getDiskDeviceSize: don't silently return None (part of xenserver#66)

Signed-off-by: Yann Dirson <[email protected]>
xcp-ng · Jun 12, 2024 · a6a3a8f · a6a3a8f
1 parent 3ca3be0
commit a6a3a8f
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/diskutil.py b/diskutil.py
@@ -280,6 +280,9 @@ def getDiskDeviceSize(dev):
         return int(__readOneLineFile__("/sys/block/%s/device/block/size" % dev))
     elif os.path.exists("/sys/block/%s/size" % dev):
         return int(__readOneLineFile__("/sys/block/%s/size" % dev))
+    else:
+        raise Exception("{0} not found as /sys/block/{0}/device/block/size or /sys/block/{0}/size"
+                        .format(dev))
 
 def getDiskSerialNumber(dev):
     # For Multipath nodes return info about 1st slave