freebsd-dev/sbin/dumpfs/dumpfs.8
Juli Mallett 87d35aadd9 Add support to marshal a filesystem to a newfs(8) command that could be used
to create it.  A small number of options are not marshalled as they are things
it would be dumb to spit out, as they are used by internal computations, and
newfs may change them, or they may not be directly apparent.
2003-01-19 10:25:11 +00:00

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.\" @(#)dumpfs.8 8.1 (Berkeley) 6/5/93
.\" $FreeBSD$
.\"
.Dd January 19, 2003
.Dt DUMPFS 8
.Os
.Sh NAME
.Nm dumpfs
.Nd dump file system information
.Sh SYNOPSIS
.Nm
.Op Fl m
.Op Ar filesys No \&| Ar device
.Sh DESCRIPTION
The
.Nm
utility prints out the super block and cylinder group information
for the file system or special device specified, unless
.Fl m
is specified.
The listing is very long and detailed. This
command is useful mostly for finding out certain file system
information such as the file system block size and minimum
free space percentage.
.Pp
If
.Fl m
is specified, the filesystem is marshalled in terms of a
.Xr newfs 8
command to generate the filesystem.
.Sh SEE ALSO
.Xr disktab 5 ,
.Xr fs 5 ,
.Xr disklabel 8 ,
.Xr fsck 8 ,
.Xr newfs 8 ,
.Xr tunefs 8
.Sh HISTORY
The
.Nm
utility appeared in
.Bx 4.2 .