Comment 2 for bug 1243374

And after I click on "Erase disk", which turns out to be the thing to do, there is a period of nonsense:

Expected:
=> When you click on "Erase" it should say "Erasing..." until it's done.

Observed:
=> As soon as You click on "Erase":
- a red circle with a "!" appears on the left next to the device name, as if there was some error (but without any information about what the problem is).
- The "Erase disk" button is immediately available again.
- Under "free space" it says "0.00" (now!! )
- below it says "There's not enough space for this image" (or something like that)

So everything looks like something went wrong without knowing what.
But instead it is just erasing the disk, only that it doesn't give you the slightest clue about that. You're left wondering what's wrong.
Until it finishes and everything is ok. Then the red "!" disappears, the amount of free space equalling the total space is shown, an the "make startup disk" button is enabled.

The issue here is a terrible GUI that continuously gives you wrong or no information about what's going on.