openstack/diskimage-builder
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Support for UBoot.

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UBoot needs the kernel and ramdisk to be post processed
using mkimage utility. This element helps user do it as
part of the DIB process.

This element needs u-boot-tools to be installed.

The load address and entry point for UBoot kernel can
be specified as shown in the example below.

Example:
    export UBOOT_KERNEL_ADDR=0x80000
    export UBOOT_KERNEL_EP=0x80000

Change-Id: I0e1039bf57d1ef11a3f9831d82e24b1ec2136c13
This commit is contained in:
Om Kumar 2014-06-19 16:25:44 +05:30
parent 22cf8e824b
commit 58b5607004
2 changed files with 49 additions and 0 deletions
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15
elements/uboot/README.md Normal file
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Perform kernel/initrd post-processing for UBoot.
This element helps post-process the kernel/initrd
for use with uboot. It works with ramdisk images
as well as user images.
This element needs u-boot-tools to be installed
on the host.
The load address and entry point for UBoot kernel
can be specified as shown in the example below.
Example:
export UBOOT\_KERNEL\_ADDR=0x80000
export UBOOT\_KERNEL\_EP=0x80000

34
elements/uboot/cleanup.d/98-uboot Executable file
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#!/bin/bash
set -eux
set -o pipefail
function post_process()
{
mkimage -A $1 -O linux -T kernel -C none -a $UBOOT_KERNEL_ADDR -e $UBOOT_KERNEL_EP -n "Kernel" -d $KERNEL uImage
mv uImage $KERNEL
mkimage -A $1 -O linux -T ramdisk -a 0 -n "RAMdisk" -C gzip -d $RAMDISK uInitrd
mv uInitrd $RAMDISK
}
UBOOT_KERNEL_ADDR=${UBOOT_KERNEL_ADDR:-0x80000}
UBOOT_KERNEL_EP=${UBOOT_KERNEL_EP:-0x80000}
[ -n "$TARGET_ROOT" ]
# Check if RAMDISK is being built.
if [ -f "$TARGET_ROOT/tmp/ramdisk" ] ; then
KERNEL="$TARGET_ROOT/tmp/kernel"
RAMDISK="$TARGET_ROOT/tmp/ramdisk"
else
source "$_LIB/img-functions"
# Dig up the initrd and kernel to use.
select_boot_kernel_initrd "$TARGET_ROOT"
KERNEL="$TARGET_ROOT/boot/$KERNEL"
RAMDISK="$TARGET_ROOT/boot/$RAMDISK"
fi
case "$ARCH" in
arm*)
post_process arm
;;
esac