meta-netboot/classes/netboot.bbclass

   1 # Enable network bootable image and initrd/initramfs
   2
   3 OVERRIDES .= ":netboot"
   4 # add 512MB of extra space in ext4 output image
   5 IMAGE_ROOTFS_EXTRA_SPACE = "524288"
   6 NETBOOT_ENABLED ??= "1"
   7
   8 python () {
   9     if (bb.utils.contains("IMAGE_FSTYPES","live",True,False,d)):
  10         # typical case for Minnowboard Max
  11         d.setVar("INITRD_IMAGE","initramfs-netboot-image")
  12         d.setVar("INITRD_IMAGE_LIVE",d.getVar("INITRD_IMAGE",True))
  13         d.setVar("INITRD_LIVE","%s/%s-%s.ext4.gz" % (
  14             d.getVar("DEPLOY_DIR_IMAGE",True),
  15             d.getVar("INITRD_IMAGE_LIVE",True),
  16             d.getVar("MACHINE",True)
  17         ))
  18     else:
  19         d.setVar("INITRAMFS_IMAGE","initramfs-netboot-image")
  20         if (d.getVar("KERNEL_IMAGETYPE",True) == "uImage"):
  21             # case for "old" u-boot images, like Porter board
  22             d.setVar("NETBOOT_FSTYPES", "ext4.gz.u-boot");
  23         else:
  24             # case for new u-boot images which don't require uImage format
  25             d.setVar("NETBOOT_FSTYPES", "ext4.gz");
  26 }
  27