diff --git a/mount_linux.go b/mount_linux.go
index b9405ba12e9..c4485162987 100644
--- a/mount_linux.go
+++ b/mount_linux.go
@@ -345,10 +345,11 @@ func (mounter *SafeFormatAndMount) formatAndMount(source string, target string,
 		}
 
 		klog.Infof("Disk %q appears to be unformatted, attempting to format as type: %q with options: %v", source, fstype, args)
-		_, err := mounter.Exec.Command("mkfs."+fstype, args...).CombinedOutput()
+		output, err := mounter.Exec.Command("mkfs."+fstype, args...).CombinedOutput()
 		if err != nil {
-			klog.Errorf("format of disk %q failed: type:(%q) target:(%q) options:(%q)error:(%v)", source, fstype, target, options, err)
-			return NewMountError(FormatFailed, err.Error())
+			detailedErr := fmt.Sprintf("format of disk %q failed: type:(%q) target:(%q) options:(%q) errcode:(%v) output:(%v) ", source, fstype, target, options, err, string(output))
+			klog.Error(detailedErr)
+			return NewMountError(FormatFailed, detailedErr)
 		}
 
 		klog.Infof("Disk successfully formatted (mkfs): %s - %s %s", fstype, source, target)