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hi guys
i was thinking about using another os to be the base of my os.
this os is under the terms of the bsd license.
so, can i license the portion of code that i wrote in different license as GPL for example or a Properity license ?
If i can, then i don't have to release the source-code since it can be located on the original project while mine is mine, right ?
But i have to include that this product was based on that porject in the binary/source distributions, right ?

Thanks

Unlink wrote: hi guys
i was thinking about using another os to be the base of my os.
this os is under the terms of the bsd license.
so, can i license the portion of code that i wrote in different license as GPL for example or a Properity license ?

The new or the old BSD license?

If it's the old, you can't do either. You have to give credit where it is due and the code that was must remain under BSD. BSD old-style doesn't prohibit you using it though.

If it's the new, you can make it GPL (BSD new-style is GPL compatible). You can also use it in proprietary, whereas you still have to keep that code itself as BSD (but BSD doesn't limit you furthermore).

If i can, then i don't have to release the source-code since it can be located on the original project while mine is mine, right ?
But i have to include that this product was based on that porject in the binary/source distributions, right ?

You have to keep information about it's source in source comments, binary info that's set in the source and (bsd old-style) you have to mention it in an about-box or such. Read the license to figure it out, that's the only way to know for sure. People write licenses so you can read them to know what they contain.

If you compile your OS kernel into a single binary, all BSD code you use in that kernel falls under GPL.

ahm...
so the portion of code that i wrote myself must be under BSDL and i can't copyright my own code !
another thing can't i remove the copyright notice from each source file and just include a file descriping its file and its license, or just include the license with files ?

so the portion of code that i wrote myself must be under BSDL and i can't copyright my own code!

No, you can copyright your code and distribute it under either a compatible open-source license or a closed-source license, as long as you follow the requirments of the BSD license.

The BSD license is one of the most straightforward of all the open-source licenses out there; it isn't that hard to figure out!

@ Unlink:

Your meaning is unclear.

My response was written under the impression that you want to mix BSD code with GPL code.

I was interested in doing the same thing. I found out in the freebsd site, somewhere, doesn't remember where, that I can use the code from freebsd to do whatever I want, provided that
1. I give credits to the authors, I think
2. People can do whatever with whatever I made with the code, just like whatever I made with freebsd.

So, I decided to NOT use freebsd. My OS will be a slow, long ride. I will read carefully the Intel book, and if God please, my OS will be ready in a few weeks or a few months.

rikrispy wrote: So, I decided to NOT use freebsd. My OS will be a slow, long ride. I will read carefully the Intel book, and if God please, my OS will be ready in a few weeks or a few months.

Few weeks? You better say few years or much more! Well, that depends on what you want to(real mode, singletasking system using BIOS for most of things), but still few week is short period to implement it correctly.