<div dir="ltr">I am getting this ??<div><br></div><div>Get:51 <a href="http://us.archive.ubuntu.com/ubuntu">http://us.archive.ubuntu.com/ubuntu</a> focal-security/multiverse Translation-en [5796 B]<br>Get:52 <a href="http://us.archive.ubuntu.com/ubuntu">http://us.archive.ubuntu.com/ubuntu</a> focal-security/multiverse amd64 c-n-f Metadata [548 B]<br>Fetched 547 MB in 1min 16s (7207 kB/s)<br>Reading package lists...<br>Checking for a new Ubuntu release<br>Get:1 Upgrade tool signature [833 B]                                                                                                                            <br>Get:2 Upgrade tool [1268 B]                                                                                                                                     <br>Fetched 2101 B in 0s (0 B/s)                                                                                                                                    <br>authenticate 'jammy.tar.gz' against 'jammy.tar.gz.gpg' <br>Authentication failed<br>Authenticating the upgrade failed. There may be a problem with the network or with the server. <br>Reading package lists...<br>Building dependency tree...<br>Reading state information...<br></div><div><br></div><div><br></div><div>What do I do with that ?  The 20.04 is fully updated.</div><div><br></div><div>Jerry</div></div>