<div dir="ltr"><pre style="white-space:pre-wrap;color:rgb(0,0,0)">Stephen Knox wrote:</pre><pre style="white-space:pre-wrap;color:rgb(0,0,0)"><pre style="white-space:pre-wrap">I also have this problem. I get:</pre><pre style="white-space:pre-wrap">Failed to fetch <a href="https://qgis.org/ubuntugis/dists/bionic/InRelease" target="_blank">https://qgis.org/ubuntugis/dists/bionic/InRelease</a> The following signatures couldn't be verified because the public key is not available: NO_PUBKEY F7E06F06199EF2F2</pre>
False alarm, I hadn't realised the keys had updated in the interim and the instructions changed. Had to just follow the instructions from the download site and all worked fine (I also purged the old keys with apt-key del 1C7028C3 for good measure.</pre><pre style="white-space:pre-wrap;color:rgb(0,0,0)">Stephen</pre></div>