From: Rajendra <rajendra_mishra@solidcore.com>
To: Rajat Jain <rajat.noida.india@gmail.com>
Cc: newbie <linux-newbie@vger.kernel.org>,
Kernel Newbies <kernelnewbies@nl.linux.org>
Subject: Re: How does boot loader tell the kernel, the location of initrd?
Date: Thu, 15 Mar 2007 13:56:25 +0530 [thread overview]
Message-ID: <45F90331.4060107@solidcore.com> (raw)
In-Reply-To: <b115cb5f0703142358j6a422262qe1ad1c6cfcfcdd22@mail.gmail.com>
Every bootloader has different mechanism for loading the kernel
image. I am talking of Grub boot loader here. Grub uses something
called a multiboot specification. The specification documents the
mechanism for passing data to and from the kernel image.
Search for multiboot specification and i think u will get all ur answers.
U can also look at arch/i386/boot/bootsect.S for the linux kernel
multiboot header related info.
regards,
~rpm
Rajat Jain wrote:
> Hi,
>
> I am experimenting with initrd and my initrd fails to mount. My
> bootloader (U-BOOT) coorectly loads the initrd into RAM as I can see.
>
> I am wondering how does the kernel get to know the address at which
> the initrd is loaded by boot loader? How does the boot loader
> communicate this to the kernel?
>
> Any code references will be appreciated.
>
> Thanks,
>
> Rajat
>
> PS: I am not using initramfs (emebedding root filesystem into kernel
> image).
> -
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next prev parent reply other threads:[~2007-03-15 8:26 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-15 6:58 How does boot loader tell the kernel, the location of initrd? Rajat Jain
2007-03-15 8:26 ` Rajendra [this message]
[not found] ` <20070315161718.GB16545@ba.sec>
2007-03-16 5:12 ` Rajat Jain
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