EROS

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Web site: www.eros-os.org (not active)
Origin: USA
Category: Microkernel, Others
Desktop environment: CLI
Architecture: x86
Based on: KeyKOS
Wikipedia: EROS
Media: Install
The last version | Released: 1.1 | April 18, 2001

EROS (Extremely Reliable Operating System) – an operating system being implemented at the University of Pennsylvania, as a clean-room reconstruction of an earlier system, KeyKOS. The system merges some very old ideas in operating systems with some newer ideas about performance and resource management. The result is a small, secure, real-time operating system that provides orthogonal persistence.

EROS is a pure capability system. Authority in the system is conveyed exclusivly by secure capabilities, down to the granularity of individual pages.

The EROS kernel itself is implemented using multiple kernel-mode threads. This improves the performance of EROS drivers, makes them simpler to code, and greatly simplifies the design of the kernel. In addition, it enables selected kernel functionality to be preempted by higher priority user activities.

Because EROS processes are persistent, processes can hold authorities in their own right rather than inheriting them from the user. This enables a rich variety of options for security and access control that are impossible in systems lacking persistent processes.

EROS developed beginning in 1991 by The EROS Group, LLC., the Johns Hopkins University, and the University of Pennsylvania. Features include automatic data and process persistence, some preliminary real-time support, and capability-based security. EROS is purely a research operating system, and was never deployed in real world use. As of 2005, development has stopped in favor of two successor systems, CapROS and Coyotos.

The project founder is Jonathan Shapiro. He is also the driving force behind Coyotos, which is an “evolutionary step” beyond the EROS operating system.

Download

No download is available.
md5sum:

 

emBSD

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Web site: www.embsd.org
Origin: ?
Category: Firewall
Desktop environment: CLI
Architecture: x86
Based on: OpenBSD
Wikipedia:
Media: Live
The last version | Released: 1.1 | May 2001

emBSD – a stripped down version of OpenBSD. The concept for emBSD is a small foot print operating system for x86 (or other) hardware to use as little hard disk space as possible yet provide a fully functional Routing Firewall. The main driving force behind this concept is to not use a hard disk drive at all, but use off the shelf Compact Flash cards.

emBSD is a very small system designed for specific purposes. emBSD is not currently a server base OS. It is simply made to filter, control, and forward traffic within your organization. The kernel has been optimized specifically for handling large flows of traffic as well as providing extra interfaces for migrating to IPv6. An optimal emBSD system will not have moving disks inside to potentially fail. Solid-state disks are employed on the majority of our critical machines.

The project developers are Ken Rice and Truman Boyes.

Download

emBSD 1.1 i386 16.2MB.zip
md5sum: fc75b7206ed25b07eb8447e30ee73a2f

 

NetBSD/i386 Firewall

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Web site: firewall.dubbele.com
Origin: Netherlands ?
Category: Firewall
Desktop environment: CLI
Architecture: x86
Based on: NetBSD
Wikipedia:
Media: Install
The last version | Released: ? | November 22, 2001

NetBSD/i386 Firewall – a NetBSD based, a free highly portable UNIX-like operating system available for many platforms, from 64bit alpha servers to handheld devices. It is a free firewall solution for people with a permanent Internet connection. This includes most users of cable or ADSL services, but also businesses with leased lines. PPPoE support and PPTP support is available on CD.

The base system is kept as lean and mean as possible, but there’s plenty of room to add services, such as your own mail and web server.

The standard NetBSD install has been extensively modified to make install as simple and straightforward as possible, and it is geared towards people who have no Unix knowledge and do not intend to get any.

NetBSD/i386 Firewall supports all the hardware that is supported by a standard NetBSD install.

The minimal configuration for a NetBSD/Firewall system requires a 80486 processor, 8M of RAM and about 40M of disk space. A minimum install of NetBSD is 4 MB of RAM on a 80386, but for a busy firewall, it is recommended a bit higher than that. Of course, you’re free to experiment if you’ve got a 80386 with 4 MB of RAM. Any i386 or better CPU should work – genuine Intel or a compatible such as Cyrix, AMD, or NexGen.

Download

NetBSD/i386 Firewall boot i386 2.17MB.zip
md5sum: 9a3fde5896ba6a08f03da44ff3dacbdd

 

Buhawi

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Web site: www.bluepoint.com.ph/buhawi/ (not active)
Origin: Philippines
Category: Desktop
Desktop environment: ?
Architecture: x86
Based on: Red Hat Linux
Wikipedia:
Media: Install
The last version | Released: ? | 2001 ?

Buhawi Linux – (Filipino for tornado) is a compact Linux distribution optimally designed for network servers.

It uses a concise file system hierarchy and lean, fast, text-based configuration tools. Buhawi was developed mainly because of the tendency of many other Linux distributions to put more emphasis on desktop systems and less on servers, for which Linux has already been proven to be an ideal operating system.

It was a full commercial-scaleat distribiution which was available through the labs of the Bluepoint Institute of Higher Technology Foundation web page.

Download

No download is available.

 

AtheOS

AtheOS

Web site: http://atheos.syllable.org
Origin: Norway
Category: Desktop
Desktop environment: GUI
Architecture: x86
Based on: Independent
Wikipedia: AtheOS
Media: Live
The last version | Released: 0.3.7 | October 9, 2001

AtheOS – a free and open-source desktop operating system initially intended as an AmigaOS clone. AtheOS currently run on Intel, AMD and other compatible processors and support the Intel Multi Processor architecture.

AtheOS is not meant to be a new Unix clone (like Linux and *BSD) but a new clean desktop OS. It does support large parts of the POSIX standard and hence are able to run most of the UNIX CLI tools and it comes with a standard UNIX shell (BASH) but this does not compromise anything in AtheOS as a desktop OS. AtheOS have a integrated GUI that works in conjunction with the kernel and various other components to create a complete and consistent system.

The AtheOS GUI consists of two main components: An application server and a dll providing a C++ interface between the server and the application. The GUI is therefore programmed through a C++ API providing windows containing a hierarchy of widgets that all have their own graphical environment.

The kernel was written from scratch. It supports SMP (Symmetric Multi Processing), has a built-in network TCP/IP stack.

The system was under development between 1994 and 2001 by Kurt Skauen.

There is a fork based on AtheOS called Syllable.

Download

AtheOS 0.3.7 i386 20MB.tgz
md5sum: b3e56794b6d62db0a30910c006a842b4