SOLVED Truenas boot disk not visible bios

[K.J]

Who can tell us how I do boot from the Samsung SSD 970 EVO Plus 250GB truenas scale again after the last update from the bios.
As it does not appear in the boot menu anymore.
It is visible at boot override.
See attached print screens of the bios.

 

[joeschmuck]

The easiest way is to change the Boot Mode from "DUAL" to "LEGACY", not DUAL or UEFI. Once that is done you should be able to select the Samsung Drive as the first boot device.

 

[K.J]

The easiest way is to change the Boot Mode from "DUAL" to "LEGACY", not DUAL or UEFI. Once that is done you should be able to select the Samsung Drive as the first boot device.

Thanks @joeschmuck