Using the "disks" program found in dash (damn "pretty" program names that don't match real executable file names nor package names, so you never know what you're running), I deleted the only existing partition in a Kingston USB pendrive, leaving only unpartitioned free space on it.
Then I run Startup Disk Creator, and I'm presented with the window you can see in the screenshot.
The information which is displayed is nonsense.
- There is an "Erase disk" button, but the disk is empty and there's nothing to erase. If an existing partition is needed, then it should read something like "format disk", or "create partition", not "erase disk".
- Nothing is shown under "free space". Either there is or there isn't free space, if there isn't, it should say "0 bytes".
- The "make startup disk" button is greyed out. That doesn't make sense, unless a message would be included explaining why the startup disk cannot be crated and what action is required first.
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.