Ok, it cannot find the UEFI booloader on the disk.
Do you have installed UEFI bootcode on both disks now?
It can sometimes be a little tricky to make it work. That's because allmost no manufacturer
respects the standards 100% and invent there own ideas of what's right
It looks like it still searches for a Master Boot Record entry before UEFI, but there is no MBR.
One of my four computers does this, too. Though it's against the standard and shouldn't be.
If you have an option or submenu called "CSM ..." disable every single option here.
Do you have installed UEFI bootcode on both disks now?
It can sometimes be a little tricky to make it work. That's because allmost no manufacturer
respects the standards 100% and invent there own ideas of what's right
It looks like it still searches for a Master Boot Record entry before UEFI, but there is no MBR.
One of my four computers does this, too. Though it's against the standard and shouldn't be.
If you have an option or submenu called "CSM ..." disable every single option here.