logging in or signing up Linux101 Irvette Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 149 Category: Entertainment License: All Rights Reserved Like it (0) Dislike it (0) Added: November 02, 2007 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... By: raazendraw (16 month(s) ago) i like this ppt . plz let me download Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript 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 ManagementReferences: 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 You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Linux101 Irvette Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 149 Category: Entertainment License: All Rights Reserved Like it (0) Dislike it (0) Added: November 02, 2007 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... By: raazendraw (16 month(s) ago) i like this ppt . plz let me download Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript 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 ManagementReferences: 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