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-rw-r--r--sbin/dump/dump.811
1 files changed, 10 insertions, 1 deletions
diff --git a/sbin/dump/dump.8 b/sbin/dump/dump.8
index 7fdd2c0..82e55c6 100644
--- a/sbin/dump/dump.8
+++ b/sbin/dump/dump.8
@@ -42,7 +42,7 @@
.Nd file system backup
.Sh SYNOPSIS
.Nm
-.Op Fl 0123456789acknSu
+.Op Fl 0123456789ackLnSu
.Op Fl B Ar records
.Op Fl b Ar blocksize
.Op Fl D Ar dumpdates
@@ -194,6 +194,15 @@ Use Kerberos authentication to talk to remote tape servers. (Only
available if this option was enabled when
.Nm
was compiled.)
+.It Fl L
+This option is to notify
+.Nm
+that it is dumping a live filesystem.
+To obtain a consistent dump image,
+.Nm
+takes a snapshot of the filesystem and
+then does a dump of the snapshot.
+The snapshot is removed when the dump is complete.
.It Fl n
Whenever
.Nm
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