Converting qcow1 to qcow2

blackpaw

Renowned Member
Nov 1, 2013
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I mistakenly converted a bunch of vsphere (vmdk) VM's to qcow rather than qcow2 (using qemu-img convert). From the docs it looks like qcow1 doesn't support multiple snapshots so I can't leave them that way.

Is there a quick and easy way to inplace upgrade qcow1 to qcow2? I really don't want to rerun qemu-img convert on the many GB of data all over again, it would take days.

thanks.