Re: 2048 byte sector size ?

[Jordan Uggla]

On Feb 29, 2012 1:16 PM, "Mohammad Badie Zadegan" <address@hidden> wrote:
>
> Hi,
> Can Anyone install GRUB on memories with 2048 byte sector size ?

First it should be clarified that even though many drives have a
physical sector size which is not 512 bytes, very few drives actually
present a logical sector size larger than that. If your drive only
uses a 2048  byte sector size internally then you should have no
compatibility problems with grub or any other software/firmware.

If in fact your drive presents a 2048 byte logical sector size then if
I recall correctly grub itself should theoretically be able to handle
it, but this code path is not well tested. The reason it's not well
tested is that most *firmware* (i.e. your BIOS) will not be able to
handle such drives at all, which means that grub's boot sector won't
even be able to be loaded by your firmware from this drive. Grub does
have native disk drivers which might be able to handle your drive, but
in that case at least grub's boot sector and core.img would need to be
on a drive which your firmware does support.

Please try to install and boot grub on such a drive and report your
results. I and others (grub developers) would be very interested to
hear what works and what doesn't with regard to grub's utilities
(grub-install, grub-mkconfig, etc), your firmware, and grub as a
bootloader (with or without native drivers).

--
Jordan Uggla (Jordan_U on irc.freenode.net)