@Alex - Thank you for pointing that out. I just tried to install version R4.0.1rc1 on the x230 again, but the installation breaks off when configuring ext4. It is probably due to the HW or Coreboot.
I will flash my x220 with Coreboot/SeaBios + Intel ME Cleaner and install R4.0.1rc1 again. Then i let you know if your tip worked. PS. Under Qubes 3.0/3.1/3.2 i didn't have these problems. Greetings Sebi -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/84e80aa2-87b8-400a-88e5-5c72783b7c0a%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.