diff --git a/teepod/src/app.rs b/teepod/src/app.rs
index afa0dba..936cfc3 100644
--- a/teepod/src/app.rs
+++ b/teepod/src/app.rs
@@ -136,6 +136,11 @@ impl App {
     }
 
     pub async fn start_vm(&self, id: &str) -> Result<()> {
+        let is_running = self
+            .supervisor
+            .info(id)
+            .await?
+            .map_or(false, |info| info.state.status.is_running());
         let process_config = {
             let mut state = self.lock();
             let vm_state = state.get_mut(id).context("VM not found")?;
@@ -153,7 +158,7 @@ impl App {
                 .config_qemu(&self.config.qemu_path, &work_dir)?;
             // Older images does not support for progress reporting
             if vm_state.config.image.info.shared_ro {
-                vm_state.state.clear();
+                vm_state.state.start(is_running);
             } else {
                 vm_state.state.reset_na();
             }
@@ -327,8 +332,12 @@ struct VmStateMut {
 }
 
 impl VmStateMut {
-    pub fn clear(&mut self) {
-        self.boot_progress.clear();
+    pub fn start(&mut self, already_running: bool) {
+        self.boot_progress = if already_running {
+            "running".to_string()
+        } else {
+            "booting".to_string()
+        };
         self.boot_error.clear();
         self.shutdown_progress.clear();
     }
diff --git a/teepod/src/console.html b/teepod/src/console.html
index ea8b047..da818d4 100644
--- a/teepod/src/console.html
+++ b/teepod/src/console.html
@@ -1393,6 +1393,12 @@ <h3>Derive VM</h3>
                     if (vm.shutdown_progress) {
                         return "shutting down";
                     }
+                    // If boot_progress is 'running', it means the vm is already running before
+                    // teepod was started, so it's state is unknown to teepod.
+                    // TODO: read the status from the guest
+                    if (vm.boot_progress == 'running') {
+                        return "running";
+                    }
                     if (vm.boot_progress != 'done') {
                         return "booting";
                     }