[Buildroot] [PATCH 1/4] board/minnowboard-max: Rework to generate SD card image
Ezequiel Garcia
ezequiel at vanguardiasur.com.ar
Tue Apr 12 05:29:22 UTC 2016
Let's rework the board and config files to use genimage
to generate the SD card image directly.
Signed-off-by: Ezequiel Garcia <ezequiel at vanguardiasur.com.ar>
---
board/minnowboard-max/genimage.cfg | 34 ++++++++++++++++++++++++++++++++
board/minnowboard-max/post-image.sh | 13 +++++++++++++
board/minnowboard-max/readme.txt | 39 ++++++++++++-------------------------
configs/minnowboard_max_defconfig | 8 ++++++++
4 files changed, 67 insertions(+), 27 deletions(-)
create mode 100644 board/minnowboard-max/genimage.cfg
create mode 100755 board/minnowboard-max/post-image.sh
diff --git a/board/minnowboard-max/genimage.cfg b/board/minnowboard-max/genimage.cfg
new file mode 100644
index 000000000000..6cf787430752
--- /dev/null
+++ b/board/minnowboard-max/genimage.cfg
@@ -0,0 +1,34 @@
+# Create an image of the efi partition
+image efi-part.vfat {
+ vfat {
+ file startup.nsh {
+ image = "efi-part/startup.nsh"
+ }
+ file EFI {
+ image = "efi-part/EFI"
+ }
+ file bzImage {
+ image = "bzImage"
+ }
+ }
+ size=10M
+}
+
+# Create the sdcard image, pulling in
+# * the image created by buildroot
+# * the efi-partition created above
+image sdcard.img {
+ hdimage {
+ }
+
+ partition boot {
+ partition-type = 0xEF
+ image = "efi-part.vfat"
+ }
+
+ partition rootfs {
+ partition-type = 0x83
+ image = "rootfs.ext4"
+ size = 512M
+ }
+}
diff --git a/board/minnowboard-max/post-image.sh b/board/minnowboard-max/post-image.sh
new file mode 100755
index 000000000000..e90dd6b8cf10
--- /dev/null
+++ b/board/minnowboard-max/post-image.sh
@@ -0,0 +1,13 @@
+#!/bin/sh -e
+
+GENIMAGE_CFG="board/minnowboard-max/genimage.cfg"
+GENIMAGE_TMP="${BUILD_DIR}/genimage.tmp"
+
+rm -rf "${GENIMAGE_TMP}"
+
+genimage \
+ --rootpath "${TARGET_DIR}" \
+ --tmppath "${GENIMAGE_TMP}" \
+ --inputpath "${BINARIES_DIR}" \
+ --outputpath "${BINARIES_DIR}" \
+ --config "${GENIMAGE_CFG}"
diff --git a/board/minnowboard-max/readme.txt b/board/minnowboard-max/readme.txt
index 5f52369b97d6..dfad2aba2123 100644
--- a/board/minnowboard-max/readme.txt
+++ b/board/minnowboard-max/readme.txt
@@ -1,40 +1,25 @@
-Prepare the SD card for the Minnow Board MAX
+How to get started with the Minnow Board MAX
============================================
- 1. Partition the SD card with a GPT partition table
+1. Build
- sudo cgdisk /dev/mmcblk0
+ Apply the defconfig:
- Create two partitions:
+ $ make minnowboard_max_defconfig
- a) First partition of a few dozens of megabytes, which will be
- used to store the bootloader and the kernel image. Type must
- be EF00 (EFI partition).
+ Add any additional packages required and build:
- b) Second partition of any size, which will be used to store the
- root filesystem. Type must be 8300 (Linux filesystem)
+ $ make
- 2. Prepare the boot partition
+2. Write the SD card
- We will format it, mount it, copy the EFI data generated by
- Buildroot, and the kernel image.
+ The build process will create a SD card image in output/images.
+ Write the image to an mSD card, insert into the Minnowboard MAX
+ and power the board on.
- sudo mkfs.vfat -F 32 -n boot /dev/mmcblk0p1
- sudo mount /dev/mmcblk0p1 /mnt
- sudo cp -a output/images/efi-part/* /mnt/
- sudo cp output/images/bzImage /mnt/
- sudo umount /mnt
+ $ dd if=output/images/sdcard.img of=/dev/mmcblk0; sync
- 3. Prepare the root partition
-
- We will format it, mount it, and extract the root filesystem.
-
- sudo mkfs.ext4 -L root /dev/mmcblk0p2
- sudo mount /dev/mmcblk0p2 /mnt
- sudo tar -C /mnt -xf output/images/rootfs.tar
- sudo umount /mnt
-
- 4. Enjoy
+3. Enjoy
Additional information about this board can be found at
http://www.minnowboard.org/ or http://wiki.minnowboard.org/MinnowBoard_MAX
diff --git a/configs/minnowboard_max_defconfig b/configs/minnowboard_max_defconfig
index 98996db958ff..47f7d4e96a55 100644
--- a/configs/minnowboard_max_defconfig
+++ b/configs/minnowboard_max_defconfig
@@ -5,9 +5,12 @@ BR2_x86_atom=y
# Misc
BR2_TARGET_GENERIC_GETTY_PORT="ttyS0"
BR2_ROOTFS_POST_BUILD_SCRIPT="board/minnowboard-max/post-build.sh"
+BR2_ROOTFS_POST_IMAGE_SCRIPT="board/minnowboard-max/post-image.sh"
# Linux headers same as kernel, a 4.4 series
BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_4=y
+BR2_PACKAGE_HOST_DOSFSTOOLS=y
+BR2_PACKAGE_HOST_GENIMAGE=y
# Needed for ethernet
BR2_PACKAGE_LINUX_FIRMWARE=y
@@ -23,3 +26,8 @@ BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/minnowboard-max/linux.config"
# Bootloader
BR2_TARGET_GRUB2=y
BR2_TARGET_GRUB2_X86_64_EFI=y
+
+# Filesystem image
+BR2_TARGET_ROOTFS_EXT2=y
+BR2_TARGET_ROOTFS_EXT2_4=y
+# BR2_TARGET_ROOTFS_TAR is not set
--
2.7.0
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