Date: Thu, 4 Feb 1999 12:32:04 +0000 (GMT) From: Mark Powell <M.S.Powell@ais.salford.ac.uk> To: Greg Lehey <grog@lemis.com> Cc: Mark Powell <M.S.Powell@ais.salford.ac.uk>, freebsd-questions@FreeBSD.ORG Subject: Re: What's DIOCWLABEL mean? Message-ID: <Pine.BSF.4.05.9902041229030.30386-100000@plato.salford.ac.uk> In-Reply-To: <19990204104200.Q1179@freebie.lemis.com>
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On Thu, 4 Feb 1999, Greg Lehey wrote: > > Why can I not alter the labels on da4-6 ? > > To answer the question in the Subject: line: DIOCWLABEL is an ioctl > call saying ``write disk label''. There's no such underlying > operation on the device: it just writes in a particular place. Before > considering it a bug in the DPT hardware or software, I'd be inclined > to check the major and minor numbers for your /dev/da* files, and to > run ktrace on the disklabel operation to find out which device > disklabel really tries to open. If all appears correct, you should Dohh. You're right. I did ktrace them, but obviously wasn't paying attention. On the failing command: 2208 disklabel RET execve 0 2208 disklabel CALL open(0x8068030,0x2,0x5) 2208 disklabel NAMI "/dev/rda6c" 2208 disklabel RET open -1 errno 2 No such file or directory 2208 disklabel CALL open(0x8068030,0x2,0x5) 2208 disklabel NAMI "/dev/rda6" 2208 disklabel RET open 3 On the successful: 2211 disklabel RET execve 0 2211 disklabel CALL open(0x8068030,0x2,0x5) 2211 disklabel NAMI "/dev/rda3c" 2211 disklabel RET open 3 Quick MAKEDEV put the neccesary devices back in. Quite why they were there for da[0-3] and not da[4-6] is still a mystery. Cheers for the help. Mark Powell - System Administrator (UNIX) - Clifford Whitworth Building A.I.S., University of Salford, Salford, Manchester, UK. Tel: +44 161 295 5936 Fax: +44 161 295 5888 www.pgp.com for PGP key M.S.Powell@ais.salfrd.ac.uk (spell salford correctly to reply to me) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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