Errors from gnome-boxes are fairly useless
@ebassi
Submitted by Emmanuele Bassi Link to original bug (#748043)
Description
I understand the need to not overwhelm the user with error messages that may be very much too obscure, but I fully expect people using a virtual machine image to be at least moderately aware of what error messages are.
Current, when Boxes fails to run a VM, it shows a deeply unhelpful error message that is the equivalent of: "You wanted to run this VM? Well, tough". This is vaguely patronizing, and wholly unhelpful to diagnose the issue.
Yes, I know: look in the journal. Troubleshooting issues should not require me to physically wrestle control of somebody else's machine, launch the terminal, and go through the logs generated by gnome-boxes. It shouldn't even require me from doing that. This is not GNOME Music: this is Boxes. While not a full on power tool, it's still something that requires a bit of knowledge.
I think that progressive disclosure of the error message, with the ability to copy it to the clipboard for reporting it, would be majorly helpful. At least, more helpful than just "Failed to start ${machine_name}".