From the command-line, the commands are: echo "scsi remove-single-device host channel ID LUN " > /proc/scsi/scsi echo "scsi add-single-device host channel ID LUN " > /proc/scsi/scsi [note of maintainer : WARNING, as it is written in /usr/src/linux/drivers/scsi/scsi.c : * Consider this feature BETA. * CAUTION: This is not for hotplugging your peripherals. As * SCSI was not designed for this you could damage your * hardware ! ]