I have multiple Yubikeys carrying the same GPG secret key. I want to switch from one Yubikey to anohter one on my laptop. The two obviously have different serial numbers.

After switching the keys when I try to decrypt something (e.g. with pass), I get a popup:

Please insert card with serial number XXXXXXXXXX

(This is with GnuPG version 2.2.17.)

How can I get rid of the popup, telling gpg to ignore whatever the serial number of the smart card is that I used so far, and instead to look for whatever card has the private key that I'm trying to use?



Delete the keygrips of the keys in question from ~/.gnupg/private-keys-v1.d.

You can list the keygrip IDs using gpg --list-secret-keys --with-keygrip.

If all your private keys are on external cards like the Yubikey, you can delete them all using:

rm -r ~/.gnupg/private-keys-v1.d

See here for more information about the private-keys-v1.d directory.

After the deletion of the keygrips, it seems beneficial to run

gpgconf --kill gpg-agent
gpg --card-status

to restart the gpg-agent and reload the card info.

Extra info: What happens when you don't restart/reload (for people who search for these error messages)

If you do only gpgconf --kill gpg-agent, the next decryption may show

gpg: decryption failed: No secret key

Reloading the card info fixes that.

If you do only gpg --card-edit, the next decryption may show

gpg: OpenPGP card not available: No such file or directory

Restarting the agent before that fixes that.

Personally I consider that a bad user experience, ideally GPG would automatically figure that out, but I don't know any technical details about it.

  • Thanks, this helped me a lot. – Noxeus Jan 17 '20 at 10:15
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    I found out after you delete the private key directory, you only need to run gpg --card-status and everything will work. – zackify Feb 11 '20 at 19:42
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    It looks like this will be fixed a future version of gnupg: dev.gnupg.org/T1983 – totaam Jan 14 at 5:44

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