saving in linux
 

I’ve got a real n00b question, I’m trying to save a file in Linux, and I’m promoted with an empty box. I want to save it to mnt/sda2/filename.txt but I keep getting an error (cannot write) what should I type to make it save there?

Save a file? Is this in a specific program? It sounds like you don't have write access to your directory. What does

return? Also, maybe you made a typo in your post here, but did you remember the forward slash in front of "mnt"?

Save the file to your home directory, or desktop or something. Then open a console and move it while sudo'd to root.

For example:
sudo mv /home/filename.txt /mnt/sda2/filename.txt

that still did not work, at this point i dont really care, thanks anyways.

Is a filesystem mounted at /mnt/sda2? Does mount (by itself) show anything at /mnt/sda2?

Mounting something once doesn't necessarily mean it will be there across boots unless you asked for that, put it in your fstab, or have something running that automatically mounts available devices. Just in case you're still reading...