qemu-vmware ova 文件转换为 qcow2

apt-get install qemu-utils
# yum install qemu-img

tar -xvf appliance.ova

qemu-img convert -O qcow2 input.vdi output.qcow2
qemu-img convert -O qcow2 input.vmdk output.qcow2

emu-system-x86_64 \
    -m 1024 \
    -smp 2 \
    -enable-kvm \
    -drive if=none,id=disk00,format=qcow2,file=/var/lib/libvirt/images/Router/ROS7-6G-disk1.qcow2 \
    -device "ide-hd,drive=disk00,bus=ide.0,serial=00000000000000000001,model=VMware Virtual IDE Hard Drive" \
    -nic tap \
    -bios /usr/share/OVMF/OVMF_CODE.fd