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From 585cde451b1b6ba28765022f67731fafca3e1be5 Mon Sep 17 00:00:00 2001
From: "Richard W.M. Jones" <rjones@redhat.com>
Date: Thu, 23 Jul 2015 18:15:36 -0400
Subject: [PATCH] RHEL 7: daemon: umount-all: Hack to avoid umount: /sysroot:
 target is busy (RHBZ#1246032).

This bug is not properly understood (although readily reproducible).
However this hack makes it go away for now.

https://bugzilla.redhat.com/show_bug.cgi?id=1246032
---
 daemon/mount.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/daemon/mount.c b/daemon/mount.c
index 61ce64449..b038a89c3 100644
--- a/daemon/mount.c
+++ b/daemon/mount.c
@@ -28,6 +28,8 @@
 #include <sys/types.h>
 #include <mntent.h>
 
+#include "ignore-value.h"
+
 #include "daemon.h"
 #include "actions.h"
 
@@ -306,6 +308,9 @@ do_umount_all (void)
   if (mounts.size > 0)
     qsort (mounts.argv, mounts.size, sizeof (char *), compare_longest_first);
 
+  /* Hack to work around RHBZ#1246032. */
+  ignore_value (system ("lsof /sysroot"));
+
   /* Unmount them. */
   for (i = 0; i < mounts.size; ++i) {
     CLEANUP_FREE char *err = NULL;
-- 
2.17.1