Noob trying to SSH (Help needed)

Anyone mind helping a n00b?

I just set up my RPi (with the piratebox image, wifi, and external HD attached)...

I'm trying to SSH into it for the first time using the instructions on the website, but my terminal keeps telling me "ssh: Could not resolve hostname alarmpi: nodename nor servname provided, or not known" when I try to use the 'ssh root@alarmpi ' ... Any obvious reasons why this isn't working?

Am I supposed to have gotten/created an IP somewhere? (The instructions on the website don't mention anything about it.)

Could the external hard drive I've got connected kept it from even getting to the point of accessing the RPi?

All help appreciated.

Hi fostejam,

This message is returned because your pc doesn't know what alarmpi is (i mean what is the ip of alarmpi).
Your command should be something like that: ssh root@WWW.XXX.YYY.ZZZ
where WWW.XXX.YYY.ZZZ is the ip address of your rpi.

For instance, if you want to start a new ssh session from your pc using wifi, you have to:

[*] connect to the rpi wifi
[*] ssh root@192.168.77.1