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Upgraded from 10.04 to 10.10 by mistake and am having problems with some of my programs. They either don't work or they disappear from view on the screen.

The Repositories menu item in Synaptic Packages Manager is a case in point. The computer does nothing when I choose this item. I am locked out of unless I edit /etc/apt/sources.list. The rest of the application seems to work, however.

Update Manager just flashes on screen then disappears without doing, as does Printing.

How do I downgrade from a higher to a lower level repository? I need to downgrade from 10.10 to 10.04.

Each time Ubuntu upgrades to 10.10 evil things happen and the operating system really gets messed up. I really do not want to have to erase and install my operating system all over again if I can help it.

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you can't downgrade – Uri Herrera May 18 '11 at 4:27
can you do a sudo apt-get check ? Also, you can try upgrading to 11.04. – theTuxRacer May 18 '11 at 7:31
sudo apt-get check did not do anything --- was it supposed to? – ken1943 May 19 '11 at 0:28
sudo apt-get check did not do anything --- was it supposed to? Also, no one answered the main thrust of my question, to wit, Printing, and Update do not work and I am locked out of my Repositories. An honest reading of all my questions would greatly be appreciated. They are all tied into each other. – ken1943 May 19 '11 at 0:36
This question appears to be abandoned and unanswered, could you perhaps add more detail to your question? If you are experiencing a similar issue please ask a new question with details pertaining to your problem. If you feel this question is not abandoned, then please flag explaining that (as well as editing your question with any details you have). – jrg♦ Jan 27 '12 at 1:52

closed as too localized by jrg♦, htorque, Jacob Johan Edwards, jokerdino♦, Octavian Damiean Jan 27 '12 at 9:58

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, see the FAQ.

1 Answer

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  • First. Imho a downgrade from 10.10 to 10.04 is not recommended/possible. Imagine you would have to force a donwngrade of most of your software.

  • After an upgrade you should still have the last running kernel of you previous Ubuntu version installed on your system. In your case, you should be able to start your last 10.04 kernel on boot (left 'shift' key after Computer boot screen --> GRUB)

  • Not all you sources are in /etc/apt/sources.list. You will find a lot of sources in the /etc/apt/sources.list.d folder. I would try to rename this folder or backup/delete its content and do a 'sudo apt-get update' in a console. You might have some source problems, preventing the repositories menu to show the content.

  • To have a clean /etc/apt/sources.list I recommend using this tool ( http://repogen.simplylinux.ch/ ) to create a new list for your current version ubuntu 10.10

  • Again: I don't recommend a downgrade.

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The main question was unanswered: The real problem is that all repositories are locked and I can not get into them. They are Ubuntu Software Center, Printing, Synaptic Package Manager, and Update Manager. There may be more programs but I don't really know – ken1943 May 19 '11 at 19:37
sudo apt-get check did not do anything --- was it supposed to? Also, no one answered the main thrust of my question, to wit, Printing, and Update do not work and I am locked out of my Repositories. An honest reading of all my questions would greatly be appreciated. They are all tied into each other. – ken1943 23 hours ago – ken1943 May 19 '11 at 23:46
My approach to your problem is to fix your sources. For that I would check if you have some old 10.04 sources in the /etc/apt/sources.list.d folder and in /etc/apt/sources.list. After having cleaned your sources, you may be able to update... That may help to fix your other problems. But for a start, try 'sudo dpkg --configure -a' in a console. Maybe that also gives you the possibility to launch the update-manager afterwards. – minimec May 20 '11 at 11:14
minimic, the only thing I could do was clean out /etc/apt/sources.list and type in two lines of coding to install 10.04 and 10.10 repositories. update-manager says there is a "segmentation fault". – ken1943 May 20 '11 at 17:20
For a clean sources.list i really recommend repogen.simplylinux.ch. Dont' mix repositories. Why have 10.04 and 10.10 sources in your list? Try to recover the 10.10 installation. 1) Create new sources.list (use link), 2) then 'sudo apt-get update', 3) then 'sudo apt-get upgrade'. Like that you have at least a clean 10.10 sources.list, and you should have an 'up to date' system after 'sudo apt-get upgrade'. Hope this does the job. This would be my approach. – minimec May 20 '11 at 18:54
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