From 25d6ec157fcfb9b337d46205dcf474f53eaa9c3c Mon Sep 17 00:00:00 2001
From: Johannes Zellner <johannes@cloudron.io>
Date: Tue, 14 Oct 2025 15:22:57 +0200
Subject: [PATCH] Check for statsLine not blockDevice

---
 src/metrics.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/metrics.js b/src/metrics.js
index 786ae8aa9..309afea45 100644
--- a/src/metrics.js
+++ b/src/metrics.js
@@ -112,7 +112,7 @@ async function readDiskMetrics() {
 
     const diskstats = await fs.promises.readFile('/proc/diskstats', { encoding: 'utf8' });
     const statsLine = diskstats.split('\n').find(l => l.includes(` ${blockDevice} `));
-    if (!blockDevice) throw new BoxError(BoxError.EXTERNAL_ERROR, 'Could not get disk stats');
+    if (!statsLine) throw new BoxError(BoxError.EXTERNAL_ERROR, 'Could not get disk stats');
 
     const parts = statsLine.trim().split(/\s+/);
     const sectorsRead = parseInt(parts[5], 10);   // field 6 . one sectiro is 512 bytes