From caec289d8220fc9a8d8b3d6e99271394f4ef83fe Mon Sep 17 00:00:00 2001
From: Vojtech Trefny <vtrefny@redhat.com>
Date: Wed, 27 Feb 2019 12:26:30 +0100
Subject: [PATCH] Automatically adjust size of growable devices for new format

Without this kickstart 'part /home --size=1 --grow --encrypted'
will fail because min size for LUKS is 2 MiB.

Resolves: rhbz#1680013
---
 blivet/devices/storage.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/blivet/devices/storage.py b/blivet/devices/storage.py
index 904b60df..9d6001e8 100644
--- a/blivet/devices/storage.py
+++ b/blivet/devices/storage.py
@@ -721,7 +721,12 @@ def _set_format(self, fmt):
             if fmt.max_size and fmt.max_size < self.size:
                 raise errors.DeviceError("device is too large for new format")
             elif fmt.min_size and fmt.min_size > self.size:
-                raise errors.DeviceError("device is too small for new format")
+                if self.growable:
+                    log.info("%s: using size %s instead of %s to accommodate "
+                             "format minimum size", self.name, fmt.min_size, self.size)
+                    self.size = fmt.min_size
+                else:
+                    raise errors.DeviceError("device is too small for new format")
 
         if self._format != fmt:
             callbacks.format_removed(device=self, fmt=self._format)