Got the Raspbian Stretch image installed to my Pi 3B and followed the directions (below) from the readme file at: <http://dvswitch.org/files/ASL_Images/Raspberry_Pi/Stretch/2018-03-13-raspbi an-stretch.readme>: "This is the last Raspbian Stretch version that supports OSS which is required for AllStarLink. When Raspbian installs the kernel headers, again required for AllStarLink, it installs the latest, NOT the kernel headers for the running kernel. To add the proper kernel headers to the Stretch image, you should do the following as root: cd /tmp wget http://dvswitch.org/files/ASL_Images/Raspberry_Pi/Stretch/raspberrypi-kernel -headers_1.20171029-1_armhf.deb dpkg -i raspberrypi-kernel-headers_1.20171029-1_armhf.deb Once this completes: apt-mark hold raspberrypi-kernel-headers raspberrypi-kernel apt-get update apt-get upgrade -y reboot" All of this seemed to go as expected, but when I rebooted, I received a notice that the latest image had been installed. Did that just undo the changes I made above? If so, how do I prevent that from happening? Sorry, I'm not a Linux guy; just trying to muddle through. 73, Mike WM4B