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OpenDarwin 7.2.1 - man page for newfs_hfs (opendarwin section 8)

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NEWFS_HFS(8)			   BSD System Manager's Manual			     NEWFS_HFS(8)

NAME
     newfs_hfs -- construct a new HFS Plus file system

SYNOPSIS
     newfs_hfs [-N] [-U uid] [-G gid] [-M mask] [-h | -w] [-s] [-b block-size]
	       [-c clump-size-list] [-i first-cnid] [-J [journal-size]] [-n node-size-list]
	       [-v volume-name] special

DESCRIPTION
     Newfs_hfs builds an HFS Plus file system on the specified special device.	Before running
     newfs_hfs the disk should be partitioned using the Disk Utility application or pdisk(8).

     The file system default parameters are calculated based on the size of the disk partition.
     Typically the defaults are reasonable, however newfs_hfs has several options to allow the
     defaults to be selectively overridden.  The options are as follows:

     -N 	 Causes the file system parameters to be printed out without really creating the
		 file system.

     -U uid	 Set the owner of the file system's root directory to uid.

     -G gid	 Set the group of the file system's root directory to gid.

     -M mask	 Specify the access permissions mask for the file system's root directory.

     -h 	 Creates a legacy HFS format filesystem. This option is not recomended for file
		 systems that will be primarily used with Mac OS X or Darwin.

     -s 	 Creates a case-sensitive HFS Plus filesystem. By default a case-insensitive
		 filesystem is created.  Case-sensitive HFS Plus file systems require a Mac OS X
		 version of 10.3 (Darwin 7.0) or later.

     -w 	 Adds an HFS wrapper around the HFS Plus file system.  This wrapper is required
		 if the file system will be used to boot natively into Mac OS 9.

     -b block-size
		 The allocation block size of the file system.	The default value is 4096.

     -c clump-size-list
		 This specifies the clump and/or initial sizes, in allocation blocks, for the
		 various metadata files.  Clump sizes are specified with the -c option followed
		 by a comma separated list of the form arg=blocks.

		 Example:  -c c=5000,e=500

		 a=blocks    Set the attribute file clump size.

		 b=blocks    Set the allocation bitmap file clump size.

		 c=blocks    Set the catalog file clump size.

		 e=blocks    Set the extent overflow file clump size.

     -i first-cnid
		 This specifies the initial catalog node ID for user files and directories. The
		 default value is 16.

     -J [journal-size]
		 Creates a journaled HFS+ volume.  The default journal size is 8MB.  Appending an
		 'M' to the journal size implies megabytes (i.e. 64M is 64 megabytes).	The maxi-
		 mum journal size is 512 megabytes.

     -n node-size-list
		 This specifies the b-tree node sizes, in bytes, for the various b-tree files.
		 Node sizes are specified with the -n option followed by a comma separated list
		 of the form arg=bytes. The node size must be a power of two and no larger than
		 32768 bytes.

		 Example:  -n c=8192,e=4096

		 a=bytes     Set the attribute b-tree node size.

		 c=bytes     Set the catalog b-tree node size.

		 e=bytes     Set the extent overflow b-tree node size.

     -v volume-name
		 Volume name (file system name) in ascii or UTF-8 format.

SEE ALSO
     mount(8), pdisk(8)

HISTORY
     The newfs_hfs command appeared in Mac OS X Server 1.0 .

Mac OS X				  April 1, 2003 				 Mac OS X
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