I have a Qt application that runs at start up.  Currently, I update my 
application by allowing the user to press a button inside of my application 
which copies the updated application files from the USB drive to the eMMC. 
 It then sets a flag inside of a text file to "1", and reboots.  When my 
start up script is ran, it firsts checks the text file to see if there is a 
"1", and if so it overwrites the old files with the new ones and then 
launches the application.  This works most of the time, but there are 
occasions where something gets messed up and the new application does not 
start.

I was wondering if there is a better way of updating my application.  Could 
I use opkg to do this, and if so, how?  Will it allow my application to be 
running while it is updating it?  What is the proper way to do this? 
 Thanks in advance for your help!

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