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configs/pc: refactor to use genimage and grub.cfg

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This simplifies the pc configs and respective post image scripts to use
the shared genimage script and separate grub config files.
Separate grub files are cleaner to maintain and easier to copy and
modify, for example to support booting the pc defconfigs in qemu.

Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Erico Nunes 2017-10-22 15:54:24 +02:00 committed by Thomas Petazzoni
parent 6393b6904b
commit 6fab243237
5 changed files with 20 additions and 27 deletions
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6
board/pc/grub-bios.cfg Normal file
View File

@ -0,0 +1,6 @@
set default="0"
set timeout="5"
menuentry "Buildroot" {
linux /boot/bzImage root=/dev/sda1 rootwait console=tty1
}

6
board/pc/grub-efi.cfg Executable file
View File

@ -0,0 +1,6 @@
set default="0"
set timeout="5"
menuentry "Buildroot" {
linux /bzImage root=/dev/sda2 rootwait console=tty1
}

29
board/pc/post-image.sh
View File

@ -1,35 +1,14 @@
#!/bin/sh
BOARD_DIR="$(dirname $0)"
# Detect boot strategy, EFI or BIOS
if [ -f ${BINARIES_DIR}/efi-part/startup.nsh ]; then
BOOT_TYPE=efi
# grub.cfg needs customization for EFI since the root partition is
# number 2, and bzImage is in the EFI partition (1)
cat >${BINARIES_DIR}/efi-part/EFI/BOOT/grub.cfg <<__EOF__
set default="0"
set timeout="5"
menuentry "Buildroot" {
linux /bzImage root=/dev/sda2 rootwait console=tty1
}
__EOF__
cp -f ${BOARD_DIR}/grub-efi.cfg ${BINARIES_DIR}/efi-part/EFI/BOOT/grub.cfg
else
BOOT_TYPE=bios
cp -f ${BOARD_DIR}/grub-bios.cfg ${TARGET_DIR}/boot/grub/grub.cfg
# Copy grub 1st stage to binaries, required for genimage
cp -f ${HOST_DIR}/lib/grub/i386-pc/boot.img ${BINARIES_DIR}
fi
BOARD_DIR="$(dirname $0)"
GENIMAGE_CFG="${BOARD_DIR}/genimage-${BOOT_TYPE}.cfg"
GENIMAGE_TMP="${BUILD_DIR}/genimage.tmp"
rm -rf "${GENIMAGE_TMP}"
genimage \
--rootpath "${TARGET_DIR}" \
--tmppath "${GENIMAGE_TMP}" \
--inputpath "${BINARIES_DIR}" \
--outputpath "${BINARIES_DIR}" \
--config "${GENIMAGE_CFG}"
exit $?

3
configs/pc_x86_64_bios_defconfig
View File

@ -19,7 +19,8 @@ BR2_TARGET_ROOTFS_EXT2=y
BR2_TARGET_ROOTFS_EXT2_4=y
BR2_TARGET_ROOTFS_EXT2_SIZE="120M"
# BR2_TARGET_ROOTFS_TAR is not set
BR2_ROOTFS_POST_IMAGE_SCRIPT="board/pc/post-image.sh"
BR2_ROOTFS_POST_IMAGE_SCRIPT="board/pc/post-image.sh support/scripts/genimage.sh"
BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/pc/genimage-bios.cfg"
# Linux headers same as kernel, a 4.13 series
BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_13=y

3
configs/pc_x86_64_efi_defconfig
View File

@ -22,7 +22,8 @@ BR2_TARGET_ROOTFS_EXT2=y
BR2_TARGET_ROOTFS_EXT2_4=y
BR2_TARGET_ROOTFS_EXT2_SIZE="120M"
# BR2_TARGET_ROOTFS_TAR is not set
BR2_ROOTFS_POST_IMAGE_SCRIPT="board/pc/post-image.sh"
BR2_ROOTFS_POST_IMAGE_SCRIPT="board/pc/post-image.sh support/scripts/genimage.sh"
BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/pc/genimage-efi.cfg"
# Linux headers same as kernel, a 4.13 series
BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_13=y