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- Newsgroups: comp.sys.cbm
- Path: sparky!uunet!spool.mu.edu!umn.edu!csus.edu!netcom.com!fuzzy
- From: fuzzy@netcom.com (Fuzzy Fox)
- Subject: Re: 1541 Disk error...
- Message-ID: <1993Jan5.000909.23197@netcom.com>
- Organization: Foxes 'R' Us - Seven locations to serve you
- References: <1ha0rbINNaub@cs.tut.fi> <1992Dec24.071047.2553@cs.mun.ca> <1hhefhINNqbc@cs.tut.fi> <1992Dec27.015714.18226@Princeton.EDU> <1992Dec27.232632.1@cc.helsinki.fi>
- Date: Tue, 5 Jan 1993 00:09:09 GMT
- Lines: 21
-
- msmakela@cc.helsinki.fi (Marko Mkel) writes:
-
- >I have this error every now and then. It always disappears by ordering "I" or
- >"I0". Upon this instruction, the drive tries to read track 18, then does the
- >famous "scraach (track 1)-ta-ta-ta-ta-ta-ta-scraach (track 18)" and then
- >unexpectably turns off the light, having read the sector 0 of track 18
- >successfully. After this everything works for weeks.
-
- This usually happens when the drive's head gets moved past track 35 by
- some errant software or something. The drive uses information recorded
- on the disk in order to figure out where the head is; if it can't read
- the disk, it can't figure out where to move the head, so it just gives
- an error. The "I0" command forces the disk to try harder, resulting in
- the infamous "head bump" which puts the head back on track 1 again,
- where (hopefully) valid data is stored.
-
- --
- #ifdef TRUE | Fuzzy Fox fuzzy@netcom.com
- #define TRUE 0 | a.k.a. David DeSimone an207@cleveland.freenet.edu
- #define FALSE 1 | "You have been recruited by the Star League to defend
- #endif | the Frontier against Xur and the Kodan Armada."
-