Description of problem: When creating a new VM, the storage default format is now qcow2 (was raw). Changing the format to raw, however, does not change the extension on the file. This can lead to some confusion if the virtual machine is moved, and the admin doesn't realize that it is really a raw image that is just named with a qcow2 extension. It appears that the wizard is creating the file too early in the process. It should hold off until Begin Installation is selected. Version-Release number of selected component (if applicable): virt-manager-1.0.1-1.fc20.noarch How reproducible: Always. Steps to Reproduce: 1. Create a new VM. 2. Check box to configure advanced options before install. 3. Change image format on storage from qcow2 to raw. 4, Image still has qcow2 extension. Actual results: vm machine name: fedora20 with image format changed from default of qcow2 to raw vm image name: fedora20.qcow2 Expected results: vm machine name: fedora20 with image format changed from default of qcow2 to raw vm image name: fedora20.img
That UI bit isn't doing what you think it's doing. It's only used to tell libvirt what storage format the disk image is already in, it does _not_ transparently reformat the disk to a different format. Libvirt can't do the auto detection since there are security implications. I've clarified this upstream now: commit 70da20682c9aba1e2bc738b19dfc6bb714d38496 Author: Cole Robinson <crobinso> Date: Mon Apr 21 17:04:33 2014 -0400 details: Explicit warn that 'format' doesn't change image format (bz 1089457
virt-manager-1.0.1-3.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/virt-manager-1.0.1-3.fc20
Package virt-manager-1.0.1-3.fc20: * should fix your issue, * was pushed to the Fedora 20 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing virt-manager-1.0.1-3.fc20' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2014-5846/virt-manager-1.0.1-3.fc20 then log in and leave karma (feedback).
virt-manager-1.0.1-3.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.