Avoid multiple fdtdir entries per kernel by deleting before adding

extlinux-bootloader.spec

@@ -1,6 +1,6 @@
 Name:           extlinux-bootloader
 Version:        1.2
-Release:        5%{?dist}
+Release:        6%{?dist}
 Summary:        The EXTLINUX bootloader framework, for booting the local system
 
 License:        GPLv2+
@@ -38,6 +38,9 @@ install -p %{SOURCE1} %{buildroot}%{_sbindir}/extlinux
 
 
 %changelog
+* Thu Nov 22 2018 Pablo Greco <pablo@fliagreco.com.ar> - 1.2-6
+* Avoid multiple fdtdir entries
+
 * Fri Jul 13 2018 Fedora Release Engineering <releng@fedoraproject.org> - 1.2-5
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild
 

extlinux.sh

@@ -26,6 +26,7 @@ insert_fdtdir() {
     # for every 'kernel' directive found, map it to an 'fdtdir' directive
     # referencing the dtb directory and add it after the 'append' directive
     sed -i \
+        -e '/	fdtdir/d' \
         -e '/	kernel/{h;s/kernel/fdtdir/g;s/vmlinuz/dtb/g;x}' \
         -e '/	append/{p;x}' \
         /boot/extlinux/extlinux.conf