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-rw-r--r--libmount/src/optmap.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/libmount/src/optmap.c b/libmount/src/optmap.c
index 4f11ce598..68217cebe 100644
--- a/libmount/src/optmap.c
+++ b/libmount/src/optmap.c
@@ -137,6 +137,10 @@ static const struct libmnt_optmap userspace_opts_map[] =
{ "group", MNT_MS_GROUP, MNT_NOMTAB }, /* Let the group of the device mount */
{ "nogroup", MNT_MS_GROUP, MNT_INVERT | MNT_NOMTAB }, /* Device group has no special privs */
+ /*
+ * Note that traditional init scripts assume _netdev option in /etc/mtab to
+ * umount network block devices on shutdown.
+ */
{ "_netdev", MNT_MS_NETDEV }, /* Device requires network */
{ "comment=", MNT_MS_COMMENT, MNT_NOHLPS | MNT_NOMTAB },/* fstab comment only */