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Article #9364Re: Disk Driver vs. 1.3
From: Steve Childress
Date: Sat, 23 Jul 1988 00:58
Date: Sat, 23 Jul 1988 00:58
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1456 bytes
Re the problem with FORMAT 1.3 and "handler not found". I tried using gamma 7 disks, and the problem prevailed. Hour of experimentation seemed to indicate that FORMAT makes some decisions based upon reading block 0 of the mounted partition. It seems to look for DOS or DOS\001 to guess about the state of the disk. I believe that it is FORMAT that is reading block 0, because I have MOUNT=1 in the mountlist entry, and from debug traces, I see that block 0 is also read, at mount time, by, I guess, the validator or file manager. It's the fact that format seems to read block 0 that is giving me fits. Seems to me that FORMAT should assume that the media is totally undefined and should not be read before it is formatted. If I erase block 0 with a sector killer utility, the symptoms change. I seem to recall a similar problem with 1.1's FORMAT utility when I first started on my disk driver in early '86. Any ideas welcome! steve childress 818-706-5247 PLINK: OPS274
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!lll-winken!lll-tis!ames!elroy!mahendo!wlbr!etn-rad!steve From: steve@etn-rad.UUCP (Steve Childress) Newsgroups: comp.sys.amiga.tech Subject: Re: Disk Driver vs. 1.3 Summary: After debugging... Message-ID: <558@etn-rad.UUCP> Date: 23 Jul 88 00:58:55 GMT References: <549@etn-rad.UUCP> <4245@cbmvax.UUCP> Reply-To: steve@etn-rad.UUCP (Steve Childress) Organization: Eaton Inc. IMSD, Westlake Village, CA Lines: 22