Booting and installing OSX from Firewire drive

jpl88

macrumors newbie
Original poster
Jun 25, 2007
15
0
Hi all,
superdrive on my imac g5 refuses to boot from a DVD which is problematic as I'm trying to re-install OSX. The drive attempts to access the disk and then the fans turn in full blast mode and nothing happens. I tried the dvd on my ibook and it works fine.
I read on the forums that it is possible to boot from a firewire drive but would it be possible to install OSX from a firewire DVD drive. does anyone know?
any help will be much appreciated!
 

iBookG4user

macrumors 604
Jun 27, 2006
6,596
2
Seattle, WA
Before you start trying to boot from a FireWire drive, have you tried putting in the install disc and holding down "option" after the startup sound? That tells the Mac to look for all bootable devices. You might be able to get the Mac to boot off the install disc that way.
 

Moof1904

macrumors 65816
May 20, 2004
1,041
43
You could connect the two macs using firewire with the problem mac in target disk mode and install the OS using the drive from the ibook.
 

yippy

macrumors 68020
Mar 14, 2004
2,087
3
Chicago, IL
It should be, in fact, you might even be able to use your iBook as that DVD drive if you don't have one. To do this:

Put the install CD in the iBook.
Restart your iBook holding down the "T" key. You should get a firewire symbol floating around on your screen.
Connect your iBook and iMac together with a firewire cable.
Restart the iMac holding down the "Option" key. After a while you should get A list of icons showing the bootable drives connected to the iMac.
If this works you should get the OSX install CD in the list. If so, click on it, click on the arrow to the right and you should be good to go.

If this doesn't work you can use a normal external firewire DVD drive if you can get your hands on one as I am positive that they work.
 

Sherman Homan

macrumors 6502
Oct 27, 2006
463
0
Is it possible that the install disk is for the iBook, not the G5? What version Mac OS? What color is the install disk?
 

jpl88

macrumors newbie
Original poster
Jun 25, 2007
15
0
Is it possible that the install disk is for the iBook, not the G5? What version Mac OS? What color is the install disk?
Thanks for the quick replies everyone.

The disk is an original retail disk so should be compatible (it's black). It think it's just my superdrive that's messed up. It plays DVDs and CDs fine under OS, but burning and booting doesn't work.
 

Sherman Homan

macrumors 6502
Oct 27, 2006
463
0
Yup, the black disk should work. You are probably right, the superdrive could be wounded. It doesn't burn?
 

jpl88

macrumors newbie
Original poster
Jun 25, 2007
15
0
Yup, the black disk should work. You are probably right, the superdrive could be wounded. It doesn't burn?
it crashes during any burn operation, although when I take out the cdr/dvdr it shows that some of the surface was burnt
when I try and boot from the superdrive, the drive accesses the dvd and then stops. Then the imac heats up big time and the fans turn on full blast.
however playback is not affected once under osx.
I don't suppose replacing the drive itself is a good option? I have the iMac G5 with isight which I opened up to change the hard drive, and access to the optical drive seemed very difficult.
 

Sherman Homan

macrumors 6502
Oct 27, 2006
463
0
Sounds like the SuperDrive is dying. For the money and the convenience you might want to look at an external Firewire SuperDrive.
 

jpl88

macrumors newbie
Original poster
Jun 25, 2007
15
0
I've just tried yippy's idea and linked my macbook to my imac, rebooted the imac and the macbook in firewire mode. Now imac did get access to the dvd in the macbook, and everything seemed alright at first, but 5 minutes later I had a "forbidden" symbol displayed on the imac.
Again fans working full blast on the imac (coughed up a nice amount of dust as well!)
I am now wondering if connecting a firewire dvd to the imac will work any better. Any opinions?
 

jpl88

macrumors newbie
Original poster
Jun 25, 2007
15
0
Confusion here, do you have an iBook (PPC chip) or a MacBook (Intel chip)?
Sorry for the confusion - I only have a Macbook now (I've auctioned away my old iBook). My iMac G5 is the only Power PC machine I have now.
 

Sherman Homan

macrumors 6502
Oct 27, 2006
463
0
You can't run the OS X installer for a PPC Mac like your G5 out of Target mode on an Intel chipped Mac. Can't be done! Either the MacBook won't start with the PPC installer disk; or the Intel installer won't work on the G5.
 

jpl88

macrumors newbie
Original poster
Jun 25, 2007
15
0
You can't run the OS X installer for a PPC Mac like your G5 out of Target mode on an Intel chipped Mac. Can't be done! Either the MacBook won't start with the PPC installer disk; or the Intel installer won't work on the G5.
Thanks for your help Sherman. I naively thought that the iMac was just accessing the Macbook's drive like a firewire drive...
 

rookiemac

macrumors newbie
Aug 2, 2007
9
0
does that mean if i have the os x , and a imac and macbook (both intel processors), i can use themac book to boot the imac? cause i installed some driver into my imac and now everytime i boot up it tells me to reboot, so i need to somehow erase eveyrthing on that sucker and reinstall os x