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Appendix F: Secure Boot Settings
Authorized Signatures
Authorized Signature Database (DB) contains authorized signing certificates and digital
signatures. The options are Details, Export, Update, Append, and Delete. Select Details
to display detailed information of Authorized Signatures. Select Export to save the cur-
rent DB to a FAT formatted USB flash drive. Select Update to load the factory defaults or
load DB from a file on the external device. Select Append to add variables to the exist-
ing DB. Select Delete to clear the current DB or to delete only one certificate from the
key database. (Refer to page 145 for the Export process. Refer to pages 146, 147,
148, and 149 for the Update process. Refer to pages 150 and 151 for the Append
process. Refer to page 152 for the Delete process.)
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