Use alternate URL if first fail

providers/asrockrack/firmware.go

@@ -72,9 +72,19 @@ func (a *ASRockRack) firmwareInstallBMC(ctx context.Context, reader io.Reader, f
 
 	// 2. upload firmware image file
 	a.log.V(2).WithValues("step", "2/4").Info("upload BMC firmware image")
-	err = a.uploadFirmware(ctx, "api/maintenance/firmware/firmware", reader, fileSize)
+
+	err = a.uploadFirmware(ctx, "api/maintenance/firmware", reader, fileSize)
 	if err != nil {
-		return errors.Wrap(err, "failed in step 2/4 - upload BMC firmware image")
+		// Try the special URL for e3c256d4i
+		a.log.V(2).WithValues("step", "2/4").Info("Try alternate URL")
+		// Restart reader from start
+		reader.(*os.File).Seek(0, io.SeekStart)
+		err2 := a.uploadFirmware(ctx, "api/maintenance/firmware/firmware", reader, fileSize)
+		if err2 != nil {
+			a.log.V(2).WithValues("step", "2/4").Info("Alternate URL err:" + err2.Error())
+			// if also in err, report first error
+			return errors.Wrap(err2, "failed in step 2/4 - upload BMC firmware image")
+		}
 	}
 
 	// 3. BMC to verify the uploaded file