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--- Begin Message ---
When a FW upgrade is performed without keeping the
current config, the temporary overlay directory is
eventually empty and causes the archive copy to /
to fail. This has no functional impact but adds a
false 'failed to sync jffs2 overlay' to the error
log.
Fix this by explicitly checking for the directory
to exist and being non-empty.
Signed-off-by: Zefir Kurtisi <zefir.kurt...@westermo.com>
---
libfstools/overlay.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/libfstools/overlay.c b/libfstools/overlay.c
index eadafcf..d3987a8 100644
--- a/libfstools/overlay.c
+++ b/libfstools/overlay.c
@@ -315,6 +315,11 @@ jffs2_switch(struct volume *v)
umount2("/tmp/root", MNT_DETACH);
foreachdir("/overlay/", handle_whiteout);
+ /* prevent below cp command failing with empty temporary
overlay */
+ if (system("[ ! -d /tmp/root/upper ] || [ -z \"$(ls -A
/tmp/root/upper/)\" ]")) {
+ ULOG_INFO("temporary overlay empty\n");
+ break;
+ }
/* try hard to be in sync */
ULOG_INFO("syncronizing overlay\n");
if (system("cp -a /tmp/root/upper/* / 2>/dev/null"))
--
2.17.1
--- End Message ---
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