I am trying to setup SheepShaver on Ubuntu that I just dualbooted onto my machine. A problem I am having is that when I get everything setup and try to start, I get this error:
Not sure if that's due to the compiler you used or the security settings in your OS, but it's to be expected -- SheepShaver allocates low-memory, and so the global variables reside there too. As a result, any OS or compiler that does the right thing and secures low memory so it can't be referenced from inside the OS will prevent SheepShaver from running.
What version of Ubuntu are you using? What version of libc are you using? What version of gcc are you using? Do you have any enhanced security features enabled?