Oclug 2010
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Oclug 2010



My presentation for December OCLUG meeting.

My presentation for December OCLUG meeting.



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Oclug 2010 Presentation Transcript

  • 1. BSD For Linux UsersDru LavigneCommunity Manager, PC-BSD ProjectOCLUG, December 7, 2010
  • 2. This presentation will cover...What exactly is BSD?How is it different from Linux?Does release engineering matter?Any features unique to BSD?Additional Resources
  • 3. What exactly is BSD?
  • 4. aka What exactly is Linux?
  • 5. kernel?
  • 6. distro?
  • 7. What is BSD?Began as a series of patches andcontributed applications for Unix from theUniversity of BerkeleyForked into several projects when Berkeleystopped working on BSDTwenty Years of Berkeley Unix: From AT&T-Owned to Freely Redistributablehttp://oreilly.com/catalog/opensources/book/kirkmck.html
  • 8. What is BSD?Projects originally differentiated by focus:NetBSD: clean design and portability (57supported platforms)FreeBSD: production server stability andapplication support (22,431 apps)OpenBSD: security and dependablerelease cycleDragonfly BSD: filesystem architecturePC-BSD: anyone can install and use BSD
  • 9. How is BSD different from Linux?
  • 10. Gnome on Ubuntu
  • 11. KDE on PC-BSD
  • 12. device names
  • 13. startup (no runlevels)
  • 14. one config file philosophy
  • 15. kernel configuration
  • 16. consistent layout (man hier)
  • 17. BSD vs GNU switches
  • 18. working examples
  • 19. Release Engineering?
  • 20. Release EngineeringComplete operating system, not kernel +distro: one source for security advisories,less likelihood of incompatible librariesIntegration of features not limited bycopyleft: e.g. drivers and features are built-inHigh 鈥渂us factor鈥滳onsistent separation between operatingsystem and third party and between BSDand GPLd code
  • 21. Release Engineering鈼 commit bit indicates write permission to code repository鈼 FreeBSD 446 commit bits鈼 NetBSD 264 commit bits鈼 OpenBSD 132 commit bits鈼 plus thousands of contributors for software, docs, translations, bug fixes, etc鈼 Linux has 1 committer, 638 maintainers
  • 22. Release EngineeringPrinciples used by the BSD projects reflecttheir academic roots:鈼 well defined process for earning a 鈥渃ommit bit鈥 includes a period of working under a mentor鈼 code repository from Day 1 and can trace original code back to CSRG days鈼 no 鈥渓eader鈥, instead well defined release engineering, security, and doc teams
  • 23. Release Engineering鈼 development occurs on CURRENT which is frozen in preparation for a RELEASE鈼 nightly builds (operating system and apps) help ensure that upgrades and installs dont result in library incompatibilities (safe for production)鈼 documentation considered as important as code
  • 24. Features unique to BSD?
  • 25. securelevels
  • 26. FreeBSD jails
  • 27. NetBSD build.sh
  • 28. pkgsrc
  • 29. PC-BSD PBIs
  • 30. VuXML and portaudit or pkg_admin audit for pkgsrc systems
  • 31. NetBSD veriexec
  • 32. binary emulation
  • 33. FreeBSD netgraph
  • 34. ZFS support
  • 35. FreeBSD dtrace suport
  • 36. CARP
  • 37. FreeBSD superpages
  • 38. OpenBSM
  • 39. FreeBSD snapshots
  • 40. ALTQ
  • 41. DragonFly HAMMER
  • 42. Automated Testing Framework
  • 43. Non-GPLd Toolchain
  • 44. Additional ResourcesHow the FreeBSD Project Workshttp://2007.asiabsdcon.org/papers/P08-slides.pdfFreeBSD Developmenthttp://www.freebsd.org/projects/index.htmlThe NetBSD Wayhttp://www.fosslc.org/drupal/content/netbsd-way-0NetBSD Developmenthttp://www.netbsd.org/developers/
  • 45. Questions?http://www.slideshare.net /dlavigne/oclug-2010 dru@freebsd.org