Since kernel v4.5, the correct parameter to disable USB subsystem initialization is "usbcore.nousb" always (instead of "nousb" in case the subsystem is built-in). This was changed by commit 097a9ea0e48 ("usb: make "nousb" a clear module parameter").
We need to take this into account in kdump-tools, or else we may boot with USB in kdump even the command-line saying the opposite.
Since kernel v4.5, the correct parameter to disable USB subsystem initialization is "usbcore.nousb" always (instead of "nousb" in case the subsystem is built-in). This was changed by commit 097a9ea0e48 ("usb: make "nousb" a clear module parameter").
We need to take this into account in kdump-tools, or else we may boot with USB in kdump even the command-line saying the opposite.