Computer Technology Project Distros Lars Noodén

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) – 3/469

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

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

Support Cycle ● Development ● Release ● Maintenance ● EOL Release Stable Devel

Development Release Stable Devel Release Stable Devel Release Stable Devel v1v1 v2v2 v3v3 etc Release Stable Devel

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.

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 Release Stable Current

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. StableTesting Unstable StableTesting Unstable

Ubuntu ● Ubuntu is built from Debian-testing

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

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

Definitions ● core - processor ● mult-core - multiple processors in a single chip ● processor - executes programs ● RAM - physical computer memory

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

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

NetBSD ● Often in Embedded Systems and Servers ● ● BSD License: ● view, ● modify, ● build, ● use, and ● redistribute

NetBSD ● "Of course it runs NetBSD" ● Highly portable ● ● BSD License: ● view, ● modify, ● build, ● use, and ● redistribute

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

OpenBSD ● Often in Embedded Systems and Servers ● ● BSD License: ● view, ● modify, ● build, ● use, and ● redistribute

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

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

Computer Technology Project Distros Lars Noodén