Date: Fri, 23 Aug 2002 17:10:02 +0900 From: Kazutoshi Kubota <yakk@willbe6.org> To: current@freebsd.org Subject: newfs is probably a bit strange Message-ID: <86d6saq9lx.wl@marlone.willbe6.org>
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Hello all, My harddisk has four slices, and FreeBSD uses ad0s[234] on that disk. The following is a partition layout on /dev/ad0s3: # /dev/ad0s3c: type: ESDI disk: ad0s3 label: flags: bytes/sector: 512 sectors/track: 63 tracks/cylinder: 255 sectors/cylinder: 16065 cylinders: 509 sectors/unit: 8177085 (snip) 8 partitions: # size offset fstype [fsize bsize bps/cpg] a: 262144 0 4.2BSD 1024 8192 16 # (Cyl. 0 - 16*) c: 8177085 0 unused 0 0 # (Cyl. 0 - 508) e: 1048576 262144 4.2BSD 1024 8192 16 # (Cyl. 16*- 81*) f: 1048576 1310720 4.2BSD 1024 8192 16 # (Cyl. 81*- 146*) g: 5817789 2359296 4.2BSD 1024 8192 16 # (Cyl. 146*- 508*) So, run 'newfs /dev/ad0s3e', then I get following results. yakk@schia[02-08-23 16:36]% sudo newfs /dev/ad0s3e /dev/ad0s3e: 512.0MB (1048576 sectors) block size 8192, fragment size 1024 using 12 cylinder groups of 45.12MB, 5776 blks, 11584 inodes. super-block backups (for fsck -b #) at: 32, 92448, 184864, 277280, 369696, 462112, 554528, 646944, 739360, 831776, 924192, 1016608 yakk@schia[02-08-23 16:36]% sudo disklabel ad0s3 # /dev/ad0s3c: (snip) 8 partitions: # size offset fstype [fsize bsize bps/cpg] a: 262144 0 4.2BSD 1024 8192 16 # (Cyl. 0 - 16*) c: 8177085 0 unused 0 0 # (Cyl. 0 - 508) e: 1048576 262144 4.2BSD 1024 8192 46208 # (Cyl. 16*- 81*) f: 1048576 1310720 4.2BSD 1024 8192 16 # (Cyl. 81*- 146*) g: 5817789 2359296 4.2BSD 1024 8192 16 # (Cyl. 146*- 508*) It is a strange... And I try 'newfs -c xx /dev/ad0s3e'. Then disklabel says: 8 partitions: # size offset fstype [fsize bsize bps/cpg] a: 262144 0 4.2BSD 1024 8192 16 # (Cyl. 0 - 16*) c: 8177085 0 unused 0 0 # (Cyl. 0 - 508) e: 1048576 262144 4.2BSD 1024 8192 256 # (Cyl. 16*- 81*) f: 1048576 1310720 4.2BSD 1024 8192 16 # (Cyl. 81*- 146*) g: 5817789 2359296 4.2BSD 1024 8192 16 # (Cyl. 146*- 508*) It is taken same results that xx is between 1 and 256. What is happening? Or what am I wrong? Regards, ----- Kazutoshi Kubota <yakk@willbe6.org> To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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