GNU/linux usa la GNU General Public License
FreeBSD usa la FreeBSD License vedasi:

http://www.gnu.org/licenses/license-list.html#SoftwareLicenses

FreeBSD license

This is the original BSD license with the advertising clause and another clause removed.

(It is also sometimes called the “2-clause BSD license”.)

It is a simple, permissive non-copyleft free software license, compatible with the GNU GPL.

If you want a simple, permissive non-copyleft free software license, the FreeBSD license is a reasonable choice.

However, please don’t call it a “BSD” or “BSD-style” license, because that is likely to cause confusion which could lead to use of the flawed original BSD license.

ZFS non può esse implementato in GNU/linux per via della licenza sun microsystems

http://www.gnu.org/licenses/license-list.html#SoftwareLicenses

Common Development and Distribution License (CDDL)

This is a free software license.

It has a copyleft with a scope that’s similar to the one in the Mozilla Public License, which makes it incompatible with the GNU GPL.

This means a module covered by the GPL and a module covered by the CDDL cannot legally be linked together.

We urge you not to use the CDDL for this reason.

Also unfortunate in the CDDL is its use of the term “intellectual property”.

Noi come alternativa abbiamo con licenza GNU General Public License LVM ed anche quello di Tru64 chiamato ADvFS vedasi

http://slashdot.org/search.pl?query=tru64

Tru64 Unix Advanced File System (AdvFS) Now GPL
On June 23rd, 2008 with 226 comments melios writes

“In a move that could help boost the scalability of Linux for grids and other advanced 64-bit multiprocessor applications, HP has released its…

http://linux.slashdot.org/article.pl?sid=08/06/23/1728259

Tru64 Unix Advanced File System (AdvFS) Now GPL
Posted by ScuttleMonkey on Mon Jun 23, 2008 03:51 PM
from the yet-another-convert dept.

melios writes “In a move that could help boost the scalability of Linux for grids and other advanced 64-bit multiprocessor applications, HP has released its Tru64 Unix Advanced File System

http://www.betanews.com/article/HP-releases-64bit-Unix-file-system-for-Linux-open-sourcing/1214236971

(AdvFS) source code to the open source community.

Source code, design documentation, and test suites for AdvFS are available on SourceForge.”

http://advfs.sourceforge.net

sistemi invece come FreeBSD, NetBSD, OpenBSD, possono implementare ZFS.

nella distribuzione GNU/linux gentoo si fa uso di LVM vedasi http://en.gentoo-wiki.com/wiki/LVM

una distribuzione totalmente software libero come GNU/linux gentoo è GNU/linux Ututo vedasi

http://www.ututo.org/www

altre distribuzioni totalmente software libero sono riportate su

http://www.gnu.org/links/links.html#FreeGNULinuxDistributions

saluti paolo

Debian GNU/kFreeBSD is a port that consists of GNU userland using the GNU C library on top of FreeBSD’s kernel, coupled with the regular Debian package set.

The GNU C library was ported to FreeBSD’s kernel by Bruno Haible.
Get started

The base system is fully functional. For installing Debian GNU/kFreeBSD and other useful information, refer to the install notes.

There exist several mirrors. You can use the base system in the tarball to fetch packages from it. Most of the packages in Debian unstable are ported and available in this archive.
How to help

There’s still a large amount of packages that need fixing. Luckily, because we use Glibc the portability problems are very simple and most times it’s just a matter of copying a test case for “k*bsd*-gnu” from another Glibc-based system (like GNU or GNU/Linux). Look at the porting document for details.

If you want to help porting packages, look at our patches directory first to ensure you don’t repeat already done work. (Please don’t submit patches from our directory, many of them are not ready to be sent.)

Also look at the TODO file for more details on what needs to be done.
Contact

Debian GNU/k*BSD mailing list. The old Debian Glibc-BSD mailing list is now defunct.

#debian-kbsd IRC channel (at irc.debian.org).

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