From b2b27ca486145ba4aa2c61975a96d98b6f7be7d3 Mon Sep 17 00:00:00 2001
From: Mikhail Karpenko <mikhail@elphel.com>
Date: Wed, 8 Mar 2017 16:56:27 -0700
Subject: [PATCH] Fix 'invalid blocks on device' error during disk formatting

---
 src/format_disk/format_disk.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/format_disk/format_disk.py b/src/format_disk/format_disk.py
index 6c5bb40..9935020 100644
--- a/src/format_disk/format_disk.py
+++ b/src/format_disk/format_disk.py
@@ -207,7 +207,7 @@ def partition_disk(dev_path, sys_size, disk_size, dry_run = True, force = False)
             time.sleep(2)
             partition = dev_path + '1'
             if force:
-                f_param = '-FF'
+                cmd_str = ['mkfs.ext4', '-FF', partition]
                 # if system partition contained a file system then it will be mounted right after partitioning
                 # check this situation and unmount partition
                 mounted = subprocess.check_output(['mount'])
@@ -216,8 +216,8 @@ def partition_disk(dev_path, sys_size, disk_size, dry_run = True, force = False)
                     if mount_point:
                         subprocess.check_output(['umount', partition])
             else:
-                f_param = ''
-            subprocess.check_output(['mkfs.ext4', f_param, partition], stderr = subprocess.STDOUT)
+                cmd_str = ['mkfs.ext4', partition]
+            subprocess.check_output(cmd_str, stderr = subprocess.STDOUT)
         ret_str = ""
     except subprocess.CalledProcessError as e:
         ret_str = e.output
-- 
2.18.1