linux-kernel - Re: [PATCH 1/2] lib: Add early cpio decoder

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Message-ID: <50612945.6050906@linux.intel.com>
Date:	Mon, 24 Sep 2012 20:47:17 -0700
From:	"H. Peter Anvin" <hpa@...ux.intel.com>
To:	Thomas Renninger <trenn@...e.de>
CC:	"H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org,
	lenb@...nel.org, robert.moore@...el.com,
	Fenghua Yu <fenghua.yu@...el.com>, initramfs@...r.kernel.org,
	bigeasy@...utronix.de, vojcek@...n.pl, eric.piel@...mplin-utc.net,
	linux-acpi@...r.kernel.org, yinghai@...nel.org
Subject: Re: [PATCH 1/2] lib: Add early cpio decoder

On 09/21/2012 05:51 AM, Thomas Renninger wrote:
> I guess I understand the first part, not sure about the "last left off" 
> bit.
> "Multiple sources" means bootloader already points to multiple sources,
> right?
> This is somewhat out of scope as this would need both, bootloader and
> kernel adjustings.
> This is about "built in" which means multiple cpios concatenated together
> and passed via bootloader as one "file" (initrd).
> At least I understand it that way.
> The only disadvantage I run into is that once the cpios are concatenated,
> I couldn't figure out an easy way how to slice them into separate
> cpio/zip archives again.

No, that's not the issue.

The issue is that there isn't just one initramfs blob, there are
(currently) *TWO*... one loaded by the bootloader and one compiled into
the kernel.

	-hpa
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