Improve documentation of zpool import -d/-c vs -s

Specify that, by default, zpool import uses the libblkid
cache on Linux and geom on FreeBSD, and only scans when
-d/-s is provided.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <freqlabs@FreeBSD.org>
Signed-off-by: Chris McDonough <chrism@plope.com>
Closes #7656
Closes #10771

diff --git a/man/man8/zpool-import.8 b/man/man8/zpool-import.8
index 6db5b0a455dbf055ad568bae3865899a725729d7..e63db9363fd000916e8c3c9194adfe4240583aa4 100644 (file)
--- a/man/man8/zpool-import.8
+++ b/man/man8/zpool-import.8
@@ -70,9 +70,10 @@
 .Xc
 Lists pools available to import.
 If the
-.Fl d
-option is not specified, this command searches for devices in
-.Pa /dev .
+.Fl d or
+.Fl c
+options are not specified, this command searches for devices using libblkid
+on Linux and geom on FreeBSD.
 The
 .Fl d
 option can be specified multiple times, and all directories are searched.