I recently bought an Acer Aspire One and have been trying to get my 3 mobile broadband modem to work with it. The dongle (ZTE MF622) is seen as a mass-storage device. I've surfed the web and found a solution: http://hillj.co.uk/2008/01/31/how-to-get-online-with-three-mobile-uk-and-linux-ubuntu/ However, I can't get over a few …
Prefix your commands with 'sudo'.
So if you typed 'nano /usr/etc/filename', this time type 'sudo nano /usr/etc/filename'
You'll be asked for the password you created when you set the AA1 up in the first place. Sudo will them give you root access on a temporary basis.
For more on this, have a look at Reg Hardware's Linux for Netbook Newbies series here:
kinda vague, what version of linux are you running? are you even using linux? or a BSD variant?
What does dmesg say when you plug the thing in? does it automatically mount when plugged in?
having said all of that... if it's a root acsess problem and your using ubuntu (or something similar)then get yourself to a command line (or a "run program" type thing) and type in "gksudo gedit", you'll be asked to type in your password and then you should be able to write to /etc/udev/
ALT+F2, 'sudo nautilus' and 'run as console' should do it. Then just navigate to where you want to create the file and create it.
You'll find this of interest
The excellent Andy Stanford-Clark has written about unlocking the 3 3G dongle and getting it working on Ubuntu here:
He's a very helpful chap and I'm sure can give you any further advice you need.
(Plus the Reg should write about his twittering automated house sometime)