I was experimenting with GPG during the installation of Truecrypt (http://ubuntuforums.org/showthread.php?t=1970947) and had a maintenance/housekeeping question.

I created a key using:

gpg --gen-key
I later forgot my passphrase and so I wanted to start over. I figured that since I hadn't at that stage used my private key to sign anything, it should be a simple case of deleting my key and recreating it.

First question is: Is this correct?

Second question is: How do I go about deleting and recreating? Could simply remove it from my public and secret key rings and repeat the creation process using '--gen-key'?

And finally, the third question is: do I have to explicitly revoke my signature from any external servers at this early stage? I got as far as a failed attempt to sign the Truecrypt public key.

Thanks for any advice.