From 70b2564c4b85d74503fc6bb259d617061fabd18b Mon Sep 17 00:00:00 2001
From: NiLuJe <ninuje@gmail.com>
Date: Tue, 17 Dec 2019 00:28:51 +0100
Subject: [PATCH] Ensure we flush everything to disk after an update. (#5685)

WIll stall for longer, but with a visible message (vs. less stalling on
a white screen during the startup and a laggy FM for a while).
---
 platform/cervantes/koreader.sh | 2 ++
 platform/kindle/koreader.sh    | 2 ++
 platform/kobo/koreader.sh      | 2 ++
 3 files changed, 6 insertions(+)

diff --git a/platform/cervantes/koreader.sh b/platform/cervantes/koreader.sh
index 29470e41b..961d73128 100755
--- a/platform/cervantes/koreader.sh
+++ b/platform/cervantes/koreader.sh
@@ -34,6 +34,8 @@ ko_update_check() {
         fi
         rm -f "${NEWUPDATE}" # always purge newupdate in all cases to prevent update loop
         unset BLOCKS CPOINTS
+        # Ensure everything is flushed to disk before we restart. This *will* stall for a while on slow storage!
+        sync
     fi
 }
 
diff --git a/platform/kindle/koreader.sh b/platform/kindle/koreader.sh
index 576588fbb..db82f15cb 100755
--- a/platform/kindle/koreader.sh
+++ b/platform/kindle/koreader.sh
@@ -134,6 +134,8 @@ ko_update_check() {
         fi
         rm -f "${NEWUPDATE}" # always purge newupdate in all cases to prevent update loop
         unset BLOCKS CPOINTS
+        # Ensure everything is flushed to disk before we restart. This *will* stall for a while on slow storage!
+        sync
     fi
 }
 # NOTE: Keep doing an initial update check, in addition to one during the restart loop, so we can pickup potential updates of this very script...
diff --git a/platform/kobo/koreader.sh b/platform/kobo/koreader.sh
index 8725813b9..f48256655 100755
--- a/platform/kobo/koreader.sh
+++ b/platform/kobo/koreader.sh
@@ -49,6 +49,8 @@ ko_update_check() {
         fi
         rm -f "${NEWUPDATE}" # always purge newupdate in all cases to prevent update loop
         unset BLOCKS CPOINTS
+        # Ensure everything is flushed to disk before we restart. This *will* stall for a while on slow storage!
+        sync
     fi
 }
 # NOTE: Keep doing an initial update check, in addition to one during the restart loop, so we can pickup potential updates of this very script...