OSTree: Add OSTree kernel parameters to enable live booting

Change-Id: I9275a7a3a7ebf5f7f3a8c1384d8eade98cd8043c
Signed-off-by: Gabriel Ionescu <gabriel.ionescu@enea.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/images/enea-nfv-access-host-common.inc b/images/enea-nfv-access-host-common.inc
index 83d7bd0..5e071ef 100644
--- a/images/enea-nfv-access-host-common.inc
+++ b/images/enea-nfv-access-host-common.inc
@@ -26,3 +26,15 @@ python __anonymous() {
     if bb.utils.contains('DISTRO_FEATURES', 'sota', True, False, d):
         d.appendVarFlag("do_bootimg", "depends", " %s:do_image_otaimg" % d.getVar("IMAGE_BASENAME", True))
 }
+
+# Append OSTree specific parameters to the kernel command line before creating the live image
+python do_bootimg_prepend () {
+    if bb.utils.contains('DISTRO_FEATURES', 'sota', True, False, d):
+        ostree_osname = d.getVar('OSTREE_OSNAME')
+        checksum = bb.utils.sha256_file(d.getVar('DEPLOY_DIR_IMAGE') + "/" + d.getVar('OSTREE_KERNEL'))
+
+        # The boot tree is identified through a sha256 checksum over the kernel binary
+        ostree_params = " ostree=/ostree/boot.1/" + ostree_osname + "/" + checksum + "/0"
+
+        d.setVar("APPEND", d.getVar("APPEND") + ostree_params)
+}