Is it possible to change BSD licence to GPL for 4.4BSD-Lite's source code?

kevin hlwhyw at
Sun May 4 15:56:55 UTC 2008

Hi, all
I want to port 4.4BSD-Lite's TCP/IP source code to my own OS kernel.
My OS kernel is GPL licenced.
Is it possible for me to modify 4.4BSD-Lite's source code and change its licence from 4.4BSD-Lite licence to GPL licence?

Kevin Wu

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