diff --git a/Mounting-multiple-disks-in-iPXE-mode.md b/Mounting-multiple-disks-in-iPXE-mode.md
index 0d5eb23..d2eec94 100644
--- a/Mounting-multiple-disks-in-iPXE-mode.md
+++ b/Mounting-multiple-disks-in-iPXE-mode.md
@@ -141,6 +141,13 @@ Debug Mode (server): false
 /dev/sdb             ext4            2.9G      9.3M      2.8G   0% /mnt/user-docker/overlay
 ```
 
+## Troubleshooting
+
+If you don't get the expected result, you can check these two points:
+
+1. The output of `ros c export`, this can make you know if `runcmd` is actually set.
+2. The console logs `system-docker logs console`, this can make you know if `runcmd` runs failed.
+
 ## Others
 There was a bug for cloudinit url datasource in v1.1.3, please refer to this [issue](https://github.com/rancher/os/issues/2144) .
 In the case of multiple nics, the content of the url sometimes fails to download.