@nina_kali_nina I have both Chokanji 4 and V running in QEMU 5.2.0. 4 installs fine without any special considerations. The issue with V is that Chokanji's VMware driver doesn't get along with QEMU's limited and somewhat broken implementation of the VMport. Disabling the VMport by using the -M pc,vmport=off option to QEMU fixes the VMport incompatibility (4 lacks the VMware driver). The only other QEMU-related issue I've found is the floppy doesn't work so you have to boot from CD