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I've been trying to upgrade my ubuntu 11.04 desktop computer, but when I click on the ugrade button:

enter image description here

I get this error:

I've tryied to change my repositories, but it changes nothing in the error((on the "setting new software channel"). enter image description here

Can someone point me in the right direction?

This is my sources.list:

# deb http://ppa.launchpad.net/ailurus/ppa/ubuntu karmic main # disabled on upgrade to karmic
# deb-src http://ppa.launchpad.net/ailurus/ppa/ubuntu karmic main # disabled on upgrade to karmic

# deb cdrom:[Ubuntu 9.04 _Jaunty Jackalope_ - Release i386 (20090421.3)]/ jaunty main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.

deb http://us.archive.ubuntu.com/ubuntu/ natty main restricted multiverse universe

## Major bug fix updates produced after the final release of the
## distribution. deb http://us.archive.ubuntu.com/ubuntu/ natty-updates main restricted multiverse universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu 
## team, and may not be under a free licence. Please satisfy yourself as to 
## your rights to use the software. Also, please note that software in 
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.

## Uncomment the following two lines to add software from the 'backports'
## repository.
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team. deb-src http://pt.archive.ubuntu.com/ubuntu/ jaunty-backports main restricted universe multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users. deb http://archive.canonical.com/ubuntu natty partner deb-src http://archive.canonical.com/ubuntu natty partner

deb http://us.archive.ubuntu.com/ubuntu/ natty-security main restricted multiverse universe deb http://us.archive.ubuntu.com/ubuntu/ natty-proposed restricted main multiverse universe
# deb http://deb.torproject.org/torproject.org karmic main # disabled on upgrade to maverick
# deb-src http://deb.torproject.org/torproject.org karmic main # disabled on upgrade to maverick deb http://extras.ubuntu.com/ubuntu natty main #Third party developers repository
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1  
Remove jaunty repositories from your repository list –  hbdgaf Apr 18 '12 at 20:38
    
@aking1012 I can't find any mention of jaunty anywhere... Added my source.list do the question –  Krazy_Kaos Apr 18 '12 at 21:15
    
@aking1012 I know it's a noob question, but how do I open the file (in the gui) with root privilegues? (I can only read the file, not write) –  Krazy_Kaos Apr 19 '12 at 9:56
    
Updating without a problem as I write this, if you right it as an answer, I'll give you the points.and also THANK YOU VERY MUCH –  Krazy_Kaos Apr 19 '12 at 18:47
    
No problem. Glad it worked out –  hbdgaf Apr 19 '12 at 19:53

2 Answers 2

up vote 2 down vote accepted

You need to remove any jaunty related repositories from your sources list or sources list.d/*.
The reason I jump straight for jaunty is that in your screenshot, the archives that are failing have jau as the start of the distribution name.

It may be finding deb-src http://pt.archive.ubuntu.com/ubuntu/ jaunty-backports main restricted universe multiverse or there may be something else in your sources.list.d.

You can edit your /etc/sources.list.d with a text editor like this. If you're going to edit it make a copy first. Like that answer says, you need to be very careful editing system configuration files.

share|improve this answer

Check if you can ping pt.archive.ubuntu.com, if this does not work ... try modifying your

/etc/apt/sources.list

to remove references for "pt" and leave "archive.ubuntu.com". This will effect your download speed for new installs and updates but it may resolve the issue.

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Ping was OK,no problem there... –  Krazy_Kaos Apr 18 '12 at 20:56

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