mirror of
https://gitlab.alpinelinux.org/alpine/aports.git
synced 2026-04-02 04:11:41 +02:00
2edc638259
add 1MB offset due to partition table within dd count value, so it is taken into account in any cases (min or computed value).
74 lines
2.1 KiB
Bash
74 lines
2.1 KiB
Bash
build_rpi_blobs() {
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for i in raspberrypi-bootloader-common raspberrypi-bootloader; do
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apk fetch --root "$APKROOT" --quiet --stdout "$i" | tar -C "${DESTDIR}" -zx --strip=1 boot/
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done
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}
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rpi_gen_cmdline() {
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echo "modules=loop,squashfs,sd-mod,usb-storage quiet ${kernel_cmdline}"
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}
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rpi_gen_config() {
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local arm_64bit=0
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case "$ARCH" in
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aarch64) arm_64bit=1;;
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esac
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cat <<-EOF
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# do not modify this file as it will be overwritten on upgrade.
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# create and/or modify usercfg.txt instead.
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# https://www.raspberrypi.com/documentation/computers/config_txt.html
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kernel=boot/vmlinuz-rpi
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initramfs boot/initramfs-rpi
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arm_64bit=$arm_64bit
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include usercfg.txt
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EOF
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}
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build_rpi_config() {
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rpi_gen_cmdline > "${DESTDIR}"/cmdline.txt
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rpi_gen_config > "${DESTDIR}"/config.txt
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}
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section_rpi_config() {
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[ "$hostname" = "rpi" ] || return 0
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build_section rpi_config $( (rpi_gen_cmdline ; rpi_gen_config) | checksum )
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build_section rpi_blobs
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}
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profile_rpi() {
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profile_base
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title="Raspberry Pi"
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desc="First generation Pis including Zero/W (armhf).
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Pi 2 to Pi 3+ generations (armv7).
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Pi 3 to Pi 5 generations (aarch64)."
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image_ext="tar.gz"
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arch="aarch64 armhf armv7"
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kernel_flavors="rpi"
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kernel_cmdline="console=tty1"
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initfs_features="base squashfs mmc usb kms dhcp https"
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hostname="rpi"
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grub_mod=
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}
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create_image_imggz() {
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MIN_IMG_SIZE=129 # minimum FAT16 partition size in MB to cross 4k cluster size boundary
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sync "$DESTDIR"
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local imgfile="${OUTDIR}/${output_filename%.gz}"
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local image_size=$(du -L -k -s "$DESTDIR" | awk '{print int(($1 + 8192) / 1024)}' )
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dd if=/dev/zero of="$imgfile" bs=1M count=$((1+( image_size > $MIN_IMG_SIZE ? image_size : $MIN_IMG_SIZE ))) # Min size +1MB for partition table
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echo 'start=2048, type=6, bootable' | sfdisk "$imgfile" # create partition table with FAT16 at standard 2048 sector (1MB offset)
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mkfs.vfat -n PIBOOT -F 16 --offset 2048 "$imgfile"
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mcopy -s -i "$imgfile"@@2048s "$DESTDIR"/* "$DESTDIR"/.alpine-release ::
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echo "Compressing $imgfile..."
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pigz -v -f -9 "$imgfile" || gzip -f -9 "$imgfile"
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}
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profile_rpiimg() {
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profile_rpi
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title="Raspberry Pi Disk Image"
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image_name="alpine-rpi"
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image_ext="img.gz"
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}
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