[G4] G4 won't read OS X upgrade CDs

[Mike Lemos]

Hi robert,

Thank you for your reply and the information provided. I have actually 
tried these suggestions and the disk does show up as bootable in the 
system preferences and I select it, restart and the computer does the 
mac "chime" after which it ejects the disk. When I try holding down the 
option key the DVD does not list. I also have tried holding down the 
"C" key and the disk simply ejects although I have had one other 
occurrence when doing this and that is it starts up in OS 9 with 
desktop messages appearing that state that since I have started up from 
the DVD certain functions will not be available.
So after all this I was able to speak with tech support from the people 
I purchased the disk from and their feelings are that the DVD is a bad 
disk and they are going to replace it. (YAY!)
So we'll see once I receive the new disk if my problem is solved. If 
you would like, once I do (or if) I'll update you so that you can be 
informed as to what ended up solving this issue. Let me know.

Once again, I thank you for your help.
Best.
Mike Lemos
On Jul 21, 2007, at 12:34 PM, Robert A. Rosenberg wrote:

> At 21:14 -0700 on 07/17/2007, David Minger NPG Cable wrote about Re: 
> [G4] G4 won't read OS X upgrade CDs:
>
>> Thanks Ben, Ronald and everyone else who replied.
>>
>> Yes, the situation is that I cannot boot from the install DVD even if 
>> I restart and hold down C.
>>
>> I think I am left with swapping out drives and trying again.
>>
>> Question: (a) any online tips / procedures for swapping out the drive?
>>
>> Thanks again -- I appreciate all your thoughts and suggestions and 
>> will reread all the advice.
>
> Put the DVD in the drive after you've booted into MacOS X. Now select 
> Start Up Disk from System Preferences and see if the DVD shows up. If 
> not, then the DVD is not bootable (or you do not have a DVD Drive). If 
> it shows up then select the DVD and restart (it should now boot off 
> it). Do not worry about pointing at the DVD Drive since once it is 
> removed, the system will give the Folder with Question Mark logo and 
> then boot off your Hard Drive (Do not forget to reset the Boot Drive 
> back  to the Hard Drive or it will continue to do this until you do). 
> You can also try booting with the DVD in the drive and holding OPTION. 
> This will give you a list of bootable drives to select from (Select 
> the DVD) for THIS boot without resetting the boot drive as the System 
> Preference does.
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>
Mike Lemos
zealtime at sbcglobal.net
http://mlemos.blogspot.com/