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17.4.3 append_add_db_cert

Command: append_add_db_cert <X509_certificate> ¶

Read an X.509 certificate from the file X509_certificate and add it to GRUB’s internal db list of trusted certificates. These certificates are used to validate appended signatures when the environment variable check_appended_signatures (see check_appended_signatures) is set to yes or the append_verify (see append_verify) command is executed from the GRUB console.

See Using appended signatures in GRUB for more information.