add layer meta-netboot to enable network boot over NBD (Network Block Device)

[AGL/meta-agl.git] / meta-netboot / classes / netboot.bbclass

diff --git a/meta-netboot/classes/netboot.bbclass b/meta-netboot/classes/netboot.bbclass
new file mode 100644 (file)
index 0000000..0bb2452
--- /dev/null
+++ b/meta-netboot/classes/netboot.bbclass
@@ -0,0 +1,26 @@
+# Enable network bootable image and initrd/initramfs
+
+# add image classes for uboot
+IMAGE_CLASSES += "${@'image_types_uboot' if (d.getVar("KERNEL_IMAGETYPE", True) == "uImage") else ''}"
+
+python () {
+       d.appendVar("IMAGE_FSTYPES"," ext4")
+
+       if (bb.utils.contains("IMAGE_FSTYPES","live",True,False,d)):
+               # typical case for Minnowboard Max
+               d.setVar("INITRD_IMAGE","initramfs-netboot-image")
+               d.setVar("INITRD","%s/%s-%s.ext4.gz" % (
+                       d.getVar("DEPLOY_DIR_IMAGE",True),
+                       d.getVar("INITRD_IMAGE",True),
+                       d.getVar("MACHINE",True)
+               ))
+       else:
+               d.appendVar("INITRAMFS_IMAGE"," initramfs-netboot-image")
+               if (d.getVar("KERNEL_IMAGETYPE",True) == "uImage"):
+                       # case for "old" u-boot images, like Porter board
+                       d.appendVar("INITRAMFS_FSTYPES"," ext4.gz.u-boot");
+               else:
+                       # case for new u-boot images which don't require uImage format 
+                       d.appendVar("INITRAMFS_FSTYPES"," ext4.gz");
+}
+