configuração do ficheiro souces.list

vasconceloscv
(usa Outra)

Enviado em 27/02/2008 - 11:32h

Olá pessoal

estiu tentar actualizar o meu systema Ubunto 7.04
mas não consigo. aparece sempre um erro de falha de conexão com o servidor.
no entanto o acedo as autras paginas da Internet.
Informo ainda que tenho um servidor proxy na minha rede. sera que este pode ser um entrave...???

tentei editar o ficheiro sources.list da seguinte forma:
..........

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.

deb http://pt.archive.ubuntu.com/ubuntu/ feisty main restricted
deb-src http://pt.archive.ubuntu.com/ubuntu/ feisty restricted main multive$

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

## 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://pt.archive.ubuntu.com/ubuntu/ feisty 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://pt.archive.ubuntu.com/ubuntu/ feisty 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://cv.archive.ubuntu.com/ubuntu/ feisty-backports main restricted u$
deb-src http://cv.archive.ubuntu.com/ubuntu/ feisty-backports main restrict$

deb http://pt.archive.ubuntu.com/ubuntu/ feisty-security main restricted
deb-src http://pt.archive.ubuntu.com/ubuntu/ feisty-security restricted mai$
deb http://pt.archive.ubuntu.com/ubuntu/ feisty-security universe
deb http://pt.archive.ubuntu.com/ubuntu/ feisty-security multiverse
deb http://pt.archive.ubuntu.com/ubuntu/ feisty-updates main multiverse uni$
deb http://pt.archive.ubuntu.com/ubuntu/ feisty-proposed restricted main mu$
deb-src http://pt.archive.ubuntu.com/ubuntu/ feisty-proposed restricted mai$
.................

Alguem podia me ajudar

obrigado