Linux101

50 %
50 %
Information about Linux101
Entertainment

Published on November 2, 2007

Author: Irvette

Source: authorstream.com

Linux Kernel 101:  Linux Kernel 101 Sriram Sundararajan Linux ::  Linux : /lee'nuhks/ or /li'nuks/, not /li:'nuhks/ n. The free Unix workalike created by Linus Torvalds and friends starting about 1991 – The Jargon File Resources , compiled by ESR et al. Why Linux? :  Why Linux? Copious Documentation Free Source Fully Customizable All you need is a 386 + 4MB Powerful Contd….:  Contd…. Great technical Support POSIX compliant And It’s a Great OS anyways Dig This:  Dig This Linux and other OSS advocates are making a progressively more credible argument that OSS software is at least as robust -- if not more -- than commercial alternatives. -- Halloween Docs. Linus on Linux :  Linus on Linux The power of Linux is as much about the community of cooperation behind it as the code itself. The Process:  The Process Ok I know that you all know what it is…. Fundamental abstraction Process/kernel model Linux Vs.*nix:  Linux Vs.*nix Monolithic Kernel Support for modules Kernel Threading Multithreaded application support Contd…:  Contd… Nonpreemptive kernel Multiprocessor Support File System STREAMS I/O On Kernels Mono and Micro… :  On Kernels Mono and Micro… Linux Solaris AIX BSD System V SCO Mach Minix …. ??? The Bootstrap:  The Bootstrap BIOS Boot Loader Floppy / Hard Disk setup( ) startup_32( ) start_kernel( ) BIOS:  BIOS Test Hardware (POST) Initialize Hardware Boot from FDD/CD/HDD Copy sector 1 to 7c00 Boot Loader:  Boot Loader Floppy bootsect.S Move to 0009 0000 Setup real mode stack from 0000 3ff4 Display “Loading…” Load setup( ) to 90200 Load rest of kernel and jump to setup( ) Hard disk MBR Move to 0009 a000 Setup real mode stack from 9b000 to 9a200 Display “Loading…” Load setup( ) to 90200 Load rest of kernel and jump to setup( ) setup( ):  setup( ) Initialize a load of Hardware devices Adjust kernel image (low to high) Reprograms PIC Switches CPU from real to protected mode Jumps to startup_32( ) startup_32( ):  startup_32( ) Actually there are two of these Initializes the segment registers and stack Fills the uninitialized data area Invokes decompress_kernel( ) Jump to 0010 0000 Contd..:  Contd.. The other startup_32( ) Init segment regs with final values Setup stack for process 0 Invokes setup_idt( ) Identifies processor model Loads GDT and IDT Jump to start_kernel( ) start_kernel( ):  start_kernel( ) Finally…. Initialize page tables Initialize page descriptors Final initialization of IDT Initialize Slab allocator Initialize system date and time Create thread for Process 1 Next…:  Next… Memory Management References:  References Understanding the Linux Kernel Linux Resource Exchange Operating Systems comparison http://www.falconweb.com/~linuxrx/WS_Linux/OS_comparison.html The Jargon File http://www.tuxedo.org/~esr/jargon/quoting.html

Add a comment

Related presentations

Related pages

Linux 101 - About.com Tech

Linux 101: A Newcomer's Guide This guides provides you with step-by-step information that you may use for the process of comparing operating systems ...
Read more

Linux 101

Moved Permanently. The document has moved here.
Read more

Linux101 - Noisebridge

An Introduction to Linux. We now offer a 101 class for anyone just getting into Linux for the first time! No Experience Necessary, nor is it expected!
Read more

Linux101 - Google Drive

009 - Kickstart Install with RAID5.avi. 10/15/14. 010 - FTP Install.avi
Read more

GitHub - tomer/linux101: Linux introduction for Operating ...

linux101 - Linux introduction for Operating Systems course ... HTTPS (recommended) Clone with Git or checkout ...
Read more

GitHub - AnandVetcha/Galileo_Linux101: This repo contains ...

Galileo_Linux101 - This repo contains scripts which will be used to establish connection to Galileo over ethernet for the first time.
Read more

Linux Shortcuts and Commands - Linux Distribution Reviews ...

Linux Shortcuts and Commands, from the Linux Newbie Administrator Guide by Peter and Stan Klimas.
Read more

Linux 101: Introduction to sudo | Linux.com

There are two ways to run administrative applications in Linux. You can either switch to the super user (root) with the su command, or you can ...
Read more

Linux 101 - Part 01: Introduction - YouTube

Linux 101 - Part 01: Introduction Source: ... Linux 101 - An Intro to Linux for Noobs by a Noob - Duration: 21:00. Alex Merced 799 views. 21:00
Read more

Linux 101 (for Dummies) - About Spare Time Labs

Contact Info 25.10.2004 / Kusti Linux 101 (for Dummies) This is a very brief introduction to Linux that I wrote to amuse myself. (Actually this is notes to ...
Read more