Because I can’t find that option.
Hi, I think it’s here
That’s the amount of memory used during the build.
I’m looking for the amount of memory the box will use by default.
I could be wrong but I’m pretty sure with a basic qemu instance, memory is set on the command line at runtime, not in a specialized config. This changes if you’re using libvirt or vagrant, but you’d change the value in one of those places, not in your qemu build. So if you’re using the vagrant postprocessor, you’d set the memory in your vagrantfile_template