Re: "secret key not available". "unable to sign the tag".

> From: Linus Torvalds <torvalds@linux-foundation.org>
> Subject: Re: "secret key not available". "unable to sign the tag".
> To: "Jeff King" <peff@peff.net>
> Cc: "Gary Yang" <garyyang6@yahoo.com>, git@vger.kernel.org
> Date: Sunday, November 16, 2008, 4:16 PM
> On Fri, 14 Nov 2008, Jeff King wrote:
> > 
> > You need to tell git who you are, since it is unable
> to deduce it from
> > doing host lookups. Try:
> > 
> >   git config --global user.email garyyang6@yahoo.com
> > 
> > or whatever email address you used when you created
> the key, and then
> > gpg should find it appropriately.
> 
> Side note: sometimes you might want to use a different key
> than the one 
> you use for authorship. Then you can use
> 
> 	[user]
> 		SigningKey = key
> 
> (or "git config user.signingkey xyz" if you
> don't want to edit the 
> config file manually). 
> 
> This can be especially useful if you use different keys for
> different 
> projects, even if you want to be known under the same name
> in both. Or 
> because you want to have the local hostname in your commit
> logs, but your 
> gpg key is using some externally visible
> "official" email address.
> 
> 			Linus