The Debian Project is an association of individuals who have made common cause to create a free operating system This operating system that we have created is called Debian GNU Linux or simply Debian for short An operating system is the set of basic programs and utilities that make your computer run At the core of an operating system is the kernel The kernel is the most fundamental program on the computer and does all the basic housekeeping and lets you start other programs
Debian systems currently use the Linux kernel Linux is a piece of software started by Linus Torvalds and supported by thousands of programmers worldwide However work is in progress to provide Debian for other kernels primarily for the Hurd The Hurd is a collection of servers that run on top of a microkernel such as Mach to implement different features The Hurd is free software produced by the GNU project
A large part of the basic tools that fill out the operating system come from the GNU project hence the names GNU Linux and GNU Hurd These tools are also free Of course the thing that people want is application software programs to help them get what they want to do done from editing documents to running a business to playing games to writing more software Debian comes with over 25113 packages precompiled software that is bundled up in a nice format for easy installation on your machine mdash all of it free
Debian GNU Linux runs on computers ranging from palmtops and handheld systems to supercomputers and on nearly everything in between A total of twelve architectures are supported Sun SPARC sparc HP Alpha alpha Motorola IBM PowerPC powerpc Intel IA 32 i386 IA 64 ia64 HP PA RISC hppa MIPS mips mipsel ARM arm armel IBM S 390 s390 and AMD64 and Intel EM64T amd64
Debian GNU Linux 5 0 Lenny adds support for Marvell 39 s Orion platform which is used in many storage devices Supported storage devices include the QNAP Turbo Station series HP Media Vault mv2120 and Buffalo Kurobox Pro Additionally Lenny now supports several Netbooks in particular the Eee PC by Asus Lenny also contains the build tools for Emdebian which allow Debian source packages to be cross built and shrunk to suit embedded ARM systems
Debian GNU Linux 5 0 Lenny includes the new ARM EABI port armel This new port provides a more efficient use of both modern and future ARM processors As a result the old ARM port arm has now been deprecated
This release includes numerous updated software packages such as the K Desktop Environment 3 5 10 KDE an updated version of the GNOME desktop environment 2 22 2 the Xfce 4 4 2 desktop environment LXDE 0 3 2 1 the GNUstep desktop 7 3 X Org 7 3 OpenOffice org 2 4 1 GIMP 2 4 7 Iceweasel 3 0 6 an unbranded version of Mozilla Firefox Icedove 2 0 0 19 an unbranded version of Mozilla Thunderbird PostgreSQL 8 3 6 MySQL 5 0 51a GNU Compiler Collection 4 3 2 Linux kernel version 2 6 26 Apache 2 2 9 Samba 3 2 5 Python 2 5 2 and 2 4 6 Perl 5 10 0 PHP 5 2 6 Asterisk 1 4 21 2 Emacs 22 Inkscape 0 46 Nagios 3 06 Xen Hypervisor 3 2 1 dom0 as well as domU support OpenJDK 6b11 and more than 23 000 other ready to use software packages built from over 12 000 source packages
With the integration of X Org 7 3 the X server autoconfigures itself with most hardware Newly introduced packages allow the full support of NTFS filesystems and the use of most multimedia keys out of the box Support for Adobe reg Flash reg format files is available via the swfdec or Gnash plugins Overall improvements for notebooks have been introduced such as out of the box support of CPU frequency scaling For leisure time several new games have been added including puzzle games as well as first person shooters Also notable is the introduction of goplay a graphical games browser offering filters search screenshots and descriptions for games in Debian
The availability and updates of OpenJDK GNU Java compiler GNU Java bytecode interpreter Classpath and other free versions of Sun 39 s Java technology into Debian GNU Linux 5 0 allow us to ship Java based applications in Debian 39 s main repository
Further improvements in system security include the installation of available security updates before the first reboot by the Debian Installer the reduction of setuid root binaries and open ports in the standard installation and the use of GCC hardening features in the builds of several security critical packages Various applications have specific improvements too PHP for example is now built with the Suhosin hardening patch
For non native English speaking users the package management systems now support translated package descriptions and will automatically show the description of a package in the native language of the user if available
Debian GNU Linux can be installed from various installation media such as DVDs CDs USB sticks and floppies or from the network GNOME is the default desktop environment and is contained on the first CD Other desktop environments mdash KDE Xfce or LXDE mdash can be installed through two new alternative CD images Again available with Debian GNU Linux 5 0 are multi arch CDs and DVDs supporting installation of multiple architectures from a single disc and this release adds Blu ray Discs allowing the archive for an entire architecture to be shipped on a single BD
In addition to the regular installation media Debian GNU Linux can now also be directly used without prior installation The special images used known as live images are available for CDs USB sticks and netboot setups Initially these are provided for the amd64 and i386 architectures only
The installation process for Debian GNU Linux 5 0 has been improved in many ways among many other improvements support for installation from more than one CD or DVD has been restored firmware required by some devices can be loaded by using removable media and installations via Braille display are supported The installer boot process has also received much attention a graphical menu can be used to choose front ends and desktop environments and to select expert or rescue mode The installation system for Debian GNU Linux has now been translated to 63 languages
January 30th 2010
The Debian project is pleased to announce the third update of its stable distribution Debian GNU Linux 5 0 codename lenny This update mainly adds corrections for security problems to the stable release along with a few adjustment to serious problems
Please note that this update does not constitute a new version of Debian GNU Linux 5 0 but only updates some of the packages included There is no need to throw away 5 0 CDs or DVDs but only to update via an up to date Debian mirror after an installation to cause any out of date packages to be updated
Those who frequently install updates from security debian org won 39 t have to update many packages and most updates from security debian org are included in this update
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