Unlikely, I've replaced entire disks before and it hasn't changed my
display. From watching Tiger boot, there's some kind of key in /chosen
that identifies the desired boot disk partition by something resembling a
GUID. I'd be more inclined to believe that it's stored in nvram/pram
somewhere, as zapping your pram typically does revert the display to
640x480 until MacOS is booted.

On Sat, 30 Apr 2005, Makoto Fujiwara wrote:

> I have been wondering the mechanism of default display size
> for G2 Macs for a long time.
>
> My impression is that the value is stored on disk.
>
> Somewhere in one of following etc.
>
>  1: Apple_partition_map Apple                 63 @ 1
>  2:      Apple_Driver43*Macintosh             54 @ 64
>  3:      Apple_Driver43*Macintosh             74 @ 118
>  4:    Apple_Driver_ATA*Macintosh             54 @ 192
>  5:    Apple_Driver_ATA*Macintosh             74 @ 246
>  6:      Apple_FWDriver Macintosh            200 @ 320
>  7:  Apple_Driver_IOKit Macintosh            512 @ 520
>  8:       Apple_Patches Patch Partition      512 @ 1032
>
> If I wiped out those stuff while installing NetBSD,
> the information is gone.
>
> If you set disaplay size in MacOS 8 or 9, and then
> installing NetBSD in the manner that some info in above
> is preserved, the display size stays what you set in Mac OS.
>
> Am I wrong ?
> ---
> Makoto Fujiwara,
> Chiba, Japan, Narita Airport and Disneyland prefecture.
>
> !DSPAM:42731e99222381359520632!
>

-- 
The nice thing about Windows is - It does not just crash, it displays a
dialog box and lets you press 'OK' first.
						-- Arno Schaefer