id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host 18463,console boot hangs/highcpu without vbox serial & console=ttyS0 in grub,busk,,"When using a cloud-init image like https://cloud-images.ubuntu.com/bionic/current/bionic-server-cloudimg-amd64.ova , that uses grub console=ttyS0, boot hangs and high cpu occurs. You can fix via workaround on cloud init image by removing console=ttyS0 from GRUB_CMD_LINUX_DEFAULT ``` sudo sed -i 's/ console=ttyS0//g' /etc/default/grub.d/50-cloudimg-settings.cfg sudo update-grub ``` but then `virsh console my-kvm-qemu-vmnane` on Linux doesn't return console information Workaround is to add a serial port to vm via ""raw with /dev/null"" It works fine in VMWare and other vms just not Virtualbox. This seems like it would be a Virtualbox issue thought there is a bug here https://bugs.launchpad.net/cloud-images/+bug/1573095",defect,new,other,VirtualBox 6.0.4,,,,other,other