Porting Unix to the 386: A Practical Approach

William & Lynne Jolitz

Started open source UNIX.

Appeared in part as a 17 article magazine series in 1991-1992.

Documented the "how, what, why, who, when" of porting BSD to the 386.

Done while BSD was becoming "open source".

Porting Unix to the 386: A Practical Approach - file operations performance

file operations performance:

The Role of the Root Filesystem

The root filesystem is a small, essential portion of disk storage, providing functionality to expand its resources to use storage other than the root itself, and configure system operations. The root usually survives intact when a system crash occurs, allowing system operation during recovery.