140 likes | 272 Views
Section 1: Linux Basics and SLES9 Installation. Objective 1 The History of Linux. The Historical Development of UNIX. Most computers at the end of the 1960's were designed for batch jobs Batch processing was highly inefficient
E N D
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
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
The Historical Development of UNIX (3) • All Modern Unix System are either considered System V or BSD
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
The Development of Linux (2) • Supported hardware platforms • i386: 32bit • Intel/A MD • PowerPC • SPARC (Sun) • IBM pSeries • IBM zSeries • Embedded
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)
Objective 4 Perform Simple Installation of SLES 9 • Pre-Installation Requirements and Guidelines • Installation Options • Basic Installation • Manual Software Selection • Configuration
Objective 5 Documentation, Installation and Baseline System Performance • Document Installations and Maintenance • Document Configuration Changes • Document System Baseline Performance
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
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
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