I would like to import my secret key from another laptop so I did :
$ gpg2 --allow-secret-key-import --import /mnt/very-secret/private/keys/my-precious.asc
gpg: key 51D5DF*********: "John Doe <john.doe@acme.com>" not changed
gpg: key 51D5DF*********: secret key imported
gpg: Total number processed: 1
gpg: unchanged: 1
gpg: secret keys read: 1
gpg: secret keys unchanged: 1
But later on I did :
$ gpg2 --list-secret-keys | grep 51D5DF
And I don't see my secret key. I don't understand why it isn't visible with the --list-secret-keys option.