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Read it first : https://github.com/android-rpi/local_manifests # Build Kernel $ sudo apt install gcc-arm-linux-gnueabihf libssl-dev $ cd kernel/arpi $ ARCH=arm scripts/kconfig/merge_config.sh arch/arm/configs/bcm2711_defconfig kernel/configs/android-base.config kernel/configs/android-recommended.config $ ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- make zImage $ ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- make dtbs # Install python mako module $ sudo apt install python-mako # Build Android source Continue build referring to http://source.android.com/source/building.html $ source build/envsetup.sh $ lunch rpi4-eng $ make ramdisk systemimage vendorimage Use -j[n] option with make, if build host has a good number of CPU cores. # Prepare sd card Partitions of the card should be set-up like followings. p1 128MB for boot : Do fdisk, set W95 FAT32(LBA) & Bootable type, mkfs.vfat p2 768MB for /system : Do fdisk, new primary partition p3 128MB for /vendor : Do fdisk, new primary partition p4 remainings for /data : Do fdisk, mkfs.ext4 Set volume label of /data partition as userdata : use -L option for mkfs.ext4, and -n option for mkfs.vfat # Write system & vendor partition $ cd out/target/product/rpi4 $ sudo dd if=system.img of=/dev/<p2> bs=1M $ sudo dd if=vendor.img of=/dev/<p3> bs=1M # Copy kernel & ramdisk to BOOT partition device/arpi/rpi4/boot/* to p1:/ kernel/arpi/arch/arm/boot/zImage to p1:/ kernel/arpi/arch/arm/boot/dts/bcm2711-rpi-4-b.dtb to p1:/ kernel/arpi/arch/arm/boot/dts/overlays/vc4-kms-v3d-pi4.dtbo to p1:/overlays/vc4-kms-v3d-pi4.dtbo out/target/product/rpi4/ramdisk.img to p1:/
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Device build-config for Raspberry Pi 4
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