Unable to boot on DRM firmware ISO on R760

UEFI0073

Message

Unable to boot arg1 because of the Secure Boot policy.

Arguments

• arg1 = Boot Option name

Detailed Description

When the Secure Boot feature is enabled, the system BIOS authenticates each boot option against the Secure Boot policy. If a boot option does not meet the policy criteria, the system BIOS does not boot to the boot option and displays this message. The Secure Boot policy consists of authorized and unauthorized X.509 certificates; signed boot images must chain to an authorized certificate. The policy may also authorize hash values of individual boot images. Users can configure the Secure Boot feature and the Secure Boot policy in System Setup > System BIOS > Security Settings page.

 

Recommended Response Action

If the Secure Boot feature is not desired, disable it in System Setup > System BIOS > Security Settings page. Otherwise, do the following: 1) review the Secure Boot Policy Summary in F2 System Setup > System BIOS > Security Settings page. The boot option must be authorized by a public key or hash value in the Authorized Signature Database. 2) If the boot option is not authorized but it can be trusted, enter System Setup > System BIOS > Security Settings page, set Secure Boot Policy to Custom, and add a entry for the boot option in the Authorized Signature Database (System Setup > System BIOS > Security Settings > Custom Policy Settings > Authorized Signature Database > Import Database Entry).

Hi, 

The ISO was generated by a DELL tool, why do I have to modify the secureboot option to be able to use it?

Thanks.

Hi @StephanCC,

 

Secure boot does not support smart Bootable ISO. You will have to disable to secure boot, temporary.

 

https://dell.to/458Hsml