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Linux Distribution: DragonFly
Url: http://www.dragonflybsd.org/

 
DragonFly is an operating system and environment designed to be the logical continuation of the FreeBSD-4.x OS series.

About DragonFly
These operating systems belong in the same class as Linux in that they are based on UNIX ideals and APIs. DragonFly is a fork in the path, so to speak, giving the BSD base an opportunity to grow in an entirely new direction from the one taken in the FreeBSD-5 series.

It is our belief that the correct choice of features and algorithms can yield the potential for excellent scalability, robustness, and debuggability in a number of broad system categories. Not just for SMP or NUMA, but for everything from a single-node UP system to a massively clustered system. It is our belief that a fairly simple but wide-ranging set of goals will lay the groundwork for future growth. The existing BSD cores, including FreeBSD-5, are still primarily based on models which could at best be called 'strained' as they are applied to modern systems. The true innovation has given way to basically just laying on hacks to add features, such as encrypted disks and security layering that in a better environment could be developed at far less cost and with far greater flexibility.

We also believe that it is important to provide API solutions which allow reasonable backwards and forwards version compatibility, at least between userland and the kernel, in a mix-and-match environment. If one considers the situation from the ultimate in clustering... secure anonymous system clustering over the internet, the necessity of having properly specified APIs becomes apparent.

Finally, we believe that a fully integrated and feature-full upgrade mechanism should exist to allow end users and system operators of all walks of life to easily maintain their systems. Debian Linux has shown us the way, but it is possible to do better.

DragonFly is going to be a multi-year project at the very least. Achieving our goal set will require a great deal of groundwork just to reposition existing mechanisms to fit the new models. The goals link will take you to a more detailed description of what we hope to accomplish.

Releases:
2008-09-03 00:00:00.0 DragonFly BSD 2.1-DEVEL "Live DVD" is available    View
The first version of the DragonFly BSD live DVD is done! Besides the full DragonFly BSD base system, the DVD includes an X desktop, a basic set of utilities and applications, and installation tools. Certain directories, are remounted read-write using MFS, and without swap this live DVD will not work well with less than 256 MB of RAM. This live DVD is meant to be useful for testing hardware compatibility, and some core aspects of the DragonFly BSD operating system. Please keep in mind though that it is undergoing development and should still be considered experimental. As always, back up important data before making any changes to your hard disk.
2008-07-28 00:00:00.0 DragonFly BSD 2.0 has been released    View
2.0 is our eighth major DragonFly release. DragonFly's policy is to only commit bug fixes to release branches.
2008-04-21 00:00:00.0 DragonFly BSD 1.12.2 is available    View
DragonFly BSD 1.12.2 released. A significant number of bug and security fixes have been merged from current to the 1.12 branch over the last two months and we have rolled a new sub-release, 1.12.2, for the benefit of our users. We recommend that 1.12 users upgrade. In addition there is a known issue related to building pkgsrc packages from source which is addressed in the above release notes. Basically the M4 package sources needs to be patched. This applies to HEAD users as well." Changes: "Fix wide symbols (wstring, wint_t etc) support in gcc41 (libstdc++); add libc support for gcc41 stack protector; update bzip2 to 1.0.5....
2008-02-27 00:00:00.0 DragonFly BSD 1.12 is available    View
We are happy to say that the 1.12 release is now available! This release is primarily a maintenance update. A lot of work has been done all over the kernel and userland. There are no new big-ticket items though we have pushed the MP lock further into the kernel. The 2.0 release is scheduled for mid-year. Of the current big-ticket item work, the new HAMMER filesystem is almost at the alpha stage of development and is expected to be production ready by the mid-year 2.0 release.
2007-08-09 00:00:00.0 DragonFly BSD 1.10 is available    View
1.10 is our sixth major DragonFly release. Several big-ticket items are present in this release. Our default ATA driver has been switched to NATA (ported from FreeBSD). NATAs big claim to fame is support for AHCI which is the native SATA protocol standard. It is far, far better than the old ATA/IDE protocol. DragonFly now has non-booting support for GPT partitioning and 64-bit disklabels. Non-booting means we don't have boot support for these formats yet. DragonFly's Light Weight Process abstraction is now finished and working via libthread_xu but the default threading library is not quite ready to be changed from libc_r yet.
2006-07-25 00:00:00.0 DragonFly BSD 1.6 has been released now    View
1.6 is our fourth major DragonFly release. DragonFly's policy is to only commit bug fixes to release branches. The biggest user-visible changes in this release are a new random number generator, a massive reorganization of the 802.11 (wireless) framework, and extensive bug fixes in the kernel. We also made significant progress in pushing the big giant lock inward and made extensive modifications to the kernel infrastructure with an eye towards DragonFly's main clustering and userland VFS goals. We consider 1.6 to be more stable then 1.4.
 
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