STM32 not identified

[bmelo]

Hi, I have a STM32 Nucleo board and installed stlink from ports here. But all the time I run st-util command I get the message:
WARN usb.c: Couldn't find any ST-Link/V2 devices
The Nucleo creates cuaU0 and ttyU0 in /dev. It seems like a permission problem, but I have no idea how to fix that. I already tried to edit /etc/devfs.rules and the problem persists. /dev/cuaU0 is uucp:dialer and ttyU0 is root:wheel.
Any idea?

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