You need to access the Arduino via the FTDI chip's drivers, which you may need to install. I think there's another thread here with some info (near the end): http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1230895424/0
Anyway, you should get a TTY device node in /dev, something like /dev/ttyUSB0 if it's set up anything like Slackware (which works for me, BTW).
Did you download a Linux version of Arduino 0012 or a Windows version?
which appears to be the ftdi driver being loaded, but there should be some information about the board being detected. Right?
ls -l /dev/ttyUSB0crw-rw---- 1 root dialout 188, 0 Feb 28 10:59 /dev/ttyUSB0
grep dialout /etc/groupdialout:x:20sudo usermod -G dialout -a cdmillergrep dialout /etc/groupdialout:x:20:cdmiller
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