Re: How many sectors for GRUB 2

[Ulf Zibis]

Am 03.11.2012 18:05, schrieb Andrey Borzenkov:
> core.img is the part that is installed in MBR gap, but it does not mean
> that it was this particular file. grub-install creates core.img
> in /boot/grub and embeds it in the same run, but it is also possible to
> directly use
>
> grub-mkimage -o /tmp/foo.img ...
> grub-bios-setup -c /tmp/foo.img ...
>
> You wanted to be absolutely safe and sure. The only way to be is to
> reinstall grub using grub-install.

You mean, after I would have shrinked th MBR gap?
That's the problem!
What will happen, if the gap is too small?
For that reason I *before* wanted to know how much space is needed.

> > Hopefully some developers are reading this thread. Maybe they could
> > implement a new option, reporting GRUB 2's size in the MBR gap.

I'm thinking of a command like "grub-info", which should output such 
information.

> Did you try any of script I mentioned? If they did not work we need to
> fix them.

I tried:
your bootinfoscript
--> bootinfoscript.txt
your findgrub
--> findgrub.txt
Ubuntu's boot_info_script from Ubuntu Software Center
--> RESULTS.txt

As you can see in the attachment, none of these provided the size of the used 
bytes in MBR gap :-(

-Ulf

findgrub.txt
Description: Text document

RESULTS.txt
Description: Text document

bootinfoscript.txt
Description: Text document