@jeremycherfas When I set up a Mac I make sure that all drives/volumes appear on the desktop and that they are sorted by name. That way, whichever is chosen as the boot-up drive appears in the top right corner of the desktop.

@JeremyCherfas When I set up a Mac I make sure that all drives/volumes appear on the desktop and that they are sorted by name. That way, whichever is chosen as the boot-up drive appears in the top right corner of the desktop.