Upgrading from Ubuntu 10.10 to Ubuntu 11.04 issue

[Nils Kassube]

Emilia wrote:
> Hi everyone, i recently upgraded my Ubuntu 10.04 to Ubuntu 10.10 in
> order to upgrade it later to Ubuntu 11.04 and then to the very last
> version.

You could have taken a much shorter route by directly upgrading from
10.04 LTS to 12.04 LTS - but unfortunately it is too late now.

> The problem is that now I can't continue upgrading it and
> i'm kind of stucked in Ubuntu 10.10 ...
> 
> The error it throws when i try to upgrade says something like this
> (sorry if my English is not that good):
> 
> Not valid information about packages

The problem with these ancient releases is that the repositories were
moved from the standard server to old-releases.ubuntu.com. In the file
/etc/apt/sources.list you should change the server names accordingly.
Then the entries would look like this:

deb http://old-releases.ubuntu.com/ubuntu/ maverick main restricted multiverse universe

To edit the file you need root privilege. You can do it with a command
like

gksu gedit /etc/apt/sources.list

in a terminal. And you will probably have to do the same for some more
upgrades. For more details have a look at [1].

But I would suggest that you save yourself a lot of time and do a fresh
install of the latest version directly. Either 12.10 which was released
a few days ago, or 12.04 LTS if you prefer to keep one release for a
longer time. You can preserve the files in your home directory if you
select manual partitioning and select the currently used partition(s)
but NOT format them.


Nils

[1] <https://help.ubuntu.com/community/EOLUpgrades>