[HM] running OS 9

[Barry Lyden]

Yours is one of the only iMac models to ever ship with 10.2.7. This was 
the first version that shipped with the new G5s, and it is quite likely 
that this version does not support changing to an OS 9 start up disk. 
Or maybe the specific model iMac's firmware prevents this. I am not 
sure how Apple controls the startup OS choice. I would check with 
Apple.

Check out the following two articles. Perhaps they answer your question.

http://docs.info.apple.com/article.html?artnum=25517
http://docs.info.apple.com/article.html?artnum=86209

It's conceivable that a different OS X version would allow you to start 
up in OS 9, but I don't really know for sure. If it's firmware driven, 
then probably not. I really have no experience with that.

HTH,
Barry



On Jan 31, 2004, at 7:59 AM, enterprise wrote:

> hi folks, wondered if anyone can help here:
>
> I've just purchased a nearly-new iMac G4/800Mhz; in most ways 
> identical to
> the other iMac I have access to, G4/700MHz, but differing in the 
> version of
> OS X it has on board; the 800MHz one sports OS X 10.2.7  and the 700MHz
> sports OS X 10.1.2.
>
> The point is that I needed a Mac that can boot in OS 9.2; the 700MHz 
> one is
> fine with that, but even though I've able to install OS 9.2 onto the 
> 800MHz
> hard drive, when I come to <Change Startup Disk>, it does not list it 
> (only
> the 10.2.7 Folder), thus I cannot boot up in OS 9 (I have tried 
> shutdown and
> restart etc).
>
> Am I doing something wrong?
>
> Is it possible that the later version of OS X (10.2.7) somehow 
> _disables_
> the use of OS 9 for booting? If so, can I just re-install the previous
> version of OS X (10.1.2) and make everything OK (OS 9-wise)?
>
> regards
>
> michaelP
>
>
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