When I submitted this bug (2 years ago) that was not what happened. Apparently they fixed it in a newer version.
-- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/658610 Title: Check whether images have write permissions Status in QEMU: Confirmed Status in “qemu-kvm” package in Ubuntu: Confirmed Bug description: KVM/Qemu should check whether the disk images have write permissions in order to prevent users from getting weird IO errors in their VMs without understanding what's happening. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/658610/+subscriptions
