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build_rpi_blobs() {
for i in raspberrypi-bootloader-common raspberrypi-bootloader; do
apk fetch --quiet --stdout "$i" | tar -C "${DESTDIR}" -zx --strip=1 boot/ || return 1
done
}
rpi_gen_cmdline() {
echo "modules=loop,squashfs,sd-mod,usb-storage quiet ${kernel_cmdline}"
}
rpi_gen_config() {
local arm_64bit=0
case "$ARCH" in
aarch64) arm_64bit=1;;
esac
cat <<-EOF
# do not modify this file as it will be overwritten on upgrade.
# create and/or modify usercfg.txt instead.
# https://www.raspberrypi.com/documentation/computers/config_txt.html
kernel=boot/vmlinuz-rpi
initramfs boot/initramfs-rpi
arm_64bit=$arm_64bit
include usercfg.txt
EOF
}
build_rpi_config() {
rpi_gen_cmdline > "${DESTDIR}"/cmdline.txt
rpi_gen_config > "${DESTDIR}"/config.txt
}
section_rpi_config() {
[ "$hostname" = "rpi" ] || return 0
build_section rpi_config $( (rpi_gen_cmdline ; rpi_gen_config) | checksum )
build_section rpi_blobs
}
profile_rpi() {
profile_base
title="Raspberry Pi"
desc="First generation Pis including Zero/W (armhf).
Pi 2 to Pi 3+ generations (armv7).
Pi 3 to Pi 5 generations (aarch64)."
image_ext="tar.gz"
arch="aarch64 armhf armv7"
kernel_flavors="rpi"
kernel_cmdline="console=tty1"
initfs_features="base squashfs mmc usb kms dhcp https"
hostname="rpi"
grub_mod=
}
create_image_imggz() {
sync "$DESTDIR"
local image_size=$(du -L -k -s "$DESTDIR" | awk '{print $1 + 8192}' )
local imgfile="${OUTDIR}/${output_filename%.gz}"
dd if=/dev/zero of="$imgfile" bs=1M count=$(( image_size / 1024 ))
mformat -i "$imgfile" -N 0 ::
mcopy -s -i "$imgfile" "$DESTDIR"/* "$DESTDIR"/.alpine-release ::
echo "Compressing $imgfile..."
pigz -v -f -9 "$imgfile" || gzip -f -9 "$imgfile"
}
profile_rpiimg() {
profile_rpi
title="Raspberry Pi Disk Image"
image_name="alpine-rpi"
image_ext="img.gz"
}
build_uboot() {
# FIXME: Fix apk-tools to extract packages directly
local pkg pkgs="$(apk fetch --simulate --root "$APKROOT" --recursive u-boot-all | sed -ne "s/^Downloading \(.*\)\-[0-9].*$/\1/p")"
for pkg in $pkgs; do
[ "$pkg" = "u-boot-all" ] || apk fetch --root "$APKROOT" --stdout $pkg | tar -C "$DESTDIR" -xz usr
done
mkdir -p "$DESTDIR"/u-boot
mv "$DESTDIR"/usr/sbin/update-u-boot "$DESTDIR"/usr/share/u-boot/* "$DESTDIR"/u-boot
rm -rf "$DESTDIR"/usr
}
section_uboot() {
[ -n "$uboot_install" ] || return 0
build_section uboot $ARCH $(apk fetch --root "$APKROOT" --simulate --recursive u-boot-all | sort | checksum)
}
profile_uboot() {
profile_base
title="Generic ARM"
desc="Has default ARM kernel.
Includes the uboot bootloader.
Supports armv7 and aarch64."
image_ext="tar.gz"
arch="aarch64 armv7"
kernel_flavors="lts"
kernel_addons="xtables-addons"
initfs_features="base bootchart ext4 kms mmc nvme raid scsi squashfs usb"
apkovl="genapkovl-dhcp.sh"
hostname="alpine"
uboot_install="yes"
}
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