Software updated failed

[Amichai Rotman]

JD,

I see two problems: A missing signature and a redundant source (12.04 LTS
CD).

Can you tell us - did you upgrade from 12.04 to 12.10?

Do you still have the signature error?

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.

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).

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.

I trust the apt-get mechanism completely to make a clean update / upgrade /
dist-upgrade cycle.

Hey, I might even write a HOWTO for the process...

Good luck!

[1]
http://www.webupd8.org/2010/11/y-ppa-manager-easily-search-add-remove.html


  Amichai Rotman
 Penguin - FLOSS Computer Service and Technical Consulting
 +972-73-7962360 ||  +972-54-4605787


On Fri, Dec 7, 2012 at 11:20 AM, Colin Law <clanlaw at googlemail.com> wrote:

> On 7 December 2012 03:32, JD <jd1008 at gmail.com> wrote:
> > This is the error message:
> >
> > W:GPG error: http://repo.mate-desktop.org quantal InRelease: The
> following
> > signatures couldn't be verified because the public key is not available:
> > NO_PUBKEY 68980A0EA10B4DE8,
> > W:GPG error: http://packages.mate-desktop.org quantal Release: The
> following
> > signatures couldn't be verified because the public key is not available:
> > NO_PUBKEY 68980A0EA10B4DE8,
> > W:Failed to fetch cdrom://Ubuntu 12.04 LTS _Precise Pangolin_ - Release
> i386
> > (20120423)/dists/precise/main/binary-i386/Packages Please use apt-cdrom
> to
> > make this CD-ROM recognized by APT. apt-get update cannot be used to add
> new
> > CD-ROMs,
> > W:Failed to fetch cdrom://Ubuntu 12.04 LTS _Precise Pangolin_ - Release
> i386
> > (20120423)/dists/precise/restricted/binary-i386/Packages  Please use
> > apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be
> > used to add new CD-ROMs,
> > E:Some index files failed to download. They have been ignored, or old
> ones
> > used instead.
> >
> > Question is why is it looking for
> > cdrom://Ubuntu 12.04 LTS _Precise Pangolin_ - Release i386
> > (20120423)/dists/precise/restricted/binary-i386/Packages
>
> In System Settings > Software Sources check that the CD is not
> selected as a source in any of the tabs.
>
> Colin
>
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