Comment 27 for bug 116996

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José Tomás Atria (jtatria) wrote : Re: sata disk in ide mode with kernel 2.6.20-16-generic (ata_piix broken?)

oh, and about the grub consequences:

i don't think they are a problem, as grub uses a completely different way of referencing disks, (hd0,0) and the like... as far as i know, grub does not make any difference betwen hd* or sd*, and i would think that if those references got messed up, it would be impossible to pass beyond grub stage1. I think no one has had that problem, everything seems to be related to the kernel load process, grub work just fine, independently of how the kernel chooses to call its drives, and of course, independently of how it chooses to communicate with them, as it gets its disk information form the BIOS, long before the kernel exists.

As a matter of fact... what are the references in /boot/grub/device.map for? grub does not need them, right? who reads those?