1. Section 1: Linux Basics and SLES9 Installation

2. Objective 1 The History of Linux

3. The Historical Development of UNIX
Most computers at the end of the 1960's were designed for batch jobs
Batch processing was highly inefficient
Multics was one of the first systems to allow multiple simultaneous users to be logged on
Unix was created soon thereafter (1969) as an upgrade to Multics
First version written in Assembler
Next version written in C in 1971
UNIX code was distributed freely to Universities and become increasingly popular

4. The Historical Development of UNIX (2)
Several UNIX derivatives were developed
IBM
HP UX HP
1982
BSD Unix
Developed by University of California Berkeley
1978
Unix System V
AT & T
Became Unix Standard

5. The Historical Development of UNIX (3)
All Modern Unix System are either considered System V or BSD

6. The Development of Linux
Spring 1991 Linus Torvalds created his own Linux Kernel in C
Linus Torvalds made the source code of his Linux kernel available with a GPL
GPL allows anyone to read and edit source code
Requires all edited code to be made public
Linux Kernel Functions
Input and Output control
Device Control
Process Management
File Management
System Components
Shell Utilities
Network programs
Non-Intel Kernel implementations

7. The Development of Linux (2)
Supported hardware platforms
i386: 32bit
Intel/A MD
PowerPC
SPARC (Sun)
IBM pSeries
IBM zSeries
Embedded

8. Objective 2 Understanding the Multi User Environment

9. Objective 3 Identify the Components of SLES 9
Updated Core System with Latest Versions
New and Improved YAST Modules
Next Generation Linux Kernel 2.6.5
Improved High Availability Support
Full Enablement and Support of UTF-8
Inclusion of Red Carpet Enterprise Daemon
New Type of Installation Source: SLP
POSIX-Compliant, High Performance Threads Support (NPTL)

10. Objective 4 Perform Simple Installation of SLES 9
Pre-Installation Requirements and Guidelines
Installation Options
Basic Installation
Manual Software Selection
Configuration

11. Objective 5 Documentation, Installation and Baseline System Performance
Document Installations and Maintenance
Document Configuration Changes
Document System Baseline Performance

12. Summary
Linux is an advanced multiuser and multitasking OS developed by Linus Torvalds
Can run on nearly any hardware platform
Based on the UNIX OS
UNIX was developed by Ken Thompson and Dennis Ritchie
Linux source code is protected under the GNU Public License (GPL) which allows it to be publicly developed and distributed
There are many different distributions of the Linux OS. One of the most prominent distributions is SUES Linux
SUSE Linux Professional contains approximately 3500 packages
SUSE Linux Enterprise Server (SLES) contains a fully supported subset of packages included
SLES distributions have a general life cycle of approximately 5 years

13. Summary (2)
Before installing any version of Linux you should ensure that your system meets the minimum requirements
SLES distributions have more support for Server - class computers than for laptops
The SLES installation process involves:
Selecting a language
Choosing software packages
Selecting a hard disk partitioning scheme
Providing a root user password
Selecting a network
Selecting services
Creating Additional users
Selecting Device settings

14. Summary (3)
For future use in troubleshooting and maintenance you should document the following information about your Linux system
Hardware specs
Installed software
Configuration settings
Baseline Performance