Operating systems that supported Alpha included OpenVMS ( previously known as OpenVMS AXP ), Tru64 UNIX ( previously known as DEC OSF / 1 AXP and Digital UNIX ), Windows NT ( until 4. 0 SP6 and Windows 2000 RC1 ), GNU / Linux ( Debian GNU / Linux, Gentoo Linux and Red Hat Linux ), BSD UNIX ( NetBSD, OpenBSD and FreeBSD up to 6. x ), as well as the L4Ka :: Pistachio kernel.

Irssi was written primarily to run on Unix-like operating systems, and binaries and packages are available for Gentoo Linux, Slackware, SUSE ( openSUSE ), Frugalware, Fedora, FreeBSD, Solaris, and Arch Linux.

One can distinguish between commercially backed distributions, such as Fedora ( Red Hat ), openSUSE ( Novell ), Ubuntu ( Canonical Ltd .), and Mandriva Linux ( Mandriva ), and entirely community-driven distributions, such as Debian, Mageia and Gentoo.

* Gentoo Linux

Gentoo Linux was an early user by mid-2002.

For distributions based on. deb and. rpm files as well as Slackware Linux, there is CheckInstall, and for recipe-based systems such as Gentoo Linux and hybrid systems such as Arch Linux, it is possible to write a recipe first, which then ensures that the package fits into the local package database.

Other distributions include support for it such as Debian as of the etch release, Ubuntu as of 8. 04 Hardy Heron, Hardened Gentoo, and Yellow Dog Linux.

Gentoo Linux ( ) is a computer operating system built on top of the Linux kernel and based on the Portage package management system.

Gentoo Linux was initially created by Daniel Robbins as the Enoch Linux distribution.

At this point, Enoch changed name to Gentoo Linux ( the Gentoo species is the fastest swimming penguin ).

After problems with a bug on his own system, Robbins halted Gentoo Linux development and switched to FreeBSD for several months, later saying " I decided to add several FreeBSD features to make our autobuild system ( now called Portage ) a true next-generation ports system.

Gentoo Linux 1. 0 was released March 31, 2002.

As with many Linux distributions, Gentoo may be installed from almost any Linux environment, such as another Linux distribution's LiveCD, LiveUSB or Network Booting using the Gentoo Alternate Install Guide.

Gentoo / FreeBSD also uses Gentoo's GNU toolchain instead of the original FreeBSD one.

Portage's main utility is emerge, which is written in Python and can be used by privileged users to inspect and alter the set of installed packages on a Gentoo operating system.

Portage is written in the Python programming language, and is the main utility that defines Gentoo.

** Developer rooms: CrossDesktop, KDE, Gnome, openSUSE, Mozilla, GNU Classpath + OpenJDK DevJam, CentOS + Fedora, Jabber, OpenGroupware + GNUstep, Python, Research Room, X. org, Gentoo, Debian, Embedded

The development project and its products are named after the fastest-swimming penguin, the Gentoo, to reflect the potential speed improvements of machine-specific optimization.

Gentoo describes itself as a meta-distribution, " because of its near-unlimited adaptability ", in that the majority of users have configurations and sets of installed programs which are unique to themselves.

In 2004, Gentoo began to version its Live media by year rather than numerically.

The official development of mpg123 and its library, mpglib, had ceased for several years, and as some serious security holes emerged, patches were submitted by third party developers for the Debian and Gentoo Linux packages, as well as the FreeBSD ports collection.

As the Gentoo penguin waddles along on land, its tail sticks out behind, sweeping from side to side, hence the scientific name Pygoscelis, which means " rump-tailed ".

The format was created by the Gentoo Linux project for use in its Portage software management system.

However, like many other free software projects, Gentoo struggled to create a business model which would support its key developers.

When the Gentoo ebuild lost its maintainer and plans were made to remove it from the package tree, Anthony Basile forked the project under the name sthttpd.

Gentoo package management is designed to be modular, portable, easy to maintain, flexible, and optimized for the user's machine.

Like other Linux distributions, Gentoo systems have an file, but this contains the version of the installed package.

Generally, Gentoo users accept long compile times as the cost of being able to apply their own compile-time options and enjoy the flexibility of Portage, but Gentoo developers have created a number of work-arounds to avoid slow package installation.

Portage is a package management system used by Gentoo Linux, based on the concept of ports collections.

Gentoo does not, by default, use binary packages as other package management systems do ( like RPM ), employing instead a format known as the ebuild.

The script is used by the emerge tool, also created by the Gentoo Linux project, to calculate any dependencies of the desired software installation, download the required files ( and patch them, if necessary ), configure the package ( based on " USE flag " settings ), compile, and perform a sandboxed installation ( in < tt >/ var / tmp / portage / name / image /</ tt > by default ).

Hardened Gentoo offers a ProPolice protected and Position Independent Executable base using exactly the same package tree as Gentoo.

In addition to the source code package and binary installers for GNU / Linux, Mac OS X, and Windows, ejabberd is also available in several Operating System distributions as is typical in FOSS, including Debian, Fedora, Gentoo, Ubuntu, Arch Linux, OpenSolaris, FreeBSD Ports, OpenBSD ports, NetBSD port and Mac OS X's Fink.

Xgl is also available as an overlayed package in Gentoo Linux, and as a PKGBUILD for Arch Linux.

Additionally, as Gentoo expanded to other platforms such as Gentoo / FreeBSD and Gentoo Embedded, requiring the relatively heavy Bash shell for the rc system became undesirable or sometimes impossible.

During this development, it was decided that it was a better fit if baselayout provided only the base files and filesystem layout for Gentoo, and the rc system was broken off into an independent project – OpenRC.

Once Gentoo is installed, it becomes effectively " versionless "; that is, once an emerge update is done, the system is at the latest version, with the most up-to-date packages available ( subject to restrictions that a user may have specified in their Portage configuration files ).

For example, if a system is installed using a stage3 from March 2011, and the user performs a full emerge update one month later, they will upgrade the installed Gentoo system to the same as they would have if they had performed a fresh installation from an April 2011 CD.

* Gentoo is the name of a GNU / Linux based operating system.

Masking is how Gentoo determines which packages are suitable for a system.

The current codebase consists of the original thttpd with the dozen Gentoo patches, plus a rewrite of the build system.

Various Linux and BSD distributions have also been ported to the FM Towns system, including Debian and Gentoo.

VidaLinux ( VLOS ) is an operating system based on Gentoo Linux.

Gentoox is an operating system based on Gentoo Linux, created especially for the Xbox by Thomas Pedley.

The installers for the Arch Linux, CrunchBang, CentOS, Debian, Fedora, Gentoo, Mandriva, MontaVista Linux, openSUSE, Pardus, Slackware, SLED, SLES, and Ubuntu distributions are LVM-aware and can install a bootable system with a root filesystem on a logical volume.

Gentoo / FreeBSD is a Unix-like operating system developed by Gentoo Linux developers in order to bring Gentoo Linux design, structure, and tools such as Portage and the Gentoo Linux baselayout to the FreeBSD operating system.