Unix or Linux?

[nene7]

Hi to all,
I want to know what open source SO are clasified Unix like opensolaris?

[aeiah]

OpenBSD, FreeBSD and their derivatives are probably where you should look

[nene7]

Why ubuntu is not clasified unix? What things make ubuntu are linux(like-unix)?

[Shining Arcanine]

Hi to all,
I want to know what open source SO are clasified Unix like opensolaris?

UNIX is anything that abides by the Single Unix Specification. Linux is a UNIX kernel that can be combined with various userland utilities to meet the requirements of the Single Unix Specification. It in itself is not necessarily UNIX, but it is close.

Some Linux distributions such as Redhat Enterprise Linux are certified to be Single Unix Specification compliant. I am not sure what is keeping Canonical from doing this with Ubuntu, but the primary factor is most likely cost. Any secondary factors could be resolved by modifying their choice of packages they provide with Ubuntu or changing kernel .config options.

In short, you can consider Ubuntu to be a UNIX OS.

[nmccrina]

ninja'd

[kavon89]

According to wikipedia, no Linux distros have been certified to meet the single Unix specification. Most Linux distros like Ubuntu, however, still follow the standard enough to where one can call Linux based OSes Unix-like.

[Shining Arcanine]

According to wikipedia, no Linux distros have been certified to meet the single Unix specification. Most Linux distros like Ubuntu, however, still follow the standard enough to where one can call Linux based OSes Unix-like.

I thought that RedHat Enterprise Linux was certified. I guess I was wrong.

[HermanAB]

It is mainly a trademark issue. To use the UNIX trademark, you got to pay a license fee to the Open Group.

So, legally, we are not allowed to say that Linux is a kind of UNIX. However, we can say that UNIX is a kind of Linux.

[nene7]

@Shining Arcanine why the cost is one factor?
Does canonial limit ubuntu not register or is that ubuntu bein linux never are goint to be unix because is unix clone?

[kaldor]

Linux is close enough to UNIX to be called a UNIX clone; compare Linux to BSD or Solaris which true UNIX. Not a massive amount of difference.