Dual Boot

[Nathan Bahn]

On Sun, Nov 28, 2010 at 6:33 PM, NoOp <glgxg at sbcglobal.net> wrote:

> On 11/28/2010 03:08 PM, Nathan Bahn wrote:
> [...]
> ...
> > I am sorry, but I know what neither a core.img nor a post-MBR gap is.
>  May I
> > trouble you for a link to some references?
>
> Maybe these will help:
>
> $ locate core.img
> /boot/grub/core.img
>
> and
>
> http://www.gnu.org/software/grub/manual/grub.html#Images
> <quote>
> On PC systems using the traditional MBR partition table format, the core
> image is usually installed in the "MBR gap" between the master boot
> record and the first partition, or sometimes it is installed in a file
> system and read directly from that. The latter is not recommended
> because GRUB needs to encode the location of all the core image sectors
> in diskboot.img, and if the file system ever moves the core image around
> (as it is entitled to do) then GRUB must be reinstalled; it also means
> that GRUB will not be able to reliably find the core image if it resides
> on a different disk than the one to which boot.img was installed.
> </quote>
>
> There can be issues is the "MBR gap" is too small, or the core.img/grub
> is too large. Sample:
> https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/423412
> [karmic alpha: grub2 core.img with mdraid & lvm too big to embed]
>



NoOp--
Thank you.
--N.B.
-- 
Please avoid sending me Word or PowerPoint attachments.
See http://www.gnu.org/philosophy/no-word-attachments.html
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