Minix aims to support a modern BSD look and feel. This page documents features missing in Minix that you'd expect in a modern BSD but are missing in Minix.

• memory-mapped files (there is a minix_mmap() but it doesn't map files)
• job control (setpgid())
• TCP/IP API is partly compatible but lots of missing details
• setrlimit()
• rusage()
• threads
• sysctl
• rc - There currently are similarities, but also incompatibilities.
• send-pr - This might change the current feedback cycle of public message → ignore / bug ticket.
• setregid