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Distribuzioni GNU/Linux

• Motivazioni

• Nozioni di base

• CVS

• Package Management

• Esempi di distribuzione

Distribuzioni GNU/Linux - Motivazioni (1/2)

• Eccesso di risorse
  • Finalitą non-competitiva/pre-competitiva
  • Duplicazione di funzionalitą
  • Forking (es.: MPlayer - Arpad Gereoffy)
  • Livello di maturitą
  • Destinazione
    • General purpose
    • Security enhanced
    • ...

• Modularitą e divenire
  • Compatibilitą fra applicazioni interdipendenti
  • Interfacce librerie
  • Aggiunta funzionalitą
  • Supporto nuovo hardware

Distribuzioni GNU/Linux - Motivazioni (2/2)

• Gestione
  • Installazione
  • Mantenimento (aggiornamento)
    • Bug fixes
    • Miglioramenti funzionali
    • Rimozione strumenti non usati

• Ricerca di vantaggio competitivo
  • Sostegno/finanziamento progetti GPL
  • Assunzione di garanzia
    • Supporto tecnico
    • Certificazione
  • Accelerazione diffusione massificata GNU/Linux
    • Documentazione
    • Supporto operativo a utenti (call-center)
    • Interfacce «idiot proof»

&TT25 (...)

NO WARRANTY

&TT25 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.

12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.

&TT25 (...)

Distribuzioni GNU/Linux - Nozioni base

• File archivio
  • tar
  • ISO-9660 CDROM

• File package
  • rpm, deb, ipk, ...

• Versioning
  • diff/patch/cvs
  • qualitą stable/development/snapshot

• Boot loader
  • LILO, Grub
  • etherboot

• automake

CVS - Concurrent Versions System

• Source repository centrale

• Checkin/checkout

• Accesso concorrente a file e risoluzione conflitti

• Storia revisioni

• Tagging/Branching

RPM - RedHat Package Manager

• rpm

• kpackage

• redhat-config-packages

• apt

• synaptic

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