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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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