1. Computer Technology Project
Distros
Lars Noodén

2. EC The European Commission insists on Open Source Open Standards
"For all new development, where deployment and usage is foreseen by parties outside of the Commission Infrastructure, Open Source Software will be the preferred development and deployment platform." (2008)

3. Definitions FOSS - Free and Open Source Software
Distro - an operating system distributed as packaged set including
a kernel
device drivers,
file systems,
utilities and
sometimes user applications
Stable - not changing

4. Stable Kernel modules drivers Programs version Same programs
e.g. Firefox
Same versions of the programs
e.g. KDE 3.5.x
Goal met: 100% predictable

5. Support Cycle
Release
Stable
Devel
Development
Release
Maintenance
EOL

6. v1 v2 v3 etc Development Devel Stable Devel Release Stable Devel

7. Definitions
Patch – repairs or addresses a specific problem without otherwise changing functionality or behavior.
Upgrade – essentially a new package with possible changes in functionality, behavior, appearance, price or licensing.

8. OpenBSD Development There are three "flavors" of OpenBSD:
-release: The version of OpenBSD shipped every six months on CD.
-stable: Release, plus patches for security and reliability.
-current: Where new development work is done. Eventually, it will become the next release.
Release
Stable
Current

9. Debian Development There are three "flavors" of Debian:
-stable: The released and supported version, with patches for maintenance and security
-testing: In queue to become "stable", packages selected, but maybe not all arch.
-unstable: Where new development work is presently being done, and eventually, it will turn into the next testing.
Stable
Testing
Unstable

10. Ubuntu
Ubuntu is built from Debian-testing

11. Distro Components One Kernel: Drivers:
File System: afs, ext, hfs, ufs, ffs, ntfs, iso9660, zfs
Utilities:
Utilities
Desktop Environment:
(plus window manager)
(plus themes)
(plus default settings)
Programs:

12. Click to add an outline Solaris NetBSD OpenBSD DragonFlyBSD Slackware
Debian
Ubuntu/Kubuntu
Xubuntu/Fluxbuntu
Fedora
RHEL (Red Hat)
CentOS

13. Definitions core - processor
multi-core - multiple processors in a single chip
processor - executes programs
RAM - physical computer memory

14. Solaris Widely used Server and Workstation System
Common Development and Distribution License (CDDL) Version 1.0:
view,
modify,
build,
use, and
redistribute

15. Solaris GNU tool chain "Zones" - Virtualization
x86, x86-64, Sparc architectures
High-end systems
> 64 GB RAM
> 8 cores
areas/high_end_servers.shtml

16. NetBSD Often in Embedded Systems and Servers http://netbsd.org/
BSD License:
view,
modify,
build,
use, and
redistribute

17. NetBSD "Of course it runs NetBSD" Highly portable http://netbsd.org/
BSD License:
view,
modify,
build,
use, and
redistribute

18. NetBSD
Often in Embedded Systems and Servers
GNU / BSD tool chain

19. OpenBSD Often in Embedded Systems and Servers http://openbsd.org/
BSD License:
view,
modify,
build,
use, and
redistribute

20. OpenBSD
"Only two remote holes in the default install, in more than 10 years!"
Standards oriented, proactive security, encryption
GNU - BSD toolchain

21. Others DragonFly BSD Slackware GNU/Linux Gentoo GNU/Linux
Fedora GNU/Linux
RHEL (Red Hat)
CentOS
YellowDog
K12LTSP
Arch GNU/Linux
OpenWRT
Debian GNU/Solaris
Nexenta
Debian GNU/Linux
Finnix
Knoppix
Damn Small Linux
Skolelinux / Edubuntu
Maemo
Debian GNU/NetBSD
Puppy Linux

22. Computer Technology Project
Distros
Lars Noodén