Dual boot 10.4 and 10.5 on iMac G5 without working CD drive

[MrRPI]

Hi,

I have an iMac G5. It currently runs 10.5.8. But I want to also dual boot it with Tiger. I downloaded the disc images for it from http://macintoshgarden.org/apps/mac-osx-mac-os-10-ppc. I want to dual boot it with leopard. I have a few FireWire HDD's (about 60GB). I also have bought a Leopard DVD and then used my SuperDrive to burn it to USB and the booted it last time I installed Leopard.
BUT I WANT TO KEEP LEOPARD INSTALLED AND INSTALL TIGER NOW

TL;DR I have the Tiger disc images and the Leopard DVD. I also want to run Tiger.

 

[AphoticD]

Hi,

I have an iMac G5. It currently runs 10.5.8. But I want to also dual boot it with Tiger. I downloaded the disc images for it from http://macintoshgarden.org/apps/mac-osx-mac-os-10-ppc. I want to dual boot it with leopard. I have a few FireWire HDD's (about 60GB). I also have bought a Leopard DVD and then used my SuperDrive to burn it to USB and the booted it last time I installed Leopard.
BUT I WANT TO KEEP LEOPARD INSTALLED AND INSTALL TIGER NOW

TL;DR I have the Tiger disc images and the Leopard DVD. I also want to run Tiger.

Boot from your Leopard DVD and use Disk Utility to add a new partition for Tiger (min. about 10GB). This will resize your current partition without erasing your data.

Now boot from the Tiger DVD and install
onto the newly added partition.

Note that only Leopard and up can modify partitions without erasing all of your data.

Edit: use Disk Utility to Restore the Tiger Disk Image onto your Firewire or USB drives. You will need to use Open Firmware commands to boot from USB, so to keep things simple, I’d stick with Firewire.

 

[MrRPI]

I have 4 disk image files... what should I do?
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Boot from your Leopard DVD and use Disk Utility to add a new partition for Tiger (min. about 10GB). This will resize your current partition without erasing your data.

Now boot from the Tiger DVD and install
onto the newly added partition.

Note that only Leopard and up can modify partitions without erasing all of your data.

Edit: use Disk Utility to Restore the Tiger Disk Image onto your Firewire or USB drives. You will need to use Open Firmware commands to boot from USB, so to keep things simple, I’d stick with Firewire.

When I installed leopard from usb... I learned some OFW commands

 

[DeltaMac]

You have CD images, so you can burn a CD for each of those image files, 4 CDs in that installer set.
Or, go back to Macintosh Garden, and download the Tiger DVD installer image file.
That would burn to just one disc - takes a dual-layer DVD.
That DVD image also is fairly simple to use to make a bootable partition on a Firewire drive. Not sure how to do that with the 4 CD images to make that work with multiple partitions (?)

 

[MrRPI]

I can't download from MEGA because it's blocked.

 

[AphoticD]

Not sure how to do that with the 4 CD images to make that work with multiple partitions (?)

This is a good point. Can you try making 4x 700MB partitions on a Firewire HDD and then restore each disk image to a partition? You could then just reboot from the partition for “disc 1”.

I imagine this would work as it seems the OS X installers aren’t too concerned about what kind of media they are running from.

 

[DearthnVader]

I didn't have any Dual Layer DVD's, so I just Restored the Leopard DVD Image to a partition on one of my Mac's.

Now when I want to install LeopardI just put that Mac into Target Disk Mode and Boot from the Leopard DVD partition.

Should work with any OS X Installer IMG.

 

[AphoticD]

I didn't have any Dual Layer DVD's, so I just Restored the Leopard DVD Image to a partition on one of my Mac's.

Now when I want to install LeopardI just put that Mac into Target Disk Mode and Boot from the Leopard DVD partition.

Should work with any OS X Installer IMG.

I’ve had my old 3rd gen iPod, the one with four touch buttons above the touch wheel, formatted as a Leopard installation disk for the past ten years or so. It’s come to the rescue for every G4/G5 I own. I think it is a 15GB model and afaik, one of few iPods which supported both USB and Firewire.