On Thu, Mar 10, 2005 at 09:19:51PM -0700, Kevin Kempter wrote: > Hi all; > > I have 2 devices that I use often. > > 1. a 1Gig memory stick via a usb emory stick reader > 2. a 40Gig Firelight USB2 exterenal hard drive > > both devices are immediately recognized and have no problems with usage. > However much of the time I cannot unmount the device. I get a message > that says the device is busy. I have no windows open which are "in" the > device directory. > umount with lazy option some time get rid of this problem. umount -l /media/usbdisk to list all open file for a device /usr/sbin/lsof /media/usbdisk