linux-kernel - Re: Way to combine kernel and initrd on x86 platform?

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Message-ID: <4A67CD97.8000609@zytor.com>
Date:	Wed, 22 Jul 2009 19:40:23 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Subodh Nijsure <nijsure.subodh@...il.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: Way to combine kernel and initrd on x86 platform?

On 07/22/2009 02:15 PM, Subodh Nijsure wrote:
> I have been using the arch/powerpc/boot/wrapper scripts to combine
> linux and initrd.gz to create a single image for distribution.
> 
> Is there similar wrapper possible for x86 platforms also? This is my
> first week of working on x86 embedded platform.
> 
> I know of initramfs option in 2.6 kernel, however the contents of
> initrd in my case are created after the kernel is build i.e. will have
> to "patch in" the initramfs at later point in build process.

If your bootloader can support ELF, Multiboot, or NBI, you can use
Wraplinux:

	http://www.kernel.org/pub/linux/utils/boot/wraplinux/

bzImage support would be possible, but it isn't in this version (noone
has asked for it).

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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