Cubi 5 12M: No Legacy Boot

[glaesne161502ee]

Hi,

I need to switch my Cubi 5 12M from UEFI to legacy boot, but the option seems to be disabled (see attached screenshot).

"Secure Boot" and both "Fastboot" options are disabled, BIOS is latest (860).

Apart from this, the "Secure Boot" option will be enabled again after "Save and Reboot", don't know if this is a bug....

Any help is appreciated

Kai

 

[Svet]

As I know only UEFI is supported by those units.

 

[glaesne161502ee]

There is an option for "Secure Boot" and a bunch of options to parameterize it, so I presume this would (at least in part) provide some legacy mode and disable UEFI.

The problem here is, when I disable Secure Boot (as seen in the screenshot) it is not persistet when exiting the BIOS by means of "Save and Reboot".

After reboot the setting is reset to "enabled"

 

[teletubby_po]

There is an option for "Secure Boot" and a bunch of options to parameterize it, so I presume this would (at least in part) provide some legacy mode and disable UEFI.

The problem here is, when I disable Secure Boot (as seen in the screenshot) it is not persistet when exiting the BIOS by means of "Save and Reboot".

After reboot the setting is reset to "enabled"

are you saving other bios settings changes as well? are other changes persistent? does it work if you restore the default BIOS settings first?

 

[glaesne161502ee]

At least the "Secure Boot=disabled" setting was _not_ persistet......

....until I read this thread
https://forum-en.msi.com/index.php?threads/secure-boot-violation-on-cubi-n-adl.388495/
and tried it out yesterday evening.

I experienced the same effect, having installed debian 12 in the meantime.

All in all my problem can be solved, but in a rather puzzling way..... ;-)