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redhatcode29

macrumors 6502
Original poster
Jul 21, 2014
471
53
Kuala Lumpur
My power mac g4 MDD was running 10.5.8 without any issues. There are three Hdds' in total... One of those drive still has a copy of 10.3 and OS 9.

Recently.... Out of itch, i attempted to restart the g4 with 10.3, which now jus gives me a blank screen upon booting ! There is no visual in the screen.

How do i get back the 10.8.5 to be the default startup disk ?

Can i press C or Option when booting the g4 ? But i have already tried this, I only get the blank screen.

How do i gently do this to get my g4 to run 10.8 again? Can I use Disk target ? Any ideas ?

Thank you...
 
Last edited:
Easiest option would be to remove the HD with the 10.3 volume on it. That will force Open Firmware to pick another volume to boot.
 
Easiest option would be to remove the HD with the 10.3 volume on it. That will force Open Firmware to pick another volume to boot.

Dude, excellent, that is what I thought of doing, but I needed a second opinion. I'll just have to try one hdd at a time....since I am not sure which one has the 10.8.
Will update herein. Thanks.:)
 
Dude, excellent, that is what I thought of doing, but I needed a second opinion. I'll just have to try one hdd at a time....since I am not sure which one has the 10.8.
Will update herein. Thanks.:)

Make sure you continue to hold OPT. You can just unplug the ribbon cables and leave the power cables plugged in.
 
Dude, excellent, that is what I thought of doing, but I needed a second opinion. I'll just have to try one hdd at a time....since I am not sure which one has the 10.8.
Will update herein. Thanks.:)

Just as a minor suggestion-

When I install an OS on a hard drive, I take a sharpie and write on the cover exactly what's installed on it as well as information about the partitions. If it's a factory HDD, I also note which system it came out of.

If you write only on the metal parts of the drive(not the labels) you can easily clean up the markings if/when you make changes using acetone or denatured alcohol.

This can make your life a whole lot easier when diagnosing problems or trying to get a system to boot.
 
Just as a minor suggestion-

When I install an OS on a hard drive, I take a sharpie and write on the cover exactly what's installed on it as well as information about the partitions. If it's a factory HDD, I also note which system it came out of.

If you write only on the metal parts of the drive(not the labels) you can easily clean up the markings if/when you make changes using acetone or denatured alcohol.

This can make your life a whole lot easier when diagnosing problems or trying to get a system to boot.

That is a good tip! I should start doing that.
 
Just as a minor suggestion-

When I install an OS on a hard drive, I take a sharpie and write on the cover exactly what's installed on it as well as information about the partitions. If it's a factory HDD, I also note which system it came out of.

If you write only on the metal parts of the drive(not the labels) you can easily clean up the markings if/when you make changes using acetone or denatured alcohol.

This can make your life a whole lot easier when diagnosing problems or trying to get a system to boot.

True.... Nw I wish I had!

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Make sure you continue to hold OPT. You can just unplug the ribbon cables and leave the power cables plugged in.

U mean....even with one hdd at a time, I should hold the OPT key ?
 
Easiest option would be to remove the HD with the 10.3 volume on it. That will force Open Firmware to pick another volume to boot.

Gracias,

I have sucessfully managed to boot 10.5.8 and also 10.3;

But i seem to have a problem with screenshots in 10.3, i can't any screenshots when i press shift>command>3 or 4, i also checked it at the keyboard shortcuts in system preferences and there is nothing saved in the clipboard as well !

Could it be an OS issue or am i missing something..... thank you..
 
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