<html><head></head><body><div><br></div><div>On Mon, 2018-10-08 at 16:42 +0200, Liam Proven wrote:</div><blockquote type="cite"><pre>On Wed, 3 Oct 2018 at 12:06, Charles IRONS <<a href="mailto:irons.charles@gmail.com">irons.charles@gmail.com</a>> wrote:
<blockquote type="cite">
Hello Liam Proven & others
Thanks. I have just discovered ubuntu-users again and read your replies to my issue.
I have used the last advice from Liam and saved the output because there were some warnings. Please check those marked with ????????????
I am keen to upgrade to 18.04.1 but want to be sure 16.04 is fixed first.
Thanks for helping an old retired end user.
</blockquote>
Best not to send attachments to mailing lists, by the way. Most block
them. I'm surprised it worked.
The error is what it says. You have some repositories listed more than
once in your repository config files.
You need to go through
/etc/apt/sources.list
and all the files in the folder
/etc/apt/sources.list.d
</pre></blockquote><blockquote type="cite"><pre>
... and check for duplicate lines. If there are any, comment out all
but one by inserting a # at the begi
</pre></blockquote><div>Hello again Liam</div><div><br></div><div>I am still lost. When I read /etc/apt/sources.list , I don't know what may be a duplicate. For example;</div><div><br></div><div>deb <a href="http://mirror.wiru.co.za/ubuntu/">http://mirror.wiru.co.za/ubuntu/</a> xenial universe</div><div>deb-src <a href="http://mirror.wiru.co.za/ubuntu/">http://mirror.wiru.co.za/ubuntu/</a> xenial universe</div><div><br></div><div>Is the second line a duplicate? If not, there are no actual duplicates in /etc/apt/sources.list</div><div><br></div><div>Similarly, files in /etc/apt/sources.list.d :</div><div>opera-stable.list, opera-stable.list.distUpgrade, opera-stable.list.save, xenial-partner.list and xenial-partner.list.save</div><div>do show what look identical except that they seem to be for different purposes..</div><div><br></div><blockquote type="cite"><pre>> deb <a href="https://deb.opera.com/opera-stable/">https://deb.opera.com/opera-stable/</a> stable non-free #Opera<br class="-x-evo-wrap-br">> Browser (final releases) disabled on upgrade to xenial</pre><pre>> deb <a href="https://deb.opera.com/opera-stable/">https://deb.opera.com/opera-stable/</a> stable non-free #Opera<br class="-x-evo-wrap-br">> Browser (final releases)</pre><pre>> deb <a href="https://deb.opera.com/opera-stable/">https://deb.opera.com/opera-stable/</a> stable non-free #Opera<br class="-x-evo-wrap-br">> Browser (final releases) disabled on upgrade to xenial</pre><pre>> deb <a href="http://archive.canonical.com/ubuntu">http://archive.canonical.com/ubuntu</a> xenial partner</pre><pre>> deb <a href="http://archive.canonical.com/ubuntu">http://archive.canonical.com/ubuntu</a> xenial partner<br class="-x-evo-temp-wrap-text-br"></pre></blockquote><div><br></div><div>I hope all this is correctly copied for your scrutiny.</div><div>Thanks again for your advice.</div><div><br></div><div><br></div></body></html>