When using the `sudo apt-get install` method for the Zigbee Gateway and Thread Border Router reference designs the following error is likely to come up:
W: An error occurred during the signature verification. The repository
is not updated and the previous index files will be used. GPG error:
http://devtools.silabs.com jessie InRelease: The following signatures
couldn't be verified because the public key is not available: NO_PUBKEY
7378FB7890CE4F77 W: Failed to fetch http://devtools.silabs.com/solutions/apt/dists/jessie/InRelease W: Some index files failed to download. They have been ignored, or old
ones used instead.
This is because the aptly server used was updated, and keys were changed in the process. To get around this error just run the following command, and try the apt-get update again:
sudo apt-key adv --keyserver keyserver.ubuntu.com --receive-keys 90CE4F77
Thanks, appreciate that.
BTW, how do I know key '90CE4F77' this solution or where I know this key number ?
This is in the UG129 Zigbee Gateway Reference Design User's Guide document, section 2.1 step 12. Note that this key has also changed in the latest version to `DE864524`.