Repositories for Raspbian (Debian Stretch) no longer supported

This is a note on the Raspbian release, but probably will need a similar action for any other ones so expired support

/etc/apt/sources.list
comment out "raspbian" entry and add "legacy" one.

-- old

deb http://raspbian.raspberrypi.org/raspbian/ stretch main contrib non-free rpi

-- should be

deb http://legacy.raspbian.org/raspbian/ stretch main contrib non-free rpi

need to do apt-update

--30--

show repositories on Ubuntu (and others)

 

 

debian

grep ^[^#] /etc/apt/sources.list /etc/apt/sources.list.d/*

 

https://www.networkworld.com/article/3305810/how-to-list-repositories-on-linux.html

 

Fix GPG signatures

sudo apt-key list  | grep "expired: " | sed -ne 's|pub .*/\([^ ]*\) .*|\1|gp' | xargs -n1 sudo apt-key adv --keyserver keys.gnupg.net --recv-keys

 

https://askubuntu.com/questions/650032/gpg-errorthe-following-signatures-were-invalid-keyexpired 

 

general apt structure is in:

/etc/apt

 

--30--

 

Google GPG error in update of repos for Ubuntu 16.04

 

Looks like ubuntu has fouled up the capability to do pgp analysis on keys from repositories because on the 16.06 they have obsoleted the code to do the verification.

https://www.omgubuntu.co.uk/2017/08/fix-google-gpg-key-linux-repository-error 

 

--30--