On Sun, 7 Nov 2004, Benjamin Herrenschmidt wrote: > Ok. On a totally separate issue, aren't there some kind of unique IDs or > serial number on mass storage to avoid just that ? I know ieee1394 does, > though I don't think linux can deal with that properly (MacOS can > afaik). Sometimes there are, and the 2.4 version of usb-storage attempts to use them to keep track of devices when they are disconnected and reconnected. During the 2.5 development cycle Linus came down hard and said this was absolutely the wrong thing to do. Ever since then usb-storage ignores UIDs and serial numbers. Of course, the higher layers are still free to use things like filesystem labels... Alan Stern
