-z option help.

[dump.git] / dump / dump.8.in

diff --git a/dump/dump.8.in b/dump/dump.8.in
index dd1df892d381aa5b1234d1e8566d764358496e2f..1ee3c48be94c67ec44c3892d346493a3cf0674df 100644 (file)
--- a/dump/dump.8.in
+++ b/dump/dump.8.in
@@ -30,7 +30,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"    $Id: dump.8.in,v 1.19 2000/12/04 15:43:16 stelian Exp $
+.\"    $Id: dump.8.in,v 1.20 2001/02/21 16:31:47 stelian Exp $
 .\"
 .Dd __DATE__
 .Dt DUMP 8
@@ -40,7 +40,7 @@
 .Nd ext2 filesystem backup
 .Sh SYNOPSIS
 .Nm dump
-.Op Fl 0123456789ackMnSu
+.Op Fl 0123456789ackMnSuz
 .Op Fl B Ar records
 .Op Fl b Ar blocksize
 .Op Fl d Ar density
@@ -315,6 +315,12 @@ Is like
 but prints only recognized filesystems in
 .Pa /etc/fstab
 which need to be dumped.
+.It Fl z
+Compress every block to be written on the tape using zlib library. This
+option will work only if the tape drive is capable of writing variable 
+length blocks. You will need at least the 0.4b22 version of restore in 
+order to extract compressed tapes. Tapes written using compression will
+not be compatible with the BSD tape format.
 .El
 .Pp
 .Nm Dump