From 0935339ce3b1d77073f4b3f940b856ecd6ac9de3 Mon Sep 17 00:00:00 2001
From: root <jan.kratochvil@redhat.com>
Date: Jun 25 2019 08:26:54 +0000
Subject: Fix unmounting for LVM images


After successfully-looking finish:
/proc/mounts:/dev/mapper/fedora-root /tmp/root xfs rw,relatime,attr2,inode64,noquota 0 0
lrwxrwxrwx 1 root root 7 Jun 25 09:56 /dev/mapper/fedora-root -> ../dm-2

With debugging info:
+ sync
+ umount /dev/sdc3 /dev/sdc2 /dev/sdc1
umount: /dev/sdc3: not mounted.
umount: /dev/sdc1: not mounted.
+ '[' fedora '!=' '' ']'
+ vgchange -a n fedora
  Logical volume fedora/root contains a filesystem in use.
  Can't deactivate volume group "fedora" with 1 open logical volume(s)
+ rmdir /tmp/root /tmp/boot /tmp/fw
rmdir: failed to remove '/tmp/root': Device or resource busy
rmdir: failed to remove '/tmp/fw': No such file or directory

---

diff --git a/arm-image-installer b/arm-image-installer
index c428a4c..173bdba 100755
--- a/arm-image-installer
+++ b/arm-image-installer
@@ -519,7 +519,7 @@ fi
 
 sync 
 
-umount $ROOTPART $BOOTPART $FIRMPART &> /dev/null
+umount /tmp/root $BOOTPART $FIRMPART &> /dev/null
 if [ "$LVM_NAME" != "" ]; then
 	vgchange -a n $LVM_NAME &> /dev/null
 fi