[Leaplist] Grub Error 18

[Bryan J. Smith]

On Sun, 2008-03-30 at 16:20 +0600, Deepan wrote:
> Hi All,
> I have installed Fedora on Macbook. It works fine
> when I boot it in native mode. However, when I
> boot it via parallels, I get the following error.
> Error 18: Selected cylinder exceeds maximum
> supported by BIOS.  I do understand that this
> error is thrown when Grub tries to read an address
> beyond the end of BIOS translated area. Is this a
> problem with Grub or BIOS ? My boot partition is
> the first partition. 

Depends on what parallels is providing.

Intel Apple MacBooks use 32-bit EFI (Enhanced Firmware Interface) and
not PC BIOS, so if parallels is providing that as well, there can be
differences.  Especially since EFI may require the use of the GPT
(General Partition Table) disk label, and not the legacy BIOS/DOS disk
label (aka "Partition Table" with legacy "Primary" / "Extended" -
"Logical").  There are also geometry issues with some translation when
newer PC BIOS or EFI implementations use more than 0-63 (6-bit) sectors
and 0-255 (8-bit) heads.



-- 
Bryan J  Smith              Professional, Technical Annoyance
mailto:b.j.smith at ieee.org  http://www.linkedin.com/in/bjsmith
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           Fission Power:  An Inconvenient Solution