Sean, I am not a regular Pharo user, so I have no code example for you. Just an idea: why not save an image copy instead of the image itself? Thus if an error occurs that might not happen at next startup (external dependencies etc.) , you could  restart the "real image" and still use the failed copies to analyse your startup problems. I guess Pharo can do a "Save image as..." ? Joachim Am 08.11.2017 03:16 schrieb "Sean P. DeNigris" <sean@clipperadams.com>:

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!

----- Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html