grub: Fix backwards compatibility with OSTreefeature_CPDX-3499

Before NFVA 2.3.0, OSTree only checked for the existence of
/boot/grub2/grub.cfg, skipping creating grub.cfg if that file was not
present.
In NFVA 2.3.0, only /boot/grub/grub.cfg is created, leading to issues
when trying to downgrade to an older NFVA release.

To maintain backwards compatibility with OSTree versions that only
check the old path, create both /boot/{grub,grub2} as symlinks to the
loader directory managed by OSTree.

Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
Change-Id: Ic2c89930794e4c9d3ee3b2468d1331e5d7f63834

1 files changed, 1 insertions, 0 deletions

diff --git a/classes/override_image_types_ota.inc b/classes/override_image_types_ota.inc
index ded70dd..da920c1 100644
--- a/classes/override_image_types_ota.inc
+++ b/classes/override_image_types_ota.inc
@@ -34,6 +34,7 @@ IMAGE_CMD_otaimg () {
 
                 if [ "${OSTREE_BOOTLOADER}" = "grub" ]; then
                         ln -s loader ${PHYS_SYSROOT}/boot/grub
+                        ln -s loader ${PHYS_SYSROOT}/boot/grub2
                         touch ${PHYS_SYSROOT}/boot/grub/grub.cfg
                 elif [ "${OSTREE_BOOTLOADER}" = "u-boot" ]; then
                         touch ${PHYS_SYSROOT}/boot/loader/uEnv.txt