gerenciador de atualizações

[Wellington11]

  Ai naquela janela canais de software qual a configuração certa para ficar marcada, pois fiz algumas alterações nelas e viraram uma bagunça, eu gostaria de saber qual a configuração padrão, meu sistema ubuntu 12.04, quais abas tem q fik marcada aplicativos do ubuntu,  outro software, atualizaçoes etc..
precisa da configuração padrão

[EdvaldoSCruz]

Ai naquela janela canais de software qual a configuração certa para ficar marcada, pois fiz algumas alterações nelas e viraram uma bagunça, eu gostaria de saber qual a configuração padrão, meu sistema ubuntu 12.04, quais abas tem q fik marcada aplicativos do ubuntu,  outro software, atualizaçoes etc..
precisa da configuração padrão

53) Manual de funcionamento(instrução) específico do Ubuntu, clique aqui.

[Creto]

Para retomar sua configuração padrão, faça isso meu caro:

Abra o teminal e digite ou copie e cole os comandos abaixo:

1° -

Código: [Selecionar]

sudo gedit /etc/apt/sources.list dê enter, digite sua senha
2° - Na janela que se abrir apague "tudo" e copie daqui e cole lá:
3° sources.list original do ubuntu:

Código: [Selecionar]

# deb cdrom:[Ubuntu 12.04 LTS _Precise Pangolin_ - Release i386 (20120423)]/ precise main restricted

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://archive.ubuntu.com/ubuntu precise main restricted
deb-src http://archive.ubuntu.com/ubuntu precise main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://archive.ubuntu.com/ubuntu precise-updates main restricted
deb-src http://archive.ubuntu.com/ubuntu precise-updates main restricted

## 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.
deb http://archive.ubuntu.com/ubuntu precise universe
deb-src http://archive.ubuntu.com/ubuntu precise universe
deb http://archive.ubuntu.com/ubuntu precise-updates universe
deb-src http://archive.ubuntu.com/ubuntu precise-updates 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 precise multiverse
deb-src http://archive.ubuntu.com/ubuntu precise multiverse
deb http://archive.ubuntu.com/ubuntu precise-updates multiverse
deb-src http://archive.ubuntu.com/ubuntu precise-updates multiverse

## 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://archive.ubuntu.com/ubuntu precise-backports main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu precise-backports main restricted universe multiverse

deb http://archive.ubuntu.com/ubuntu precise-security main restricted
deb-src http://archive.ubuntu.com/ubuntu precise-security main restricted
deb http://archive.ubuntu.com/ubuntu precise-security universe
deb-src http://archive.ubuntu.com/ubuntu precise-security universe
deb http://archive.ubuntu.com/ubuntu precise-security multiverse
deb-src http://archive.ubuntu.com/ubuntu precise-security 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 precise partner
# deb-src http://archive.canonical.com/ubuntu precise partner

## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
deb http://extras.ubuntu.com/ubuntu precise main
deb-src http://extras.ubuntu.com/ubuntu precise main
Nessa janela na parte superior procure e clique em "Salvar feche esta janela e ainda no terminal:

Código: [Selecionar]

sudo apt-get update
Se não aparecer nenhum erro (e se aparecer poste a saida aqui)

Código: [Selecionar]

sudo apt-get dist-upgrade
T+