Tomorrow (29th Oct 2009) ubuntu 9.10 is going to be released so before upgrading your system use the following procedure tutorial to select the fastest ubuntu mirror near to your location.
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If you use the Ubuntu Personal Package Archives (https://launchpad.net/ubuntu/+ppas) then forget about opening /etc/apt/sources.list to add a repository; in Karmic, use the new add-apt-repository command. For example, to add the repository for the chromium browser, just run:
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If you want to upgrade From Ubuntu Intrepid (8.10) to Jaunty (9.04) use this tutorial for faster upgrades.We are going to use apt-p2p for this tutorial.apt-p2p is a p2p proxy for apt dowloads, it will act as a proxy between apt requests and a repository server, downloading any request files from peers (if possible), else will fallback to direct HTTP download. In general, apt-p2p save bandwidth, use limited cpu and memory resources and reduce congestion on the ubuntu mirrors.apt-p2p will get the request files from peers, therefore, it will avoid the congestion on the ubuntu mirrors.
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Using apt (Advanced Packaging Tool) in Ubuntu
The Advanced Packaging Tool, which has since been ported by Conectiva for use with rpm and has been adopted by some other distributions.
The apt-get command is a powerful command-line tool used to work with Ubuntu's Advanced Packaging Tool (APT) performing such functions as installation of new software packages, upgrade of existing software packages, updating of the package list index, and even upgrading the entire Ubuntu system.
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Dpkg is the Ubuntu package manager dpkg is a medium-level tool to install, build, remove and manage Ubuntu packages. The primary and more user-friendly front-end for dpkg is dselect.dpkg itself is controlled entirely via command line parameters,which consist of exactly one action and zero or more options. The action-parameter tells dpkg what to do and options control the behavior of the action in some way.