<div dir="ltr"><div>JD,</div><div><br></div>I see two problems: A missing signature and a redundant source (12.04 LTS CD).<div><br></div><div>Can you tell us - did you upgrade from 12.04 to 12.10?</div><div><br></div><div>
Do you still have the signature error?</div><div><br></div><div>Follow Collin's instructions to remove the CD as a source, even if you have 12.04 installed - it is only needed for the installation.</div><div><br></div>
<div>BTW: I *never* go through the upgrade process - too many things usually go wrong. I have my root partition (/) separate from my data and home partitions, so I just install from fresh and choose to format only the root partition. I always backup, but never lost any files (doing it this way since 7.04).</div>
<div><br></div><div>I'd install the Y PPA Manager [1] to backup all sources lists (built in and external) before the move, then install said manager as the first thing after the fresh install and initial updates to re-activate the sources I had, then run an update again.</div>
<div><br></div><div>I trust the apt-get mechanism completely to make a clean update / upgrade / dist-upgrade cycle.</div><div><br></div><div>Hey, I might even write a HOWTO for the process...</div><div><br></div><div>Good luck!</div>
<div><br></div><div>[1] <a href="http://www.webupd8.org/2010/11/y-ppa-manager-easily-search-add-remove.html">http://www.webupd8.org/2010/11/y-ppa-manager-easily-search-add-remove.html</a></div><div><br><div><br><div id="WISESTAMP_SIG_5855">
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</table><div style="clear:both"></div></div></div></div></div></div></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Dec 7, 2012 at 11:20 AM, Colin Law <span dir="ltr"><<a href="mailto:clanlaw@googlemail.com" target="_blank">clanlaw@googlemail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">On 7 December <a href="tel:2012" value="+9722012">2012</a> 03:32, JD <<a href="mailto:jd1008@gmail.com">jd1008@gmail.com</a>> wrote:<br>
> This is the error message:<br>
><br>
> W:GPG error: <a href="http://repo.mate-desktop.org" target="_blank">http://repo.mate-desktop.org</a> quantal InRelease: The following<br>
> signatures couldn't be verified because the public key is not available:<br>
> NO_PUBKEY 68980A0EA10B4DE8,<br>
> W:GPG error: <a href="http://packages.mate-desktop.org" target="_blank">http://packages.mate-desktop.org</a> quantal Release: The following<br>
> signatures couldn't be verified because the public key is not available:<br>
> NO_PUBKEY 68980A0EA10B4DE8,<br>
> W:Failed to fetch cdrom://Ubuntu 12.04 LTS _Precise Pangolin_ - Release i386<br>
> (20120423)/dists/precise/main/binary-i386/Packages Please use apt-cdrom to<br>
> make this CD-ROM recognized by APT. apt-get update cannot be used to add new<br>
> CD-ROMs,<br>
> W:Failed to fetch cdrom://Ubuntu 12.04 LTS _Precise Pangolin_ - Release i386<br>
> (20120423)/dists/precise/restricted/binary-i386/Packages Please use<br>
> apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be<br>
> used to add new CD-ROMs,<br>
> E:Some index files failed to download. They have been ignored, or old ones<br>
> used instead.<br>
><br>
> Question is why is it looking for<br>
> cdrom://Ubuntu 12.04 LTS _Precise Pangolin_ - Release i386<br>
> (20120423)/dists/precise/restricted/binary-i386/Packages<br>
<br>
</div>In System Settings > Software Sources check that the CD is not<br>
selected as a source in any of the tabs.<br>
<span class="HOEnZb"><font color="#888888"><br>
Colin<br>
</font></span><div class="HOEnZb"><div class="h5"><br>
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