findmnt: add to the man page note about SOURCES

References: https://github.com/util-linux/util-linux/pull/1576
Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/misc-utils/findmnt.8.adoc b/misc-utils/findmnt.8.adoc
index de5409eb79d46e7d608b29da60fae66e567f4d55..8d89517cf4b3b789ab4bbbf13bcff1897e756d89 100644 (file)
--- a/misc-utils/findmnt.8.adoc
+++ b/misc-utils/findmnt.8.adoc
@@ -29,6 +29,8 @@ The command-line option *--target* accepts any file or directory and then *findm
 
 The command prints all mounted filesystems in the tree-like format by default.
 
+The relationship between block devices and filesystems is not always one-to-one. The filesystem may use more block devices. This is why *findmnt* provides  SOURCE and SOURCES (pl.) columns. The column SOURCES displays all devices where it is possible to find the same filesystem  UUID (or another tag specified in fstab when executed with --fstab and --evaluate).
+
 == OPTIONS
 
 *-A*, *--all*::