Date: Wed, 5 Mar 1997 04:50:01 -0800 (PST) From: j@uriah.heep.sax.de (J Wunsch) To: freebsd-bugs Subject: Re: kern/2873: Tahiti MO disk and od driver Message-ID: <199703051250.EAA15448@freefall.freebsd.org>
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The following reply was made to PR kern/2873; it has been noted by GNATS. From: j@uriah.heep.sax.de (J Wunsch) To: neil.long@materials.oxford.ac.uk Cc: FreeBSD-gnats-submit@freebsd.org Subject: Re: kern/2873: Tahiti MO disk and od driver Date: Wed, 5 Mar 1997 09:48:43 +0100 As Neil wrote: > disklabel -r -w od0 auto gives > /kernel: od0(aha0:5:0): MEDIUM ERROR info:2 asc:11,0 Unrecovered read error > Mar 4 13:14:11 njl /kernel: od0(aha0:5:0): MEDIUM ERROR asc:13,0 Address mark not found for data field Hmm, that's the second block which is dead (``info: 2''). I'm not sure whether the drive can remap bad blocks. You could give it a try on mode page 1. Maybe reformatting would be a help? > The disk is fine when used on a DOS PC (Corel SCSI drivers) or an SGI using > SG's fx and mkfs (uses scsi info not disktab) Perhaps they implement the equivalent to bad144? I don't think our SCSI device drivers do implement bad144 at all. Maybe the od driver should, however. Short of this, i don't think FreeBSD can do much with a defect medium. I tend to close the PR after the discussion. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)
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