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1.1       root        1: .TH NEWFS 8 "20 February 1983"
                      2: .UC 4
                      3: .SH NAME
                      4: newfs \- construct a new file system
                      5: .SH SYNOPSIS
                      6: .B /etc/newfs
                      7: [
                      8: .B \-v
                      9: ] [
                     10: .B \-n
                     11: ] [
                     12: .B mkfs-options
                     13: ]
                     14: .B special disk-type
                     15: .SH DESCRIPTION
                     16: .I Newfs
                     17: is a ``friendly'' front-end to the
                     18: .IR mkfs (8)
                     19: program.
                     20: .I Newfs
                     21: will look up the type of disk a file system is
                     22: being created on in the disk description
                     23: file
                     24: .IR /etc/disktab ,
                     25: calculate the appropriate
                     26: parameters to use in calling
                     27: .IR mkfs ,
                     28: then build the file system by forking 
                     29: .I mkfs 
                     30: and, if the file system is a root partition,
                     31: install the necessary bootstrap programs
                     32: in the initial 8 sectors of the device.
                     33: The
                     34: .B \-n
                     35: option prevents the 
                     36: bootstrap programs from being installed.
                     37: .PP
                     38: If the 
                     39: .B \-v
                     40: option is supplied, 
                     41: .I newfs
                     42: will print out its actions, including
                     43: the parameters passed to
                     44: .IR mkfs .
                     45: .PP
                     46: Options which may be used to override default
                     47: parameters passed to
                     48: .I mkfs
                     49: are:
                     50: .TP 10
                     51: .B \-s size
                     52: The size of the file system in sectors.
                     53: .TP 10
                     54: .B \-b block-size
                     55: The block size of the file system in bytes.  
                     56: .TP 10
                     57: .B \-f frag-size
                     58: The fragment size of the file system in bytes.
                     59: .TP 10
                     60: .B \-t #tracks/cylinder
                     61: .TP 10
                     62: .B \-c #cylinders/group
                     63: The number of cylinders per cylinder group in a file system.
                     64: The default value used is 16.
                     65: .TP 10
                     66: .B \-m free space %
                     67: The percentage of space reserved from normal users; the minimum
                     68: free space threshhold.  The default value used is 10%.
                     69: .TP 10
                     70: .B \-r revolutions/minute
                     71: The speed of the disk in revolutions per minute (normally 3600).
                     72: .TP 10
                     73: .B \-S sector-size
                     74: The size of a sector in bytes (almost never anything but 512).
                     75: .TP 10
                     76: .B \-i number of bytes per inode
                     77: This specifies the density of inodes in the file system.
                     78: The default is to create an inode for each 2048 bytes of data space.
                     79: If fewer inodes are desired, a larger number should be used;
                     80: to create more inodes a smaller number should be given.
                     81: .SH FILES
                     82: /etc/disktab   for disk geometry and file system partition information 
                     83: .br
                     84: /etc/mkfs      to actually build the file system
                     85: .br
                     86: /usr/mdec      for boot strapping programs
                     87: .SH "SEE ALSO"
                     88: disktab(5),
                     89: fs(5),
                     90: fsck(8),
                     91: vdformat(8S),
                     92: mkfs(8),
                     93: tunefs(8)
                     94: .PP
                     95: McKusick, Joy, Leffler; "A Fast File System for Unix",
                     96: Computer Systems Research Group, Dept of EECS, Berkeley, CA 94720;
                     97: TR #7, September 1982.
                     98: .SH BUGS
                     99: Should figure out the type of the disk without the user's help.

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