Instead of "Device is not a drive" (in the second procedure) now I've had:
«Error detaching: helper exited with exit code 1: Cannot open /dev/sdb: No such device or address»
Instead of "Device is not a drive" (in the second procedure) now I've had:
«Error detaching: helper exited with exit code 1: Cannot open /dev/sdb: No such device or address»