The linux machines will mount the USB disk automatically when you plug them in. However, we need to export them so that the sga VME PowerPC can see the disk. The procedure to make make a USB disk available for data taking with the sga system is: When you are done taking data to the USB disk, you should be careful to unmount it properly in order [i] not to mess up the file system and [ii] corrupt you data. The sequence should be: You can now unplug the USB disk and take it with you.