kvm kernel version too old: KVM_GET_API_VERSION ioctl not supported
Could not initialize KVM, will disable KVM support
Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal
error, but for better emulation accuracy either use a 2.6 host Linux kernel or
type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.
qemu: could not open hard disk image '/tmp/disk'