Informações da última versão: Ubuntu Linux 20.10 - Groovy Gorilla
É estranho que me apareça a palavra "feisty" no endereço destes ficheiros, já tinha reparado. É que a versão que estou a usar é a 8.04, ou seja, o Ubuntu Hardy! Já fui espreitar o tópico que me indicaste mas acabei por ver que não se aplica ao meu problema De qualquer maneira, obrigada pela ajuda.
sudo cp /etc/apt/sources.list /etc/apt/sources.list.bkp.20090227
sudo gedit /etc/apt/sources.list
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to# newer versions of the distribution.deb http://archive.ubuntu.com/ubuntu/ hardy main restricteddeb-src http://archive.ubuntu.com/ubuntu/ hardy main restricted## Major bug fix updates produced after the final release of the## distribution.deb http://archive.ubuntu.com/ubuntu/ hardy-updates main restricteddeb-src http://archive.ubuntu.com/ubuntu/ hardy-updates main restricted## 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## universe WILL NOT receive any review or updates from the Ubuntu security## team.deb http://archive.ubuntu.com/ubuntu/ hardy universedeb-src http://archive.ubuntu.com/ubuntu/ hardy universe## 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.deb http://archive.ubuntu.com/ubuntu/ hardy multiversedeb-src http://archive.ubuntu.com/ubuntu/ hardy multiverse## 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 http://pt.archive.ubuntu.com/ubuntu/ feisty-backports main restricted universe multiverse# deb-src http://pt.archive.ubuntu.com/ubuntu/ feisty-backports main restricted universe multiversedeb http://archive.ubuntu.com/ubuntu/ hardy-security main restricteddeb-src http://archive.ubuntu.com/ubuntu/ hardy-security main restricteddeb http://archive.ubuntu.com/ubuntu/ hardy-security universedeb-src http://archive.ubuntu.com/ubuntu/ hardy-security universedeb http://archive.ubuntu.com/ubuntu/ hardy-security multiversedeb-src http://archive.ubuntu.com/ubuntu/ hardy-security multiverse#AUTOMATIX REPOS START# deb http://www.getautomatix.com/apt gutsy maindeb http://security.ubuntu.com/ubuntu hardy-security main restricted universe multiverse# deb http://www.getautomatix.com/apt feisty maindeb http://archive.canonical.com/ubuntu hardy partnerdeb http://archive.ubuntu.com/ubuntu hardy-backports main restricted universe multiversedeb http://archive.ubuntu.com/ubuntu hardy-updates universe multiverse#AUTOMATIX REPOS END
sudo apt-get update