Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10 5/3/83; site watcgl.UUCP Path: utzoo!watmath!watcgl!dmmartindale From: dmmartindale@watcgl.UUCP (Dave Martindale) Newsgroups: net.unix-wizards Subject: Re: 4.1BSD and bad sectoring Message-ID: <515@watcgl.UUCP> Date: Tue, 21-Jun-83 18:39:24 EDT Article-I.D.: watcgl.515 Posted: Tue Jun 21 18:39:24 1983 Date-Received: Wed, 22-Jun-83 01:29:49 EDT References: <680@rlgvax.UUCP> Organization: U of Waterloo, Ontario Lines: 15 To get bad sectoring to work, it isn't enough to add the sector to the bad block table via bad144. The actual header on that disk sector must have the "bad sector" bit set in order to get the controller to set the BSE bit. Only when an I/O aborts because of a BSE error does the driver go off and look the sector up in the bad sector table. One way of doing this (although tedious) is to reformat the pack. I suspect that the DEC formatter believes the bad sector file on disk, so if you add the sector to the file via bad144 and then run the formatter (I think its name is EVRAC) it will flag it bad for you. I believe there is also a section of the formatter which will add sectors to the bad sector file manually. Dave Martindale