>> What is the communication between user space and kernel >> that transports device identities? > It doesn't change, the same symbolic names still work. But today, unless you think of devfs or so, device identities are not transported by symbolic names. They are given by device numbers. [Yes, symbolic names have a certain secondary role, e.g. in error messages, or perhaps to indicate the boot device.] Andries - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to [EMAIL PROTECTED]