blockdevices() catching errors

lib/filesystem.js

@@ -268,30 +268,34 @@ function parseDevices(lines) {
 function parseBlk(lines) {
   let data = [];
 
-  lines.filter(line => line !== '').forEach((line) => {
-    line = decodeURIComponent(line.replace(/\\x/g, '%'));
-    line = line.replace(/\\/g, '\\\\');
-    let disk = JSON.parse(line);
-    data.push({
-      'name': disk.name,
-      'type': disk.type,
-      'fstype': disk.fstype,
-      'mount': disk.mountpoint,
-      'size': parseInt(disk.size),
-      'physical': (disk.type === 'disk' ? (disk.rota === '0' ? 'SSD' : 'HDD') : (disk.type === 'rom' ? 'CD/DVD' : '')),
-      'uuid': disk.uuid,
-      'label': disk.label,
-      'model': disk.model,
-      'serial': disk.serial,
-      'removable': disk.rm === '1',
-      'protocol': disk.tran,
-      'group': disk.group,
+  try {
+    lines.filter(line => line !== '').forEach((line) => {
+      line = decodeURIComponent(line.replace(/\\x/g, '%'));
+      line = line.replace(/\\/g, '\\\\');
+      let disk = JSON.parse(line);
+      data.push({
+        'name': disk.name,
+        'type': disk.type,
+        'fstype': disk.fstype,
+        'mount': disk.mountpoint,
+        'size': parseInt(disk.size),
+        'physical': (disk.type === 'disk' ? (disk.rota === '0' ? 'SSD' : 'HDD') : (disk.type === 'rom' ? 'CD/DVD' : '')),
+        'uuid': disk.uuid,
+        'label': disk.label,
+        'model': disk.model,
+        'serial': disk.serial,
+        'removable': disk.rm === '1',
+        'protocol': disk.tran,
+        'group': disk.group,
+      });
     });
-  });
+    data = util.unique(data);
+    data = util.sortByKey(data, ['type', 'name']);
+    return data;
+  } catch (e) {
+    return [];
+  }
 
-  data = util.unique(data);
-  data = util.sortByKey(data, ['type', 'name']);
-  return data;
 }
 
 function blkStdoutToObject(stdout) {