GRUB2 changes, introducing EFI

[Grzesiek]

W dniu 28.10.2012 21:42, Jacek Konieczny pisze:
> On Sun, Oct 28, 2012 at 09:27:29PM +0100, Grzesiek wrote:
>>> I guess you mean one of the options often used with legacy grub:
>>> 1. the space between MBR and the first partition
>>> 2. the unused space at the beginning of a ext[234] file system
>>>
>>> Which one? And how much space do you have there?
>> The first one, first partition starts on 32256B
>>
>> I'm using ext4 partition on lvm on one disk.
> So you cannot write grub into ext4 partition and you
> need the LVM module in the base grub image, right?
> This may be tricky, indeed.
>
>> Numer Początek Koniec Rozmiar Typ System plików Flaga
>> 1 32256B 30005821439B 30005789184B primary ntfs ładowalna
>> 2 30005821440B 999782783999B 969776962560B primary
>> 3 999782784000B 1000202273279B 419489280B primary linux-swap(v1)
>>
>> I'm trying to install grub by "grub-install /dev/sda" and it fails
>> because core.img is to big, is there any other way to install grub in
>> this configuration?
> You could try to create a dedicated /boot partition – putting it at the
> end of the disk should be doable, provided you still have some space in
> your LVM PV. In such case the lvm grub module would not be needed and
> the image would be smaller. But it is probably not a solution you are
> looking for.
>
> I am looking for a ways to make the modules smaller too…
>
> Hmm…
>
> $ file /lib/grub/i386-pc/normal.mod
> /lib/grub/i386-pc/normal.mod: ELF 32-bit LSB relocatable, Intel 80386,
> version 1 (SYSV), not stripped
>
> So there are some debug symbols there… I wonder if grub needs them… Can
> you try stripping all those modules (backup, 'strip /lib/grub/*/*.mod'),
> re-install grub (make sure the copies in /boot are also updated) and see
> if it helps?
>
> I don't feel like testing this at my machine at this moment.
>

I will try to strip modules and see if it helps, but ubuntu modules are 
smaller without stripping.