Since qemu commit 3ef6c40ad0b it can fail if trying to hotplug a disk that is not qcow2 despite us saying it is. We need to error out in that case. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com&gt; --- src/qemu/qemu_monitor_text.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/qemu/qemu_monitor_text.c b/src/qemu/qemu_monitor_text.c index 66c94fbcd..737e8389b 100644 --- a/src/qemu/qemu_monitor_text.c +++ b/src/qemu/qemu_monitor_text.c @@ -1963,6 +1963,12 @@ int qemuMonitorTextAddDrive(qemuMonitorPtr mon, goto cleanup; } + if (strstr(reply, "Image is not in")) { + virReportError(VIR_ERR_OPERATION_FAILED, "%s", + _("Incorrect disk format")); + goto cleanup; + } + ret = 0; cleanup: -- 2.13.0