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>
readfiles /etc/udev/cache.data
OLDDATA="$READDATA"
if [ "$OLDDATA" = "$NEWDATA" ]; then
- (cd /; tar xf $DEVCACHE > /dev/null 2>&1)
+ (cd /; tar xmf $DEVCACHE > /dev/null 2>&1)
not_first_boot=1
[ "$VERBOSE" != "no" ] && echo "udev: using cache file $DEVCACHE"
[ -e /dev/shm/udev.cache ] && rm -f /dev/shm/udev.cache