Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Can I boot from an external HDD on a G5 Power PC?
- Thread starter SpeQ
- Start date
- Sort by reaction score
You will need to restore the disk image to the drive itself (or clone it) so that the disk is bootable.
Does that have to be done on the G5?
I tried it on my M1 mini and it said 'restore failed' almost immediately. Maybe I did it wrong. I erased the disk, and formatted it HFS+. Then I chose restore, selected the .iso file from my downloads folder as the image, clicked 'restore' and got the 'failed' message.
It would need to be formatted in Apple Partition Map to be bootable from the PowerMac anyway IIRC. I do not know if Big Sur has this option anymore. You have to mount the image to restore from it.
Do you have any ability to run a VM?
Maybe use the ISO to install a VM and then once it's up and running use Disk Utility from that to format the drive as APM and then restore the iso to the drive.
I've never done this so just speculating.
Yeah, not an option in Big Sur, so I'll have to format on the G5... but then it won't be recognized on the mini after that, right? I mean, I wouldn't be able to bring the drive back to the mini to do the restore.
The M1 should be able to read the drive fine, as long as it's still Mac OS Extended with APM partition map.
Disk Utility's GUI restore function has been neutered on machines with System Integrity Protection enabled. You'll have to do it through the terminal. First do a fresh reformat with APM and HFS+, then mount your ISO image and perform this command in the command-line:
sudo asr restore -source /Volumes/Mac\ OS\ X\ Install\ DVD -target /Volumes/MyVolume -erase -noverifyObviously the path to your source and target should be renamed to what it actually is.
I never saw any option to chose Apple Partition Map. After partitioning, when I selected each partition and clicked on 'info' in Disk Utility, under 'IO content' it said Apple HFS. When I clicked on the Macintosh HD and clicked on 'info', under IO content it said Apple_Partition_Scheme
Nothing is obvious with me. haha. I have very little experience with Terminal. I named the partition 'installer', so would that make it:
Code:
sudo asr restore -source /Volumes/Mac\ OS\ X\ Install\ DVD -target /Volumes/installer -erase -noverifyDoesn't really make a difference, but you can remove the extra space.
Not working. I chose the 10.5 Install drive as the startup disk and restarted and it restarted back to login screen. Went back in sys prefs to make sure it was still chosen, and it was. Restarted again. Same results. Opened Disk Utility and under info it says it's bootable.
???
???
Can you select the drive in the boot menu when holding down option at startup?
Hmm... does Panther's Disk Utility show the drive with Apple Partition Map? Otherwise, I would just use a USB flash drive.