In a headless image, I'd like to do the following: if there's any error,
arrange to have a debugger open on the next (headful) launch, and then save
and quit. 

I'm drawing a blank - how would I do that? 

I explored various dead ends, the culmination of which was the
image-breaking:
actualWorkBlock on: Error do: [ [ Smalltalk snapshot: true andQuit: true ]
fork. Halt now ]

Thanks!



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Cheers,
Sean
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