newlfs(8) - NetBSD Manual Pages

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NEWLFS(8)               NetBSD System Manager's Manual               NEWLFS(8)


NAME

     newlfs - construct a new LFS file system


SYNOPSIS

     newlfs -L [newlfs-options] special


DESCRIPTION

     newlfs builds a log-structured file system on the specified special de-
     vice basing its defaults on the information in the disk label.  (Before
     running newlfs the disk must be labeled using disklabel(8).)

     The following options define the general layout policies.

     -B          The logical segment size of the file system in bytes.

     -b block-size
                 The block size of the file system in bytes.

     -L          Create a log-structured file system (LFS).  This flag is cur-
                 rently required.

     -m free space %
                 The percentage of space reserved from normal users; the mini-
                 mum free space threshold.  The default value used is 10%.
                 See tunefs(8) for more details on how to set this option.

     -s size     The size of the file system in sectors.


SEE ALSO

     disktab(5),  fs(5),  dumplfs(8),  disklabel(8),  diskpart(8),  tunefs(8)

     M. McKusick, W. Joy, S. Leffler, and R. Fabry, "A Fast File System for
     UNIX,", ACM Transactions on Computer Systems 2, 3, pp 181-197, August
     1984, (reprinted in the BSD System Manager's Manual).


HISTORY

     The newlfs command appeared in 4.4BSD.

4.4BSD                           June 19, 1993                               1