64963: Acronis Cyber Protect Cloud, Acronis Cyber Backup: Hyper-V VM fails to boot from bootable media with "The image's hash and certificate are not allowed (DB)"

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Last update: 31-05-2021


You try to boot Gen2 Hyper-V VM with Acronis Bootable Media

Media fails to boot with the following message:

The image's hash and certificate are not allowed (DB)

No UEFI-compatible file system was found.


Secure Boot is enabled on the VM. Secure Boot prevents boot from a Linux bootloader in the ISO file (the Linux bootloader neither signed nor certified by Microsoft).

This issue is not specific to Acronis Bootable Media. 


Temporarily disable Secure Boot  in Settings -> Security -> Enable Secure Boot.

Alternatively, the "Secure Boot" selection can be changed to "Microsoft UEFI Certificate Authority."  This selection should work for the majority of Linux distributions according to Microsoft.