HardenedBSD/sbin/newlfs/newlfs.8
1996-05-12 11:12:17 +00:00

99 lines
3.3 KiB
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.\" Copyright (c) 1993
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.\" @(#)newlfs.8 8.1 (Berkeley) 6/19/93
.\"
.Dd June 19, 1993
.Dt NEWLFS 8
.Os BSD 4.4
.Sh NAME
.Nm newlfs
.Nd construct a new LFS file system
.Sh SYNOPSIS
.Nm newlfs
.Fl L
.Op Ar newlfs-options
.Ar special
.Sh DESCRIPTION
.Nm Newlfs
builds a log-structured file system on the specified special
device basing its defaults on the information in the disk label.
(Before running
.Nm newlfs
the disk must be labeled using
.Xr disklabel 8 .)
.Pp
The following options define the general layout policies.
.Bl -tag -width Fl
.It Fl B
The logical segment size of the file system in bytes.
.It Fl b Ar block-size
The block size of the file system in bytes.
.It Fl L
Create a log-structured file system (LFS).
This flag is currently required.
.It Fl m Ar free space \&%
The percentage of space reserved from normal users; the minimum
free space threshold. The default value used is 10%.
See
.Xr tunefs 8
for more details on how to set this option.
.It Fl s Ar size
The size of the file system in sectors.
.El
.Sh SEE ALSO
.Xr disktab 5 ,
.Xr fs 5 ,
.Xr dumplfs 8 ,
.Xr disklabel 8 ,
.Xr diskpart 8 ,
.Xr tunefs 8
.Rs
.%A M. McKusick
.%A W. Joy
.%A S. Leffler
.%A R. Fabry
.%T A Fast File System for UNIX ,
.%J ACM Transactions on Computer Systems 2
.%V 3
.%P pp 181-197
.%D August 1984
.%O (reprinted in the BSD System Manager's Manual)
.Re
.Sh BUGS
LFS does not currently work in any variant of FreeBSD and should therefore
not be used.
.Sh HISTORY
The
.Nm
command appeared in
.Bx 4.4 .