linux-kernel - Re: Question about the vmlinuz file

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Message-ID: <4D697881.4050409@ece.ntua.gr>
Date:	Sun, 27 Feb 2011 00:02:41 +0200
From:	Stratos Psomadakis <psomas@....ntua.gr>
To:	Alvaro Aguilera <alvaro.aguilera@...lbox.tu-dresden.de>
CC:	linux-kernel@...r.kernel.org
Subject: Re: Question about the vmlinuz file

On 02/26/2011 02:25 PM, Alvaro Aguilera wrote:
> Hello,
>
> perhaps someone here has a couple of minutes to explain me the
> difference between these two vmlinuz files from different
> distributions:
>
> $file /boot/vmlinuz
> /boot/vmlinuz-2.6.37-40-desktop: Linux/x86 Kernel, Setup Version
> 0x20a, bzImage, Version 2.6.37, Version 2.6.37-40, RO-rootFS, root_dev
> 0x301, swap_dev 0x4, Normal VGA
>
> $file /boot/vmlinuz
> vmlinuz: ELF 64-bit LSB shared object, AMD x86-64, version 1, stripped
>
> the second file seems to be in ELF format and I cannot use it with my
> cluster management software.
>
> Is there a parameter I can use to compile the kernel image in one
> format or the other? or a tool to convert them?
>
> I couldn't find any hint on Google, nor I really know what exactly to look for.
>
> Thanks for any help.
> Alvaro.
> --
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> Please read the FAQ at  http://www.tux.org/lkml
http://en.wikipedia.org/wiki/Vmlinux

You can find lots of info by googling vmlinux or bzImage.

Afaik, the first is a bzImage, ie a compressed and stripped down version
of the vmlinux executable(which is the second one).

-- 
Stratos Psomadakis
<psomas@....ntua.gr>

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