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| author |   Stephane Desneux <stephane.desneux@iot.bzh> | 2016-05-23 17:53:36 +0200 |
|---|---|---|
| committer |   Gerrit Code Review <gerrit@172.30.200.200> | 2016-05-29 10:21:30 +0000 |
| commit | 56b1139ef2660535b112d0be4ddb2806f75298a8 (patch) | |
| tree | 7e71661d2d9f9a407fe58da7e572f7cffa3f51f6 /meta-netboot/classes/netboot.bbclass | |
| parent | 04dad68c951f206bd100e4dd82f9a77475e81f9d (diff) | |
add layer meta-netboot to enable network boot over NBD (Network Block Device)
To enable the build of network bootable images, the following line must be
added to conf/local.conf:
INHERIT += "netboot"
This layer contains recipes for the following components:
* busybox: activate the built-in NBD client
* initramfs-netboot: contains the init script started by the kernel,
responsible for mounting the remote root filesystem then pivoting and
exec'ing systemd
* initramfs-netboot-image: image to specify for building the initrd
More details are available in meta-netboot/README.
Bug-AGL: SPEC-175
Change-Id: Id2328dd9233d238cde77311e64e58344be244988
Signed-off-by: Stephane Desneux <stephane.desneux@iot.bzh>
Diffstat (limited to 'meta-netboot/classes/netboot.bbclass')
| -rw-r--r-- | meta-netboot/classes/netboot.bbclass | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/meta-netboot/classes/netboot.bbclass b/meta-netboot/classes/netboot.bbclass new file mode 100644 index 000000000..0bb2452ad --- /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"); +} + |