builder: return error if all nodes fail to boot

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

builder/builder.go

@@ -163,6 +163,7 @@ func (b *Builder) Boot(ctx context.Context) (bool, error) {
 	}
 
 	baseCtx := ctx
+	errBoot := make(chan error)
 	eg, _ := errgroup.WithContext(ctx)
 	for _, idx := range toBoot {
 		func(idx int) {
@@ -171,18 +172,24 @@ func (b *Builder) Boot(ctx context.Context) (bool, error) {
 				_, err := driver.Boot(ctx, baseCtx, b.nodes[idx].Driver, pw)
 				if err != nil {
 					b.nodes[idx].Err = err
+					errBoot <- err
 				}
-				return nil
+				return err
 			})
 		}(idx)
 	}
 
 	err = eg.Wait()
+	close(errBoot)
 	err1 := printer.Wait()
 	if err == nil {
 		err = err1
 	}
 
+	// if all nodes failed to boot, we return an error
+	if len(errBoot) == len(toBoot) {
+		return false, err
+	}
 	return true, err
 }