Typo in section 1.2 (Overview) of FreeBSD's Architecture Handbook (arch-handbook). The data path in "For example, looking at /usr/sys/src/boot reveals a great amount" should read /usr/src/sys/boot instead.
A commit references this bug: Author: jgh Date: Fri Jan 30 04:17:18 UTC 2015 New revision: 46240 URL: https://svnweb.freebsd.org/changeset/doc/46240 Log: - fix typo in directory path PR: 197067 Differential Revision: https://reviews.freebsd.org/D1713 Submitted by: mathias@monnerville.com Approved by: wblock (mentor) Changes: head/en_US.ISO8859-1/books/arch-handbook/boot/chapter.xml