Yocto 2.3

Move OpenBMC to Yocto 2.3(pyro).

Tested: Built and verified Witherspoon and Palmetto images
Change-Id: I50744030e771f4850afc2a93a10d3507e76d36bc
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
Resolves: openbmc/openbmc#2461
diff --git a/import-layers/yocto-poky/meta/recipes-core/images/core-image-tiny-initramfs.bb b/import-layers/yocto-poky/meta/recipes-core/images/core-image-tiny-initramfs.bb
new file mode 100644
index 0000000..184727d
--- /dev/null
+++ b/import-layers/yocto-poky/meta/recipes-core/images/core-image-tiny-initramfs.bb
@@ -0,0 +1,42 @@
+# Simple initramfs image artifact generation for tiny images.
+DESCRIPTION = "Tiny image capable of booting a device. The kernel includes \
+the Minimal RAM-based Initial Root Filesystem (initramfs), which finds the \
+first 'init' program more efficiently.  core-image-tiny-initramfs doesn't \
+actually generate an image but rather generates boot and rootfs artifacts \
+into a common location that can subsequently be picked up by external image \
+generation tools such as wic."
+
+PACKAGE_INSTALL = "initramfs-live-boot packagegroup-core-boot dropbear ${VIRTUAL-RUNTIME_base-utils} udev base-passwd ${ROOTFS_BOOTSTRAP_INSTALL}"
+
+# Do not pollute the initrd image with rootfs features
+IMAGE_FEATURES = ""
+
+export IMAGE_BASENAME = "core-image-tiny-initramfs"
+IMAGE_LINGUAS = ""
+
+LICENSE = "MIT"
+
+# don't actually generate an image, just the artifacts needed for one
+IMAGE_FSTYPES = "${INITRAMFS_FSTYPES} wic"
+
+inherit core-image
+
+IMAGE_ROOTFS_SIZE = "8192"
+IMAGE_ROOTFS_EXTRA_SPACE = "0"
+
+BAD_RECOMMENDATIONS += "busybox-syslog"
+
+# Use the same restriction as initramfs-live-install
+COMPATIBLE_HOST = "(i.86|x86_64).*-linux"
+
+python tinyinitrd () {
+  # Modify our init file so the user knows we drop to shell prompt on purpose
+  newinit = None
+  with open(d.expand('${IMAGE_ROOTFS}/init'), 'r') as init:
+    newinit = init.read()
+    newinit = newinit.replace('Cannot find $ROOT_IMAGE file in /run/media/* , dropping to a shell ', 'Poky Tiny Reference Distribution:')
+  with open(d.expand('${IMAGE_ROOTFS}/init'), 'w') as init:
+    init.write(newinit)
+}
+
+IMAGE_PREPROCESS_COMMAND += "tinyinitrd;"