I think what it means that, if the file permission for the disk image in host OS is read only for the user running qemu, then it is not saying that clearly. May be qemu should just exit as soon as it sees that image is read only. I am not sure if in some kind of mode it is possible to run a VM without the need of writing anything on the image. If that is the case then probably it should give an option or default to run in that mode under such circumstances.
-- 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: New 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.
