On Mon, 8 Nov 2004, L Rotger wrote:

> Hi,
> 
> I have a USB external case that works ok under a stock 2.4.27 with a Ali 
> PCI card (EHCI+OHCI). However I cannot make it "forget" the 
> characteristics of the hard disk. If I attach another hard disk 
> (different capacity, therefore different partition table) and reconnect 
> the USB case, it recognizes only the case and insists the HD inside is 
> the first one. How can I make it forget it (ie. delete 
> /proc/scsi/usb-storage-0, but I cannot delete it). What do I do? the 
> only procedure that works so far is rebooting the computer?

As Stephen Gowdy mentioned, you can try removing the usb-storage driver.


On Mon, 8 Nov 2004, jong jong wrote:

> Well, currently I configured it as part of kernel
> instead of module..... :-(
>
> But anyway, if on an embedded device, there are only
> limited device nodes, how to tell the kernel to
> release the device node when a usb storage device is
> disconnected?  Obviously in kernel, usb driver knows
> when a specific device is unplugged and scsi driver
> knows a sd unit is detached, so is there any way we
> can release the specific device node and reuse it next
> time?

Read section 4.3.1 of the SCSI-Programming-HOWTO.  It explains the 
"remove-single-device" command.

Alan Stern



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