UPD:
my problem solved
my mistake was that i created root folder on the usb before i create container itself
turned out that in Winbox, when i set root dir for container that dir should not exist on the usb, mikrotik will create it automatically
UPD:
my problem solved
my mistake was that i created root folder on the usb before i create container itself
turned out that in Winbox, when i set root dir for container that dir should not exist on the usb, mikrotik will create it automatically