Merge pull request #218495 from andrewbrownmsft/andbrown0111522

Updating delta processor instructions

Author: prmerger-automator[bot]

articles/iot-hub-device-update/delta-updates.md

@@ -39,13 +39,7 @@ An update handler integrates with the Device Update agent to perform the actual
 
 The delta processor re-creates the original SWU image file on your device after the delta file has been downloaded, so your update handler can install the SWU file. You'll find all the delta processor code in the [Azure/iot-hub-device-update-delta](https://github.com/Azure/iot-hub-device-update-delta) GitHub repo.
 
-To add the delta processor component to your device image and configure it for use, use apt-get to install the proper Debian package for your platform (it should be named `ms-adu_diffs_x.x.x_amd64.deb` for amd64):  
-
-```bash
-sudo apt-get install <path to Debian package>
-```
-
-Alternatively, on a non-Debian Linux device you can install the shared object (libadudiffapi.so) directly by copying it to the `/usr/lib` directory:  
+To add the delta processor component to your device image and configure it for use, follow the README.md instructions to use CMAKE to build the delta processor from source. From there, install the shared object (libadudiffapi.so) directly by copying it to the `/usr/lib` directory:  
 
 ```bash
 sudo cp <path to libadudiffapi.so> /usr/lib/libadudiffapi.so