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Linux Biblen 2008 Edition Boot Up to Ubuntu, Fedora, KNOPPIX, Debian, openSUSE, and 11 Other Distributions phần 5

Khi cài đặt gói hỗ trợ cấu hình tự động thông qua debconf, bạn sẽ được nhắc để trả lời các câu hỏi cấu hình thích hợp. Trong khi các nhà phát triển gói Debian đã đi đến độ dài lớn để đảm bảo rằng các tùy chọn mặc định cho những câu hỏi này sẽ làm việc trong hầu hết các các tình huống, tốt nhất là đọc các câu hỏi kỹ lưỡng để chắc chắn rằng mặc định làm việc cho bạn. | Part III Choosing and Installing a Linux Distribution - . ỴQt ỉĨỂ When installing packages that support automatic configuration through debconf you re prompted to answer the appropriate configuration questions. While the Debian package developers have gone to great lengths to ensure that the default options for these questions will work in most situations it s best to read the questions thoroughly to be sure that the defaults work for you. Removing Packages APT can also be used to remove packages from your system. Unlike dpkg which removes only the package you tell it to remove apt-get also removes any packages that depend on the package you are removing. This is best used in conjunction with the -s option to simulate what would happen if the removal were actually performed apt-get -s remove python2.3 Reading Package Lists. Done Building Dependency Tree. Done The following packages will be REMOVED bittornado python python2.3 python2.3-dev 0 upgraded 0 newly installed 4 to remove and 0 not upgraded. Remv pytris 0.96 Debian testing Remv python 2.3.4-1 Debian testing Remv python2.3-dev 2.3.4-5 Debian testing Remv python2.3 2.3.4-5 Debian testing In this example several other packages depend on the python2.3 package and also need to be removed. To proceed with removing python2.3 and all packages that depend on it run the command again without the -s flag. Upgrading Your System As new versions of packages become available you can instruct APT to download and install them automatically replacing the older versions. This is as simple as updating your package list followed by a simple command apt-get upgrade APT will begin by downloading the necessary packages and will then move on to installing and configuring them. If necessary you can abort the upgrade during the download process by pressing Control C. APT may also be able to recover if you have to abort during the installation or configuration steps but it is still best to let the process run without interruption once