A bit debugging for CD-ROM creation problems

driver/vm.go

@@ -7,6 +7,7 @@ import (
 	"github.com/vmware/govmomi/object"
 	"github.com/vmware/govmomi/vim25/mo"
 	"github.com/vmware/govmomi/vim25/types"
+	"log"
 	"strings"
 	"time"
 )
@@ -575,6 +576,7 @@ func (vm *VirtualMachine) AddCdrom(controllerType string, isoPath string) error
 		devices.InsertIso(cdrom, isoPath)
 	}
 
+	log.Printf("Creating CD-ROM on controller '%v' with iso '%v'", controller, isoPath)
 	return vm.addDevice(cdrom)
 }
 

iso/step_add_cdrom.go

@@ -45,7 +45,7 @@ func (s *StepAddCDRom) Run(_ context.Context, state multistep.StateBag) multiste
 	if len(s.Config.ISOPaths) > 0 {
 		for _, path := range s.Config.ISOPaths {
 			if err := vm.AddCdrom(s.Config.CdromType, path); err != nil {
-				state.Put("error", fmt.Errorf("error mounting an image: %v", err))
+				state.Put("error", fmt.Errorf("error mounting an image '%v': %v", path, err))
 				return multistep.ActionHalt
 			}
 		}
@@ -53,7 +53,7 @@ func (s *StepAddCDRom) Run(_ context.Context, state multistep.StateBag) multiste
 
 	if path, ok := state.GetOk("iso_remote_path"); ok {
 		if err := vm.AddCdrom(s.Config.CdromType, path.(string)); err != nil {
-			state.Put("error", fmt.Errorf("error mounting an image: %v", err))
+			state.Put("error", fmt.Errorf("error mounting an image '%v': %v", path, err))
 			return multistep.ActionHalt
 		}
 	}