On 12/26/17 07:24, Tom Horsley wrote: > I've just gotten everything switched to fedora 27, > and I'm now finding that guestmount fails on a > running VMs disk image. I used to be able to > mount --ro and see a read only snapshot of the > disk even if the KVM was still running. Now I > get a lot of errors when I run: > > LIBGUESTFS_DEBUG=1 LIBGUESTFS_TRACE=1 guestmount -d centinil -i --ro mnt > > One of the errors that appears is: > > qemu-img: /tmp/libguestfssn6HDK/overlay1.qcow2: Failed to get shared "write" lock > Is another process using the image? > > And, yes, another process is using the image, but --ro > used to work even when that was the case. > > Should I submit a bug on this, or is this change > deliberate? > > (The guestmount does seem to work fine once the VM is > shut down). I'd never used the guestmount command. In trying it, I found the same situation. I wonder if this is the same as https://bugs.launchpad.net/qemu/+bug/1721788 ; ? -- Fedora Users List - The place to go to speculate endlessly
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