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Re: Protection of boot sector and embedded area

From: Vladimir 'phcoder' Serbinenko
Subject: Re: Protection of boot sector and embedded area
Date: Sun, 27 Sep 2009 00:12:11 +0200
User-agent: Mozilla-Thunderbird (X11/20090701)

James Courtier-Dutton wrote:
> I think it would be good if one could put grub into the beginning of a
> partition.
> The problem with this is that I don't know if there is room to put
> grub at the beginning of an ext3
>  or lvm partition. If it were possible, it would make grub much more
> compatible with Dual boot systems.
Some partitions like reiserfs (64K reserved for bootloader) and lvm
("unusable space") have some space where core.img can be hold but such
cases are a minority.
XFS doesn't even have space for boot sector.
ext* has only 2 sectors available. Too few.
FAT32 has ~16K reserved. Too few.
ZFS has 8K reserved. Too few.

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