From 65536f1f6cfc56a92db6bd0b0f887431e03bee22 Mon Sep 17 00:00:00 2001
From: Christian Hesse <mail@eworm.de>
Date: Fri, 29 Jun 2018 11:16:19 +0200
Subject: Remove cow file early for non-persistent systems

The kernel has an open file handle after setting up the mapping. We can
remove it early to make sure it is gone on shutdown.

This helps to keep the cow_device clean for non-persistent systems where
cow_directory contains a version specific string.

Signed-off-by: Christian Hesse <mail@eworm.de>
---
 hooks/archiso | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'hooks')

diff --git a/hooks/archiso b/hooks/archiso
index 753e3da..5c56561 100644
--- a/hooks/archiso
+++ b/hooks/archiso
@@ -33,6 +33,10 @@ _mnt_dmsnapshot() {
 
     dmsetup create ${dm_snap_name} --table "0 ${ro_dev_size} snapshot ${ro_dev} ${rw_dev} ${cow_persistent} ${cow_chunksize}"
 
+    if [[ "${cow_persistent}" != "P" ]]; then
+        rm -f "/run/archiso/cowspace/${cow_directory}/${img_name}.cow"
+    fi
+
     _mnt_dev "/dev/mapper/${dm_snap_name}" "${newroot}${mnt}" "-w" "defaults"
     echo $(readlink -f /dev/mapper/${dm_snap_name}) >> /run/archiso/used_block_devices
 }
-- 
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