ldoktor/autotest — comment on commit b96124e23251f77e10c72ca5a5599b7bc02050e2
File: client/tests/kvm/tests/cgroup.py line 47
By ldoktor:

Well dd is simple. I didn't wanted to mess with another disk format while I need only 1-8MB. Anyway I can change it to qemu-img raw disk if you want.