@Joseph Salisbury just tested again, and the problem seems related to the media or the way the ISO is burned.
Beta1 live USB + persistent storage got the problem.
Beta2 live USB WITHOUT persistent storage worked just fine.
Beta2 live USB + persistent storage got the problem again.
Sadly, I can't test the installation but I' gonna try with a live DVD, to in case its related to the USB boot utility.
@Joseph Salisbury just tested again, and the problem seems related to the media or the way the ISO is burned.
Beta1 live USB + persistent storage got the problem.
Beta2 live USB WITHOUT persistent storage worked just fine.
Beta2 live USB + persistent storage got the problem again.
Sadly, I can't test the installation but I' gonna try with a live DVD, to in case its related to the USB boot utility.