Sun Microsystems Sun Workstation 100U System Manager's Manual page 218

NEWFS(8)
MAINTENANCE COMMANDS
NEWFS(8)
NAME
newfs - construct a new file system
SYNOPSIS
Jete/newt. ( -v ) [ -n
J (
mitra-option.
J
.peclal ( disk-type
J
DESCRIPTION
New!8 is a "friendly" front-end to the mk!8(8) program. On the VAX, new!8 will look up the type
of disk a file system is being created on in the disk description file
I
etcl di8ktah; on the Sun the
disk type is
determin~d
by reading the disk label. New!8 then calculate the appropriate parame-
ters to use in calling mk!8, then build the file system by forking mk!8 and, if the file system is a
root partition, install the necessary bootstrap programs in the initial 16 sectors of the device.
OPTIONS
FILES
-n Do not instal the bootstrap programs.
-v new!, prints out its actions, including the parameters passed to mk!,.
Options which may be used to override default parameters passed to mk!s are:
-8
alze
The size of the file system in sectors.
-b bloek-alze
The block size of the file system in bytes.
-I Iral-alze
The fragment size of the file system in bytes.
-t #tl'aekl/eyllnder
-e #eyllndel'l/sroup
The number of cylinders per cylinder group in a file system. The default value used is
16.
-m free space %
The percentage of space reserved from normal users; the minimum free space thresh-
hold. The default value used is 10%.
-l'l'evolutlon./mlnute
The speed of the disk in revolutions per minute (normally 36(0).
letc/disktab
for disk geometry and file partition information (VAX only)
/etc/mkfs to actually build the file system
/usr/mdec for boot strapping programs
SEE ALSO
fs(5), fsck(8), tunefs(8)
McKusick, Joy, Lemer; "A Fast File System for Unix", Computer Systems Research Group, Dept
of EECS, Berkeley, CA 94720; TR #7, September 1982.
Sun Release 1.1 Last change: 28 October 1983 63