-Create autoinst directory if required

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@6365 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd

xCAT-server/lib/xcat/plugins/windows.pm

@@ -74,6 +74,9 @@ sub mkimage {
     my $ostab = xCAT::Table->new('nodetype');
     my $oshash = $ostab->getNodesAttribs(\@nodes,['profile','arch']);
     my $shandle;
+    unless (-d "$installroot/autoinst") {
+        mkpath "$installroot/autoinst";
+    }
     foreach $node (@nodes) {
         $ent = $oshash->{$node}->[0];
         unless ($ent->{arch} and $ent->{profile})