Fixed restore of Solaris 7 ufsdump.

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

diff --git a/dump/dump.8.in b/dump/dump.8.in
index 13b1e52ee2611f5e24c604e6e985acf46dba5191..da2ba2e2902535824ae8629d1b3ded1f6da5ccf6 100644 (file)
--- a/dump/dump.8.in
+++ b/dump/dump.8.in
@@ -26,7 +26,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"    $Id: dump.8.in,v 1.51 2003/03/30 15:40:35 stelian Exp $
+.\"    $Id: dump.8.in,v 1.53 2003/05/07 14:45:20 stelian Exp $
 .\"
 .TH DUMP 8 "version __VERSION__ of __DATE__" BSD "System management commands"
 .SH NAME
@@ -50,6 +50,7 @@ dump \- ext2/3 filesystem backup
 [\fB\-Q \fIfile\fR]
 [\fB\-s \fIfeet\fR]
 [\fB\-T \fIdate\fR]
+[\fB\-y\fR]
 [\fB\-z\fIcompression level\fR]
 .I files-to-dump
 .PP
@@ -112,8 +113,11 @@ to be used by
 to determine whether a file is in the dump file that is being restored.
 .TP
 .BI \-b " blocksize"
-The number of kilobytes per dump record. The default blocksize is 10
-and the maximal value is 1024.
+The number of kilobytes per dump record. The default blocksize is 10,
+unless the
+.B \-d
+option has been used to specify a tape density of 6250BPI or more,
+in which case the default blocksize is 32. Th maximal value is 1024.
 Note however that, since the IO system slices all requests into chunks
 of 
 .B MAXBSIZE
@@ -436,6 +440,16 @@ and
 .I /etc/fstab
 which need to be dumped.
 .TP
+.BI \-y
+Compress every block to be written to the tape using the lzo library.
+This doesn't compress as well as the zlib library but it's much faster.
+This option will work only when dumping to a file or pipe or, when dumping to
+a tape drive, if the tape drive is capable of writing variable length blocks.
+You will need at least the 0.4b34 version of
+.B restore
+in order to extract compressed tapes. Tapes written using compression will not
+be compatible with the BSD tape format.
+.TP
 .BI \-z "compression level"
 Compress every block to be written on the tape using zlib library. This option
 will work only when dumping to a file or pipe or, when dumping to a tape drive,