CaCO3

Hi all I tried to get it working with Virtual Box (without an USB drive), mainly orienting on https://xpenology.club/install-dsm-7-on-baremetal-or-vm/. I seem to be able to configure it correctly with the scripts. When I reboot my virtual machine, I see 2 new entries in grub, one for USB, one for SATA. But which ever I boot, it gets stuck on "Booting the kernel.". Has anybody a tip for me?