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torsten-online/yubikey_sshkey_sign_device_not_found.md

Last active September 17, 2025 09:19
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Problem: error: process_sign_request2: sshkey_sign: device not found
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yubikey_sshkey_sign_device_not_found.md

Problem: error: process_sign_request2: sshkey_sign: device not found

You are using two yubikeys e.g. one OTP Key and a Yubikey BIO with FIDO and want to login over SSH?

This Problem "error: process_sign_request2: sshkey_sign: device not found" occurs by running ssh-askpass for prompting to "touch-required / Fingerprint".

Please plug out the other OTP Yubikey and then the Yubikey BIO with FIDO Auth is working fine for you!

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