it looks like I had found a little Bug.
Firmware: Current Version: 1.28.0000 MIPSR2-130 K26AC USB AIO-64K
When I'am using the Tor Option where is an Message in the log:
Jan 1 01:00:14 Vulcano daemon.warn Tor: Fixing permissions on directory /tmp/tor Jan 1 01:00:15 Vulcano daemon.err Tor: /dev/null can't be opened. Exiting.
and Tor dosen't work.
chmod 777 /dev/null
Fixes the Problem until the next reboot.
I tryed to fix it in NVRAM, but I not able to do this.
nvram setfile2nvram /dev/null nvram commit reboot
does not work.