Hi everyone, long time listener first time caller here. I've encountered a problem that I cannot find a solution for, or come up with one myself.
I recently purchased a 1,67GHz 15" PowerBook G4 (PowerBook 5,8, A1138). It had 10.4.11 already on it, but it was really bloated and had processes run on startup that would use 70% of the CPU. I've never used OS X 10.5, so I decided that I would try to get it installed. The computer however would not start from the install discs. It would recognise them and open a prompt to restart when it was running in 10.4.11, but after a restart it would show the Apple logo with the spinning circle under it, which after a while changed to a crossed out symbol. I've tried 3 different discs from Macintosh Repository burned with my MacBook Pro, and every one of them gave the same result.
This would suggest that it's the discs or the G4's drive fault, but I doubt it for two reasons:
1. The MacBook Pro which I used to burn them launched the installer from them no problem,
2. When I connected a 17" G4 to the problematic 15" G4 with FireWire and used the 15" in target disk mode, the 17" launched the installer as well - the disc was being read by the 15" G4, since my 17" can't read DL DVDs.
I then had the idea to install 10.5 through target disk mode, with the 17" G4 reading the disc from the 15" G4's drive and installing it back to its hard drive (wild, I know). This seemed to work, the system was installed and the 17" booted into it through target disk mode. When I wanted to boot the 15" into it, it unfortunately acted the same way as it does with the DVDs - Apple logo and then the crossed out one. At this point I've also lost that original 10.4.11 install it came with, since I formatted the drive.
I gave up on 10.5 and tried to install 10.4.6 from a disc I know works, since I've used it on multiple machines. This also failed, but in a slightly different way - upon booting from the DVD, the Apple logo would just stay there with the spinning circle underneath it, as if it was frozen (the animation on the circle was still going though).
As a last ditch effort, I cloned the hard drive from the 17" G4, which has 10.4.11 on it. This sort of worked - the 15" can boot from it, but the USB ports are not working. I'm not sure if they were working before all of this, or if it could even be a problem with the system and not the hardware. I have a PCMCIA USB adapter, and USB works fine through that.
I've also reset the PRAM, but this made no difference.
So, my questions is: what can be blocking this PowerBook from booting from install DVDs? Is there anything else I can try? Any tips will be greatly appreciated.
I recently purchased a 1,67GHz 15" PowerBook G4 (PowerBook 5,8, A1138). It had 10.4.11 already on it, but it was really bloated and had processes run on startup that would use 70% of the CPU. I've never used OS X 10.5, so I decided that I would try to get it installed. The computer however would not start from the install discs. It would recognise them and open a prompt to restart when it was running in 10.4.11, but after a restart it would show the Apple logo with the spinning circle under it, which after a while changed to a crossed out symbol. I've tried 3 different discs from Macintosh Repository burned with my MacBook Pro, and every one of them gave the same result.
This would suggest that it's the discs or the G4's drive fault, but I doubt it for two reasons:
1. The MacBook Pro which I used to burn them launched the installer from them no problem,
2. When I connected a 17" G4 to the problematic 15" G4 with FireWire and used the 15" in target disk mode, the 17" launched the installer as well - the disc was being read by the 15" G4, since my 17" can't read DL DVDs.
I then had the idea to install 10.5 through target disk mode, with the 17" G4 reading the disc from the 15" G4's drive and installing it back to its hard drive (wild, I know). This seemed to work, the system was installed and the 17" booted into it through target disk mode. When I wanted to boot the 15" into it, it unfortunately acted the same way as it does with the DVDs - Apple logo and then the crossed out one. At this point I've also lost that original 10.4.11 install it came with, since I formatted the drive.
I gave up on 10.5 and tried to install 10.4.6 from a disc I know works, since I've used it on multiple machines. This also failed, but in a slightly different way - upon booting from the DVD, the Apple logo would just stay there with the spinning circle underneath it, as if it was frozen (the animation on the circle was still going though).
As a last ditch effort, I cloned the hard drive from the 17" G4, which has 10.4.11 on it. This sort of worked - the 15" can boot from it, but the USB ports are not working. I'm not sure if they were working before all of this, or if it could even be a problem with the system and not the hardware. I have a PCMCIA USB adapter, and USB works fine through that.
I've also reset the PRAM, but this made no difference.
So, my questions is: what can be blocking this PowerBook from booting from install DVDs? Is there anything else I can try? Any tips will be greatly appreciated.
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