OS 10.28 boot from firewire

[nealt]

I want to boot from an external firewire drive on an older G4 tower. I see the firewire drive fine in Startup Disk. I can select it. However when I restart I get a couple of question marks and then the computer boots of the internal drive. The external drive appears in the Finder, disk utilities etc.

I have used this external drive to boot off of with other Macs.

Any ideas?

 

[Giaguara]

Are the other Macs you have booted of that hard drive Intel or PPC based?
If I remember right the PPC based only would work on the pre-Intel Macs as OF / EFI is so different.

 

[nealt]

All the Macs are PPC based.

 

[Satcomer]

How did you get a bootable OS X on it? By cloning or by a fresh OS X install?

 

[nealt]

I used a method from a tutorial in MacFixit July 5 2007. "How to Clone the Tiger Installer DVD to a FireWire Drive" It involves using Disk Utility to make a disk image of the install disk.

I have successfully used this procedure to update other computers that do not have a DVD reader.

 

[Satcomer]

On the offending Mac disconnect all unnecessary devices and then reset your Pram (letting the "bong" happen three times). This might help, Good Luck.