linux-kernel - Re: kernel cmdline: root=/dev/sdb1,/dev/sda1 "fallback"?

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Message-ID: <45AE8818.1050803@zytor.com>
Date:	Wed, 17 Jan 2007 12:33:28 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Tomasz Chmielewski <mangoo@...g.org>
CC:	Jan Engelhardt <jengelh@...ux01.gwdg.de>,
	linux-kernel@...r.kernel.org
Subject: Re: kernel cmdline: root=/dev/sdb1,/dev/sda1 "fallback"?

Tomasz Chmielewski wrote:
> 
> All right.
> I see that initramfs is attached to the kernel itself.
> 
> So it leaves me only a question: will I fit all tools into 300 kB 
> (considering I'll use uClibc and busybox)?
> 

You don't need to use busybox and have a bunch of tools.

The klibc distribution comes with "kinit", which does the equivalent to 
the kernel root-mounting code; it's in the tens of kilobytes, at least 
on x86.  If you're using ARM, you can compile it as Thumb.

	-hpa

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