On Fri, Jul 27, 2018 at 6:37 PM Gianluca Cecchi <gianluca.cecchi@gmail.com> wrote:
...
 
And then:

[root@skull01 ~]# time qemu-img convert -f raw -O raw /images/w7/w7.img /dev/data/w7 

When converting to raw format on block device, you should use -W option for up to 6.5x
faster convert.

See https://bugzilla.redhat.com/show_bug.cgi?id=1511891#c57

Nir
 

real 13m27.934s
user 0m5.312s
sys 0m51.342s
[root@skull01 ~]#