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Under normal udev operation, device nodes are obviously timestamped based on the system time at current boot. However, when using udev-cache, they are timestamped from a previous boot. The existence of machines lacking RTCs makes this more than a cosmetic issue: if the current time is set further on in the boot, so that the system time is still 1970 by the time the cache is extracted, tar will print a timestamp warning for every extracted file (potentially hundreds of them). To fix, use -m on extract. If using busybox `tar`, this commit requires CONFIG_FEATURE_TAR_NOPRESERVE_TIME=y. (From OE-Core rev: b31f8f1f053cdfa9428e3f667c05e7e2c600061e) Signed-off-by: Richard Tollerton <rich.tollerton@ni.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>