Hi, Did you try booting the pendrive on both UEFI and legacy?
I own an datatraveler too doesn’t seem to cause any problem during installation.
Used Rufus to burn 4.1Alpha
Thanks for the response,
About the booting: I do not know this distinction. I just upgraded the BIOS (ASUS UEFI BIOS ver. 2409).
I used Balena Etcher for the USB stick. (used that dozens of times before w/o problems)
How do I boot UEFI or legacy? And how do I know which one I used?
Gerard
You need to have two disks / USB drives / SSDs. One where you install the installer (which you then boot from) and one where you install Qubes into. This means after you boot the installer you should select your internal disk as the installation destination.