A work-around: Instead of using 'addcardkey', use first 'addkey' and then 'keytocard'. This worked flawlessly for me.
Some notes: - use 1024 bit RSA (encrypt only), for the encryption key - use 1024 bit RSA (sign only), for the signature and auth keys - select the new sub key before 'keytocard' -- otherwise you'll end up putting your master key on the card -- segfault when running addcardkey for OpenPGP smartcard https://launchpad.net/bugs/78120 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs