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Re: Retriving info from stage 1 and 2

From: Alessandro MACUZ
Subject: Re: Retriving info from stage 1 and 2
Date: Fri, 28 Jun 2013 22:55:23 +0200

I remember there was that tool

2013/6/28 Andrey Borzenkov <address@hidden>
В Fri, 28 Jun 2013 18:32:36 +0200
Alessandro MACUZ <address@hidden> пишет:

> Hi all,
> I sought the Internet and the grub mailing lists for such an answer but I
> couldn't find it.
> I'd like to know which tool to use to extract info from the first 440 bytes
> in the 1st sector and then code in the following 62 sectors (speaking of a
> MBR-structured disk).

bootinfoscript may be a starting point.

Thanks Andrey,

I know it and after seeing that I wondered if there was something simpler...
With bootinfoscript you really need to dig the two stages... I would avoid to read bootinfoscript to understand how they are structured.

One of the end goals, beyond those I have already mentioned, is to understand how grub can boot from a LVM logival volume.

I guess the code in the 32kbytes has the capablity to speak LVM, am I right?

Is there at lest a document that explains how that code of the 2nd stage is structured? Or the only reference is to dig the grub code?


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