[OpenWrt-Devel] [PATCH] fstools: allow to stack another overlay on top of existing one

[Roman Yeryomin]

`mount_root ram' will pivot existing root to ram even if it was
overlayfs already. Useful when playing with new configurations
as it allows to preserve existing/stable configuration.

Signed-off-by: Roman Yeryomin <roman at advem.lv>
---
 mount_root.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mount_root.c b/mount_root.c
index 7b69c7f..bf70265 100644
--- a/mount_root.c
+++ b/mount_root.c
@@ -117,6 +117,8 @@ int main(int argc, char **argv)
 {
 	if (argc < 2)
 		return start(argc, argv);
+	if (!strcmp(argv[1], "ram"))
+		return ramoverlay();
 	if (!strcmp(argv[1], "stop"))
 		return stop(argc, argv);
 	if (!strcmp(argv[1], "done"))
-- 
2.5.0
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