I have simillar problem. When iam trying run .qcow2 image on Cisco CSP5228 Version : 2.7.0.264 Router stuck in phase :
%BOOT-5-OPMODE_LOG: R0/0: binos: System booted in AUTONOMOUS mode.. No response on keyboard
Same on CSR and ISR. Router on image csr1000v-universalk9.16.09.05-serial.qcow2 is running without problems
What is going on ?