diff --git a/src/cloudron.js b/src/cloudron.js
index a15d994c8..a72684c6c 100644
--- a/src/cloudron.js
+++ b/src/cloudron.js
@@ -39,7 +39,6 @@ const apps = require('./apps.js'),
     dns = require('./dns.js'),
     dockerProxy = require('./dockerproxy.js'),
     eventlog = require('./eventlog.js'),
-    execSync = require('child_process').execSync,
     fs = require('fs'),
     logs = require('./logs.js'),
     mail = require('./mail.js'),
@@ -337,21 +336,13 @@ async function updateDiskUsage() {
 }
 
 async function getBlockDevices() {
-    let info;
+    const info = safe.JSON.parse(safe.child_process.execSync('lsblk --paths --json --list --fs', { encoding: 'utf8' }));
+    if (!info) throw new BoxError(BoxError.INTERNAL_ERROR, safe.error.message);
 
-    try {
-        info = JSON.parse(execSync('lsblk --paths --json --list --fs', { encoding: 'utf8' }));
-    } catch (e) {
-        debug('Failed to list disks:', e);
-        throw new BoxError(BoxError.INTERNAL_ERROR, e);
-    }
-
-    // filter only for ext4 and xfs disks
     const devices = info.blockdevices.filter(d => d.fstype === 'ext4' || d.fstype === 'xfs');
 
     debug(`getBlockDevices: Found ${devices.length} devices. ${devices.map(d => d.name).join(', ')}`);
 
-    // convert to fixed format
     return devices.map(function (d) {
         return {
             path: d.name,