ubuntu hwraid apt Sources

1. Source: deb http://hwraid.le-vert.net/ubuntu Precise main
2. 问题：
   W: GPG error: http://hwraid.le-vert.net/ubuntu precise Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6005210E23B3D3B4
3. Solve:
   wget -O - http://hwraid.le-vert.net/debian/hwraid.le-vert.net.gpg.key | sudo APT the Add-Key -