Hello, I have heard that people use both Bochs and UML (user mode Linux) for kernel development. I am interested in using one of these myself and would be interested to hear which of these people have found most useful. Best wishes, Bill. -- Dr. William Bland. Computer Programmer, UK. www.abstractnonsense.com -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/