here error message
Error detaching: helper exited with exit code 1: Detaching device /dev/sdb USB device: /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-3) SYNCHRONIZE CACHE: OK STOP UNIT: FAILED: No such file or directory
here error message
Error detaching: helper exited with exit code 1: Detaching device /dev/sdb pci0000: 00/0000: 00:1d.7/ usb1/1- 3)
USB device: /sys/devices/
SYNCHRONIZE CACHE: OK
STOP UNIT: FAILED: No such file or directory