tree 33bbcc6ab99cf3802ec89275a95e23f3db81d56f
parent aedc8fed04d909f32a7ebe4f1ad92dc54b79bbf4
author Milton Miller <miltonm@us.ibm.com> 1500577526 -0500
committer Patrick Williams <patrick@stwcx.xyz> 1503939564 +0000

obmc-initfs shutdown: ping watchdog watchdog during flash update

Add code to start a watchdog daemon before calling the update script
as erasing the flash can take over 10 minutes.  This allows us to
reduce the shutdown timeout to a much more useful value.

The code kills the watchdog after the update script returns and
also resets the timeout to a different value by invoking and killing
the watchdog command a second time.

Tested with the following code added before the reboot -f code and
changing the timoeuts:

	while :
	do
		let count=$count+1
		echo -ne "\rloop $count"
		usleep 100
	done

Change-Id: Ibe2337339af67421733230b6a5b6df962618a00a
Signed-off-by: Milton Miller <miltonm@us.ibm.com>