On 30.03.2010, at 14:30, Kevin Wolf wrote: > Am 30.03.2010 14:22, schrieb Alexander Graf: >> Howdy, >> >> I just wanted to create a backed qcow2 image and was irritated by qemu-img >> not showing me the correct command line option. It's just missing from the >> list: > [...] >> Is this intentional? The actual command still works: >> >>> ag...@s390t27:~/git/qemu> qemu-img-kvm create -f qcow2 -b >>> /media/studio/images/SUSE/s390/sles11.raw /dev/shm/sles11-zipl.qcow2 >>> Formatting '/dev/shm/sles11-zipl.qcow2', fmt=qcow2 size=21474836480 >>> backing_file='/media/studio/images/SUSE/s390/sles11.raw' encryption=off >>> cluster_size=0 > > -b still works to maintain compatibility with older versions. The > documented way is -o backing_file=foo (the qemu-img output you quote > even contains this option).
Interesting O_o. Maybe it'd be a good idea to give some examples in the help output? The same way the -e and -b options were having examples there too. That really makes them easier to find. Alex
