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Gentoo/*BSD and Debian GNU/NetBSD

关键词： BSD    Gentoo    Debian                                          

Gentoo + *BSD

http://dev.gentoo.org/~g2boojum/bsd.html

I would really like to be able to play with OpenBSD's PF, or FreeBSD's jail, but I'm rather fond of Gentoo and portage. Right now anybody wanting to play with portage on a bsd has a lot of work to do before getting started, since we don't have stage-1 tarballs. I still don't have a stage-1, but this text and attendent files comprises a small start along the road to generating one.

This guide has sections for Gentoo OpenBSD and Gentoo FreeBSD.

Subprojects

The bsd project has the following subprojects:

Project	Lead	Description
obsd	Karol Pasternak	A Gentoo system based on OpenBSD
fbsd	Stephen Bennett	FreeBSD-based Gentoo system
nbsd	Damian Florczyk	A Gentoo system based on NetBSD

Planned subprojects

The bsd project has the following subprojects planned:

Project	Description
dfly	This is a (still unofficial) port of Gentoo under DragonFly BSD system. Quite near to Gentoo/FreeBSD, this port will share many part of the current implementation. Developed by Robert Sebastian Gerus (arachnist).

A short guide to Gentoo/FreeBSD

http://www.gentoo.org/doc/en/gentoo-freebsd.xml

What is FreeBSD?

FreeBSD is a free (license) Unix-like operating system. Back in 1993 when development of 386BSD stopped, two projects were born: NetBSD, commonly known to run on a huge number of architectures, and FreeBSD which supports the x86, amd64, ia64, sparc64 and alpha platforms.FreeBSD is renowned for its stability, performance and security, thus being used from small to huge companies all over the world. FreeBSD's current production release version is 6.0, which is also used as the foundation for the Gentoo/FreeBSD project. The previous 5.x branch is being continued by the FreeBSD project as a service release, but is no more worked on by the Gentoo/FreeBSD developers.

What is Gentoo/FreeBSD?

Gentoo/FreeBSD is a subproject of the Gentoo/Alt project, with the goal of providing a fully-capable FreeBSD operating system featuring the design sensibilities known from Gentoo Linux, like the init system and the portage package management system.

FreeBSD and Linux

Users migrating from Linux to FreeBSD commonly consider the two operating systems "almost the same". In fact, FreeBSD really shares a lot of similarities with Linux distributions in general. Nevertheless, it has some key differences that are worth noting:

• Contrary to Linux, which actually only refers to the kernel, FreeBSD is a complete operating system, consisting of a C library, userland tools and much more. This development approach makes the overall system very consistent.
• Contrary to the Linux kernel, FreeBSD development is not led by one person, but instead managed by a small group of people called the Core Team.

Besides, FreeBSD also has some technical differences which set it apart from Linux. Some of them are very important to know, even if you don't plan on joining the Gentoo/FreeBSD development effort:

• To get run-time dynamic linking functions like dlopen(), programs do not need to be linked against libdl like on GNU/Linux. Instead they are linked against libc.
• FreeBSD doesn't have an official tool for kernel compilation, thus you'll have to resolve feature dependencies on your own.
• FreeBSD uses UFS/UFS-2 as its filesystems and has no official support for e.g. ReiserFS or XFS. However, there are projects for adding read-only support for these filesystems. Accessing ext2/ext3 partitions is already possible, but you cannot install your system on them.

Debian GNU/NetBSD

http://www.debian.org/ports/netbsd/

Debian GNU/NetBSD is a port of the Debian Operating System to the NetBSD kernel. It is currently in an early stage of development - however, it can now be installed from scratch.

Why Debian GNU/NetBSD?

http://www.debian.org/ports/netbsd/why

• NetBSD runs on hardware unsupported by Linux. Porting Debian to the NetBSD kernel increases the number of platforms that can run a Debian-based operating system.
• The Debian GNU/Hurd project demonstrates that Debian is not tied to one specific kernel. However, the Hurd kernel is still relatively immature - a Debian GNU/NetBSD system would be usable at a production level.
• Lessons learned from the porting of Debian to NetBSD can be used in porting Debian to other kernels (such as those of FreeBSD and OpenBSD).
• In contrast to projects like Fink or Debian GNU/w32, Debian GNU/NetBSD does not exist in order to provide extra software or a Unix-style environment to an existing OS (the *BSD ports trees are already comprehensive, and they unarguably provide a Unix-style environment). Instead, a user or administrator used to a more traditional Debian system should feel comfortable with a Debian GNU/NetBSD system immediately and competent in a relatively short period of time.
• Not everybody likes the *BSD ports tree or the *BSD userland (this is a personal preference thing, rather than any sort of comment on quality). Linux distributions have been produced which provide *BSD style ports or a *BSD style userland for those who like the BSD user environment but also wish to use the Linux kernel - Debian GNU/NetBSD is the logical reverse of this, allowing people who like the GNU userland or a Linux-style packaging system to use the NetBSD kernel.
• Because we can.

【作者: 辛亚平】【访问统计:】【2006年05月9日 星期二 10:00】【 加入博采】【打印】