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-rw-r--r--disk-utils/sfdisk.812
1 files changed, 8 insertions, 4 deletions
diff --git a/disk-utils/sfdisk.8 b/disk-utils/sfdisk.8
index 5266ca744..31f64fd79 100644
--- a/disk-utils/sfdisk.8
+++ b/disk-utils/sfdisk.8
@@ -78,10 +78,14 @@ partitions may be smaller. In this case \fBsfdisk\fR follows the default
values from the partition table and does not use built-in defaults for the
unused partition given with \fB\-N\fR. See also \fB\-\-append\fR.
.TP
-.BR \-A , " \-\-activate \fIdevice " [ \fIpartition-number ...]
-Switch on the bootable flag for the specified partitions.
-If no \fIpartition-number\fR is specified,
-then list the partitions with an enabled flag.
+.BR \-A , " \-\-activate \fIdevice " [ \fIpartition-number...]
+Switch on the bootable flag for the specified partitions and switch off the
+bootable flag on all unspecified partitions. The special placeholder '-'
+may be used instead of the partition numbers to switch off the bootable flag
+on all partitions.
+
+If no \fIpartition-number\fR is specified, then list the partitions with an
+enabled flag.
.TP
.BR "\-\-delete \fIdevice " [ \fIpartition-number ...]
Delete all or the specified partitions.