Anonymous
Ok,
Then I installed it with the Linux USB creator.
As you Can see here in attachement it still does not allow me to select (inverse video mode in blue bacground) the USB as destination for the persistent_all. You Can see now this USB partition does display 0 as Free Space but well ? as Free Space. And this partition as previously dos not have its own number to ne selected. The number 1) include both partitions. I means thé HDD on the computer and the USB partition except this last is considered as unselectable due to its inversed video color.
Then how could I ne sure it will use my USB as default destination of the persistant updates ?
Thank you.