Cloning Two OS To One External HDD

Wanting to get a bootable clone of both a G4 and G3 iBook running Panther and Tiger onto an external drive where my MacBook Pro bootable clone is located.
When I went to repartition the external HDD I discovered a formatting problem. I can format using either GUID partitioning system or Apple partitioning system but they are incompatible as far as making a start up disk goes (Apple partitioning is suitable for Power PC and GUID is for Intel and is only good for non startup disk for Tiger or later.
Does this mean I cannot put a bootable clone of Tiger or Panther on the iBooks onto the HDD formatted using GUID? How should I approach this problem?

This is possible 'joh as I find it anyway.
In Disk Utility my external drive shows Partitioned Map Scheme says Apple Partition Map.
My internal drive on the Intel iMac's Partitioned Map Scheme is GUID Partition Table.
The external disk has numerous disk partitions and was used as a backup for years before I got the Intel. It now holds bootable clones of the Intel iMac 10.5, PPC G4 10.3 one for an eMac and the other for an iBook.
I do not have any G3 hardware or clone.
Connecting this external drive by Firewire to any of my Macs (Intel or PPC) allows me to boot into the respective clone volume.
It was a while ago, but I think I repartitioned the external drive (there are 7 partitions) on the Intel, and I don't remember explicitly choosing any particular partition Map, it just set Apple Partition Map itself and I made my seven disk partitions.
Therefore, you should be OK.
All my clones are made by SuperDuper!. I have no experience of Time Machine.
The only quirk I have notice is that when booting into the 10.5 clone, it makes itself the startup volume, which has to be reset back to the iMac for the restart if you just want to hit restart and go straight to it. Whether the partition Map has any bearing on that I have no idea. For the other two PPC's their startup disks remain on the machines, which is normal.
Message was edited by: roam

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