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Fixes errors like "umount: /var/lib/os-prober/mount: target is busy."
which can appear in some corner-cases.
Bug: https://bugzilla.redhat.com/903906
--- a/common.sh
+++ b/common.sh
@@ -336,3 +336,13 @@ linux_mount_boot () {
mountboot="$bootpart $mounted"
}
+
+umount_exec=$(which umount)
+umount() {
+ if ! $umount_exec $@ 2> /dev/null; then
+ error "umount error, retrying after 1 sec"
+ sleep 1
+ $umount_exec $@
+ fi
+}
+
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