A brief introduction to Ubuntu Linux

&http://www.aliyun.com/zixun/aggregation/37954.html ">NBSP; Based on the Debian distribution and GNOME desktop environment, Ubuntu releases a new version every 6 months. Regular desktop apps can receive 18 months of support, and desktop apps labeled LTS can be extended for longer periods of time.

The Ubuntu default desktop environment is GNOME. Kubuntu and Xubuntu are the derivative versions of the Ubuntu project, and their desktop environment is KDE and XFCE respectively. There are also Edubuntu, educational editions, using GNOME. Another project, Lubuntu, used LXDE in 2009.

Ubuntu Distributions, Kubuntu distributions, and Xubuntu distributions are part of the Ubuntu project initiated by the canonical company, but only the Ubuntu release has canonical company involvement, others are unpaid work in the free software community, But it is also supported by the Ubuntu team, sharing various packages with Ubuntu.

Installing media

Ubuntu installation media classification

Amd64.iso for 64-bit computers
I386.iso for 32-bit, 64-bit computers

Desktop Desktop Edition, suitable for most users of the version, Live CD, available CD-ROM directly start the Ubuntu system.
The alternate "Alternate installer" installation disk cannot be used as a live CD and the installation interface cannot use the mouse.
Server version, the default is only command-line without a graphical interface.
Netbook-remix small screen of netbooks dedicated.

DVD DVD media, large capacity, everything, very full.

Package Management

The Ubuntu Suite Management system is similar to Debian, and all software is divided into 4 categories: Main, restricted, universe, and multiverse, each of which is a "component (component)" that represents different licensing and available support levels. In general, the official supported main components are primarily designed to meet the basic requirements of most PC users, and the restricted ("Copyright restrictions") component is primarily used to improve system availability, so it is often necessary to install the software in both types of components.

Source

Main is the "basic" component that contains only software that meets the requirements of the Ubuntu protocol and is maintained by the Ubuntu team.

Restricted is a "restricted" component that contains very important software that does not have the right free protocol, such as a graphics driver, with the same Ubuntu team maintenance support.

Universe, a "Community maintenance" component, contains a wide variety of software that may be limited to protocols, may not be, but are not maintained for the Ubuntu team.

Multiverse is a "non-free" component that includes software that does not meet the requirements of free software and is not supported by the Ubuntu team, usually written for commercial companies.

The following table is visible in various component descriptions

Free software non-free software
Official support Main restricted
Unofficial Support Universe Multiverse