The function "snapshotLookupByName" has a required parameter in older versions of libvirt. On newer versions, however, this parameter is optional and it was causing an error on RHEL because it uses an old version of libvirt. Always use the parameter in function "snapshotLookupByName" with its default value (0). Fix issue #553 ("Get snapshots of vm raise 500 error"). Signed-off-by: Crístian Viana <vianac(a)linux.vnet.ibm.com&gt; --- src/kimchi/model/vmsnapshots.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/kimchi/model/vmsnapshots.py b/src/kimchi/model/vmsnapshots.py index bb9bfaa..725770d 100644 --- a/src/kimchi/model/vmsnapshots.py +++ b/src/kimchi/model/vmsnapshots.py @@ -165,7 +165,7 @@ class VMSnapshotModel(object): vir_dom = VMModel.get_vm(vm_name, self.conn) try: - return vir_dom.snapshotLookupByName(name) + return vir_dom.snapshotLookupByName(name, 0) except libvirt.libvirtError, e: code = e.get_error_code() if code == libvirt.VIR_ERR_NO_DOMAIN_SNAPSHOT: