Results 1 to 5 of 5

Thread: Linux boot process?

  1. #1
    Join Date
    Apr 2012
    Beans
    16

    Linux boot process?

    What all has to happen when I boot up my computer to load ubuntu? Grub, kernel, x, etc? What's some good reading on the subject. Yes I'll read a 700 page manual to find out all this stuff.

  2. #2
    Join Date
    Apr 2008
    Location
    Australian in Germany
    Beans
    4,010
    Distro
    Ubuntu 10.10 Maverick Meerkat

    Re: Linux boot process?

    In short:

    The computer has some memory that tells it that it is a computer. That is generally the BIOS, or EFI. What is in there tells it where to look for the first intructions. These are generally on a hard drive, and are likely to be a boot loader. In the case of a Linux system, that might be GRUB. The boot loader provides the opportunity to choose between whatever operating systems are installed. If there is only one, it is accessed automatically. The chosen operating system is loaded, and in the process, things like the x-server are started to provide the desktop environment.

    I don't really know of any resources to tell much more than this, but the Wikipedia is a good starting point.
    http://en.wikipedia.org/wiki/Booting
    Michael

  3. #3
    Join Date
    Jul 2010
    Location
    ozarks, Arkansas, USA
    Beans
    8,884
    Distro
    Xubuntu 14.04 Trusty Tahr

    Re: Linux boot process?

    vailixi; Hi !

    Here are some links you will find of interest ....
    http://duartes.org/gustavo/blog/post...l-boot-process
    http://www.expertslogin.com/linux-ad...nux-in-detail/
    And one doesn't have a clue till one looks at upstart:
    help.ubuntu.com/community/UbuntuBootupHowto
    Happy trails to you
    THE current(cy) in Documentation:
    https://help.ubuntu.com/community/PopularPages

    Happy ubutu'n !

  4. #4
    Join Date
    Mar 2011
    Location
    19th Hole
    Beans
    1,447
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Linux boot process?

    Quote Originally Posted by vailixi View Post
    ...I'll read a 700 page manual to find out all this stuff.
    You're a braver man than I, Gunga Din.
    Newb: How far must I jump to clear the ledge halfway down?
    Guru: It's bad to jump off cliffs. Let's look at better options.
    Newb: Stop harping about "best practices" and just let me jump.


  5. #5
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
    Beans
    Hidden!
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Linux boot process?

    This is about Vista, but all the older BIOS/MBR computers boot similarly. Grub does not use PBR or partition boot sector like Windows, but syslinux and lilo boot loaders do use PBR. At end is some discussion of grub legacy, but grub2 now is different.

    Pictures here worth 1000+ words
    http://www.multibooters.co.uk/multiboot.html


    Vendor info:
    Legacy BIOS and UEFI AMI AptioMar 2012 - 20 MIn
    http://www.youtube.com/watch?v=dRMIvY7BiL4
    For info on UEFI boot install & repair - Updated Mar 2015:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •