machine, like an Amiga. This
- was ot specifically a DD->HD change, but maybe a DD->DD change. I
- thought it was just an IBM problerm, but maybe it is a common disk
- drive anomaly. It doesn't seem like it should happen, at any rate.
- When I did the same thing you were trying to do, going from DD->HD
- with my floptical drive, it worked fine. My suggestion would be to
- "blank" out the disks by rubbing a magnet around on the outside of the
- case and then trying to format them. I suppose this is okay to do,
- anyone know anything to the contrary?
-
-
- Lee
-