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-rw-r--r--sys-utils/umount.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sys-utils/umount.c b/sys-utils/umount.c
index 629c65df8..991adf760 100644
--- a/sys-utils/umount.c
+++ b/sys-utils/umount.c
@@ -100,6 +100,7 @@ static void __attribute__((__noreturn__)) usage(void)
fputs(_(" -r, --read-only in case unmounting fails, try to remount read-only\n"), out);
fputs(_(" -t, --types <list> limit the set of filesystem types\n"), out);
fputs(_(" -v, --verbose say what is being done\n"), out);
+ fputs(_(" -N, --namespace <ns> perform umount in another namespace\n"), out);
fputs(USAGE_SEPARATOR, out);
printf(USAGE_HELP_OPTIONS(25));