Hi Marcel,

On 5/10/22 09:15, Marcel Taeumel wrote:
>>  Out of curiosity, what do you mean by checkpoint?
> 
> Post-scripts are only executed when they changed. Just like class-side #initialize. So, each time you change a post-script, make sure to update the "update map" with a list of coherent package versions, including that updated post-script. Then you can make sure that while updating the image that changed post-script is recognized as such and executed.
> 
> That's why you can safely delete all the contents of a prior post-script if you want to write a new one. It's contents have most likely been executed already during the update process.

Ahh!  Did not know that.  Thank you for the lesson.