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Date: Tue, 23 Dec 1997 10:56:21 +0100 (MET)
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From: Dick van den Burg <burg@is.ge.com>
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To: freebsd-questions@freebsd.org
Subject: How to add slice to existing FS
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I have the following slices:

burg@vdb:~$ /sbin/fdisk sd0
******* Working on device /dev/rsd0 *******
parameters extracted from in-core disklabel are:
cylinders=1048 heads=127 sectors/track=63 (8001 blks/cyl)
 
Figures below won't work with BIOS for partitions not in cyl 1
parameters to be used for BIOS calculations are:
cylinders=1048 heads=127 sectors/track=63 (8001 blks/cyl)
 
Media sector size is 512
Warning: BIOS sector numbering starts with sector 1
Information from DOS bootblock is:
The data for partition 1 is:
sysid 6,(Primary 'big' DOS (> 32MB))
    start 63, size 1031562 (503 Meg), flag 80
        beg: cyl 0/ sector 1/ head 1;
        end: cyl 128/ sector 63/ head 118
The data for partition 2 is:
sysid 5,(Extended DOS)
    start 1032129, size 1024128 (500 Meg), flag 0
        beg: cyl 129/ sector 1/ head 0;
        end: cyl 256/ sector 63/ head 126
The data for partition 3 is:
sysid 165,(FreeBSD/NetBSD/386BSD)
    start 2056257, size 4800600 (2344 Meg), flag 0
        beg: cyl 257/ sector 1/ head 0;
        end: cyl 856/ sector 63/ head 126
The data for partition 4 is:
sysid 6,(Primary 'big' DOS (> 32MB))
    start 6856857, size 1528191 (746 Meg), flag 0
        beg: cyl 857/ sector 1/ head 0;
        end: cyl 1023/ sector 63/ head 126

I just reclaimed partition (=slice) 4 from a windows installation and
I want to use the 746 Mb for a FreeBSD file system. As slice 3 already
contains a FBSD installation I am at a loss on how to set up a
disklabel such that newfs can set up a filesystem on partition 4.

/usr/home/burg# /sbin/newfs /dev/rsd0s4c
newfs: ioctl (GDINFO): Invalid argument
newfs: /dev/rsd0s4c: can't read disk label; disk type must be specified


Help please ...

Thanks ... Dick