Boot OS9 in Target Disk Mode on iMac G5

Hi! Wonder if any of you good people can help. I have an application which will only run on a native OS9 platform, but I would like to be able to boot OS9 off an external Firewire drive for ease of use from an iMac G5.
How can this be acheived? I have a dual boot eMac. Is it possible to use carbon copy cloner to copy this drive and install it on the external firewire HDD?
I would very much appreciate any help anyone can offer.
Many thanks,
Andrew

Hi, Andrew -
I'm looking for ways to future proof my equipment so if the eMac dies, I atleast have an alternative.
As far as I know none of the current lineup of new Macs is OS 9 bootable, and this won't change in future releases.
I'd suggest doing two things -
Check on eBay or other sources, like on-line dealers of used Macs, for an OS 9-bootable machine of adequate speed - a G4 Quicksilver or early MDD model, for example, or another early eMac. Get it, refurbish it if necessary, and keep it safe as a backup. If it's going to sit for a while, get a spare internal battery for it.
Investigate alternative software, something that will do the job and that will also run in OSX. For the long term this would be a better solution.

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