Date: Mon, 08 Jun 1998 20:37:01 +1000 From: Robert Chalmers <robert@chalmers.com.au> To: freebsd-questions <freebsd-questions@FreeBSD.ORG> Subject: Conclusion: disktab software is RS. Message-ID: <357BBECD.CD9B7850@chalmers.com.au>
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To take this back to scratch, the command disklabel -r -w sd1 auto produces this for a disklabel on sd1; # /dev/rsd1c: type: unknown disk: label: flags: bytes/sector: 512 sectors/track: 86 tracks/cylinder: 18 sectors/cylinder: 1548 cylinders: 2655 sectors/unit: 4110000 rpm: 3600 interleave: 1 trackskew: 0 cylinderskew: 0 headswitch: 0 # milliseconds track-to-track seek: 0 # milliseconds drivedata: 0 3 partitions: # size offset fstype [fsize bsize bps/cpg] c: 4110000 0 unused 0 0 # (Cyl. 0 - 2655*) Now, the formula, sects/track * tracks/cylinder * number of cylinders for this produces a size of 4109940, which is clearly different to the 4110000 shown for partition c: It seems to have been rounded up? Now, no matter what I do with the numbers, a disktab for this will not work. However, a disklabel and edit the table directly does. I can only conclude that there is someing wrong with the disktab part of the whole process. bob -- Support Whirled Peas. Business in China? China House robert@chalmers.com.au ph:61 7 49440357 fx:61 7 49578425 China House Uses Webposition to ensure Top Spot in Searches http://www.chalmers.com.au/ChinaHouse/Business/webposition To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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