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如何从Edgy升级到Feisty

源的添加和使用

Read #General Notes
You can add extra repositories using the Software Sources application, which can be found in the menu: System -> Administration -> Software Sources. Check the repositories you think you will need (main, universe, restricted, multiverse). You probably won't need the 'sources' repository. This is the recommended way to add extra repositories:

Another way to add extra repositories is to use following steps (do this at your own risk):

Create a backup of your current list of sources.

sudo cp -p /etc/apt/sources.list /etc/apt/sources.list_backup

Open the list of sources in a text editor

Ubuntu (GNOME) users:

sudo gedit /etc/apt/sources.list

Kubuntu (KDE) users:

sudo kate /etc/apt/sources.list

Other users (if the above don't work):

sudo nano /etc/apt/sources.list

Use the following lines as a template to guide you in editing the repositories in sources.list:

You can try replacing the current contents of sources.list with the following lines

To use your local mirror you can add "cc." before archive.ubuntu.com, where cc = your country code

e.g. deb http://lv.archive.ubuntu.com/ubuntu feisty main restricted universe multiverse

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

## Add comments (##) in front of any line to remove it from being checked.
## Use the following sources.list at your own risk.

## Uncomment deb-src if you wish to download the source packages

## If you have a install CD you can add it to the reposity using 'apt-cdrom add'
## which will add a line similar to the following:
#deb cdrom:[Ubuntu 7.04 _Feisty Fawn_ - Beta i386 (20070322.1)]/ feisty main restricted
deb http://us.archive.ubuntu.com/ubuntu/ feisty main restricted
#deb-src http://us.archive.ubuntu.com/ubuntu/ feisty main restricted

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

deb http://security.ubuntu.com/ubuntu feisty-security main restricted
#deb-src http://security.ubuntu.com/ubuntu feisty-security main restricted
deb http://security.ubuntu.com/ubuntu feisty-security universe
#deb-src http://security.ubuntu.com/ubuntu feisty-security universe
deb http://security.ubuntu.com/ubuntu feisty-security multiverse
#deb-src http://security.ubuntu.com/ubuntu feisty-security multiverse

## PLF REPOSITORY (Unsupported. May contain illegal packages. Use at own risk.)
## Medibuntu - Ubuntu 7.04 "feisty fawn"
## Please report any bug on https://launchpad.net/products/medibuntu/+bugs
deb http://medibuntu.sos-sts.com/repo/ feisty free non-free
#deb-src http://medibuntu.sos-sts.com/repo/ feisty free non-free

## CANONICAL COMMERCIAL REPOSITORY (Hosted on Canonical servers, not Ubuntu
## servers. RealPlayer10, Opera, DesktopSecure and more to come.)
deb http://archive.canonical.com/ubuntu feisty-commercial main

## enlightenment e17 beta, use at your own risk
## E17 is in Beta and may break or break your system
#deb http://edevelop.org/pkg-e/ubuntu feisty e17
#deb http://e17.dunnewind.net/ubuntu feisty e17
#deb-src http://edevelop.org/pkg-e/ubuntu feisty e17

Save the edited file

Download needed gpg keys; e.g., use the following command for the PLF repository's gpg key:

wget -q http://packages.medibuntu.org/medibuntu-key.gpg -O- | sudo apt-key add -

If you wish to try out the E17 beta, you will also need to download it's gpg key:

wget -q http://lut1n.ifrance.com/repo_key.asc -O- | sudo apt-key add -

Refresh packages list:

sudo aptitude update

You may also generate your own sources.list and find other repositories at: http://www.ubuntulinux.nl/source-o-matic

Modify the default Ubuntu sources.list only if you understand what you're doing. Mixing repositories can break your system.