Chapter 4: BIOS
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OsRecovery Signature (dbr)
This item uploads and installs an OSRecovery Signature. Use this feature to export
NVRAM content of secure boot variables to files in a root folder on a file system device.
The file formats accepted are:
1) Public Key Certificate
a. EFI Signature List
b. EFI CERT X509 (DER Encoded)
c. EFI CERT RSA2048 (bin)
d. EFI SERT SHA256 (bin)
2) Authenticated UEFI Variable
3) EFI PE/COFF Image (SHA256)
MS UEFI CA Key
The options include Enabled,
Disabled
, and Disabled after BIOS.