BSD can refer to any of the following acronyms:

• Bahamian dollar, ISO 4217 code BSD
• Beaverton School District, a school district in Beaverton, Oregon, USA
• Bellevue School District, the school district of Bellevue, Washington, USA
• Benoit School District, the school district of Benoit, Mississippi, USA
• Berkeley Software Distribution, a free Unix-like operating system, and numerous variants
• BSD licenses, permissive licenses that are among the most widely used free software licenses
• Big Swinging Dick, term of praise for a particularly brash financier popularized by Michael Lewis's Liar's Poker
• Birch and Swinnerton-Dyer conjecture, an important unsolved problem in mathematics
• Birsa Seva Dal, a political group in India
• Black Spiral Dancers, a Tribe of evil-aligned werewolves in the White Wolf produced role-playing game Werewolf: The Apocalypse
• Blue Screen of Death, a computer jargon phrase related to Microsoft Windows. Also referred to as BSOD
• Blue Shell Dodge, the dodging of a Blue (Spiny) Shell in the later Mario Kart series
• Blue State Digital, a new media strategy and technology firm
• Bob- und Schlittenverband für Deutschland, the bobsleigh, luge, and skeleton federation for Germany
• Dracula (1992 film)
• BSD Records, a 1950s record label
• BSD, a Jewish acronym for Besiyata Dishmaya - "With the help of Heaven" in Aramaic language
• Burlingame School District, a school district in Burlingame, California, USA
• Brain stem death
• Bumi Serpong Damai or BSD City, a district in Serpong, South Tangerang regency, Indonesia

See also[link]

• BSDi — Berkeley Software Design

This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.

This biographical article needs additional citations for verification. Please help by adding reliable sources. Contentious material about living persons that is unsourced or poorly sourced must be removed immediately, especially if potentially libelous or harmful. (June 2011)

Marshall Kirk McKusick
Education	University of California at Berkeley
Partner	Eric Allman

Marshall Kirk McKusick (born January 19, 1954 in Wilmington, Delaware) is a computer scientist, known for his extensive work on BSD, from the 1980s to FreeBSD in the present day. He was president of the USENIX Association from 1990 to 1992 and again from 2002 to 2004, and still serves on the board. He is also on the editorial board of ACM Queue Magazine. He is known to friends and colleagues as "Kirk".

McKusick received his B.S. in electrical engineering from Cornell University, and 2 M.S. degrees (in 1979 and 1980 respectively) and a Ph.D. in computer science from the University of California, Berkeley in 1984. [1]

He lives in California with Eric Allman, his domestic partner since graduate school.^[1] McKusick is an avid wine collector and the temperature and vital statistics of his house and wine cellar are available on the web from his homepage.

BSD[link]

McKusick started with BSD by virtue of the fact that he shared an office at Berkeley with Bill Joy, who in essence spearheaded the beginnings of the BSD system.^[2]

Some of his largest contributions to BSD have been to the file system. He helped design the original Berkeley Fast File System (FFS). More recently, he implemented soft updates, an alternative approach to maintaining disk integrity after a crash or power outage, in FFS, and a revised version of UFS known as "UFS2". The magic number used in the UFS2 super block structure reflects McKusick's birth date: #define FS_UFS2_MAGIC 0x19540119 (as found in /usr/include/ufs/ffs/fs.h on FreeBSD systems).

He was also primarily responsible for creating the complementary features of filesystem snapshots and background fsck (file system check and repair), which both integrate closely with soft updates. After the filesystem snapshot, the filesystem can be brought up immediately after a power outage, and fsck can run as a background process.

The Design and Implementation series of books are regarded as very high quality works in computer science. They have been strongly influential in the development of the BSD descendants and have contributed to their cohesive and well-thought-out nature. The well-known daemon image, often used to identify BSD, is copyrighted by Marshall Kirk McKusick.^[3]

Bibliography[link]

• S. Leffler, M. McKusick, M. Karels, J. Quarterman: The Design and Implementation of the 4.3BSD UNIX Operating System, Addison-Wesley, January 1989, ISBN 0-201-06196-1. German translation published June 1990, ISBN 3-89319-239-5. Japanese translation published June 1991, ISBN 4-621-03607-6 (out of print).
• S. Leffler, M. McKusick: The Design and Implementation of the 4.3BSD UNIX Operating System Answer Book, Addison-Wesley, April 1991, ISBN 0-201-54629-9. Japanese translation published January 1992, ISBN 4-8081-8039-5
• M. McKusick, K. Bostic, M. Karels, J. Quarterman: The Design and Implementation of the 4.4BSD Operating System, Addison-Wesley, April 1996, ISBN 0-201-54979-4. French translation published 1997, International Thomson Publishing, Paris, France, ISBN 2-84180-142-X.
• McKusick, 1999 Twenty Years of Berkeley Unix (from the book Open Sources: Voices from the Open Source Revolution ISBN 1-56592-582-3)
• M. McKusick, George Neville-Neil: The Design and Implementation of the FreeBSD Operating System, Addison-Wesley, July 2004, ISBN 0-201-70245-2

References[link]

External links[link]

• McKusick's home page

This biographical article needs additional citations for verification. Please help by adding reliable sources. Contentious material about living persons that is unsourced or poorly sourced must be removed immediately, especially if potentially libelous or harmful. (January 2011)

Dru Lavigne is a network and systems administrator, IT instructor, technical writer and director at FreeBSD Foundation.

She has been using FreeBSD since 1996, has authored several BSD books, and spent over 10 years developing training materials and providing training on the administration of FreeBSD systems.

A prolific author, she has written for O'Reilly, TechRepublic, DNSStuff, and OpenLogic, contributed to Linux Hacks and Hacking Linux Exposed, and is author of BSD Hacks and The Best of FreeBSD Basics. Her third and latest book, The Definitive Guide to PC-BSD,^[1] is due to be released in early 2010. She has over a decade of experience administering and teaching Netware, Microsoft, Cisco, Checkpoint, SCO, Solaris, Linux and BSD systems.

She writes the widely read technical blog A Year in the Life of a BSD Guru on Toolbox.com.

She is founder and Managing Editor of the Open Source Business Resource, a free monthly publication covering open source and the commercialization of open source assets. She is founder and current Chair of the BSD Certification Group Inc., a non-profit organization with a mission to create the standard for certifying BSD system administrators.

External links[link]

• Dru Lavigne's Blog

References[link]