Kernel start code

Kernel start code

[Sri Ram Vemulpali]

Hi all,

  Can anyone, please help me on pointing to kernel boot code after
grubs loads the kernel and transfers control to it.
  I want in which files this resides, location. Any explanation on the
code or any link would be helpful to me.
  I know this is kind of lousy question, but entry.S is where I looked
at. It is overwhelming for me where to start in that file.
  Thanks in advance.

-- 
Regards,
Sri.

Re: Kernel start code

[Pavan Kandepet]

Embedded Linux primer has a good introduction to
kernel bootup (chapter 5, kernel initialization). You can
try that.
Regards,
Pavan


On Wed, Oct 6, 2010 at 3:58 PM, Sri Ram Vemulpali
<sri.ram.gmu06@gmail.com> wrote:
> Hi all,
>
>  Can anyone, please help me on pointing to kernel boot code after
> grubs loads the kernel and transfers control to it.
>  I want in which files this resides, location. Any explanation on the
> code or any link would be helpful to me.
>  I know this is kind of lousy question, but entry.S is where I looked
> at. It is overwhelming for me where to start in that file.
>  Thanks in advance.
>
> --
> Regards,
> Sri.
>
> --
> To unsubscribe from this list: send an email with
> "unsubscribe kernelnewbies" to ecartis@nl.linux.org
> Please read the FAQ at http://kernelnewbies.org/FAQ
>
>
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Re: Kernel start code

[Hemanth Kumar]

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Hi

      This may help you pretty old,
http://tldp.org/HOWTO/Linux-i386-Boot-Code-HOWTO/




--- On Thu, 7/10/10, Pavan Kandepet <pavankp@gmail.com> wrote:

From: Pavan Kandepet <pavankp@gmail.com>
Subject: Re: Kernel start code
To: "Sri Ram Vemulpali" <sri.ram.gmu06@gmail.com>
Cc: "Kernel-newbies" <kernelnewbies@nl.linux.org>, "Linux-rt-users" <linux-rt-users@vger.kernel.org>
Date: Thursday, 7 October, 2010, 4:49 AM

Embedded Linux primer has a good introduction to
kernel bootup (chapter 5, kernel initialization). You can
try that.
Regards,
Pavan


On Wed, Oct 6, 2010 at 3:58 PM, Sri Ram Vemulpali
<sri.ram.gmu06@gmail.com> wrote:
> Hi all,
>
>  Can anyone, please help me on pointing to kernel boot code after
> grubs loads the kernel and transfers control to it.
>  I want in which files this resides, location. Any explanation on the
> code or any link would be helpful to me.
>  I know this is kind of lousy question, but entry.S is where I looked
> at. It is overwhelming for me where to start in that file.
>  Thanks in advance.
>
> --
> Regards,
> Sri.
>
> --
> To unsubscribe from this list: send an email with
> "unsubscribe kernelnewbies" to ecartis@nl.linux.org
> Please read the FAQ at http://kernelnewbies.org/FAQ
>
>

--
To unsubscribe from this list: send an email with
"unsubscribe kernelnewbies" to ecartis@nl.linux.org
Please read the FAQ at http://kernelnewbies.org/FAQ




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Re: Kernel start code

[Michal Sojka]

On Wed, 06 Oct 2010, Sri Ram Vemulpali wrote:
> Hi all,
> 
>   Can anyone, please help me on pointing to kernel boot code after
> grubs loads the kernel and transfers control to it.
>   I want in which files this resides, location. Any explanation on the
> code or any link would be helpful to me.
>   I know this is kind of lousy question, but entry.S is where I looked
> at. It is overwhelming for me where to start in that file.

Hi,

I'guess you are interested in x86 architecture. The boot code of x86 is
the most complex one. Look at Documentation/x86/boot.txt. You can see
what the kernel does during early boot by running it under qemu and
attaching a debuger.

-Michal