[Qemu-devel] [Bug 660366] Re: "qemu-img convert -O qcow2 -o backing_file" makes huge images

2015-08-11 Thread sakishrist
My mistake. It's different case than mine. Above sequence (original report) works fine. But I do not really understand why the same is not achieved in my case. I use the convert instead of the create to get a full image in qcow format. From that point, the desired behaviour is to create a qcow tha

[Qemu-devel] [Bug 660366] Re: "qemu-img convert -O qcow2 -o backing_file" makes huge images

2015-08-10 Thread sakishrist
Is this reintroduced? I am on version 2.3.0 $ dd if=/dev/urandom of=disk bs=1M count=1024 $ qemu-img convert -f raw -O qcow2 disk disk.qcow $ qemu-img convert -f raw -O qcow2 -o backing_file=disk.qcow disk disk1.qcow $ ls -l total 3146388 -rw-r--r-- 1 sakis sakis 1073741824 10 авг 15,29 disk -r