commit e11480db7ff15a9e878f6b3cc1199b439bf7c825
author Kevin Wolf <kwolf@redhat.com> Tue Mar 01 10:48:12 2011 +0100
committer Kevin Wolf <kwolf@redhat.com> Tue Mar 15 13:21:14 2011 +0100
tree 44e28826cadacae29974e44ce516b3cc60979ac5
parent 5614c188c65a8194ae499cb16400cab690a45299

Add error message for loading snapshot without VM state

It already fails, but it didn't tell the user why.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>

savevm.c

diff --git a/savevm.c b/savevm.c
index 60d2f2a..d1b9b4a 100644
--- a/savevm.c
+++ b/savevm.c
@@ -2021,6 +2021,8 @@
     if (ret < 0) {
         return ret;
     } else if (sn.vm_state_size == 0) {
+        error_report("This is a disk-only snapshot. Revert to it offline "
+            "using qemu-img.");
         return -EINVAL;
     }