3ca55b2c31
* Full-disk encryption (FDE) has been deprecated for devices launching with Android 10 or higher but now it's been removed in Android 13. * File-based encryption (FBE) i.e. replacing this with 'fileencryption=aes-256-xts' works but there's some performance issues with it especially when running from slow storage devices such as sdcards that are used on Raspberry Pi. Recovery also can't decrypt FBE which is another issue. * There's no longer need to resize userdata partition to leave space for crypto footer.
72 lines
1.3 KiB
Bash
Executable File
72 lines
1.3 KiB
Bash
Executable File
#!/bin/bash
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#
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# Copyright (C) 2021-2022 KonstaKANG
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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VERSION=RaspberryVanillaAOSP13
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DATE=$(date +%Y%m%d)
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IMGNAME=${VERSION}-${DATE}-rpi4.img
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IMGSIZE=7
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OUTDIR=$(pwd | sed 's/\/device\/brcm\/rpi4$//')/out/target/product/rpi4
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echo "Creating image file ${OUTDIR}/${IMGNAME}..."
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sudo dd if=/dev/zero of="${OUTDIR}/${IMGNAME}" bs=1M count=$(echo "${IMGSIZE}*1024" | bc)
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sync
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echo "Creating partitions..."
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(
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echo o
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echo n
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echo p
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echo 1
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echo
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echo +128M
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echo n
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echo p
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echo 2
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echo
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echo +2048M
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echo n
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echo p
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echo 3
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echo
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echo +256M
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echo n
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echo p
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echo
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echo
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echo t
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echo 1
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echo c
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echo a
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echo 1
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echo w
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) | sudo fdisk "${OUTDIR}/${IMGNAME}"
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sync
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LOOPDEV=$(sudo kpartx -av "${OUTDIR}/${IMGNAME}" | awk 'NR==1{ sub(/p[0-9]$/, "", $3); print $3 }')
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if [ -z ${LOOPDEV} ]; then
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echo "Unable to find loop device!"
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exit 1
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fi
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echo "Image mounted as /dev/${LOOPDEV}"
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sleep 1
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echo "Copying boot..."
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sudo dd if=${OUTDIR}/boot.img of=/dev/mapper/${LOOPDEV}p1 bs=1M
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echo "Copying system..."
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sudo dd if=${OUTDIR}/system.img of=/dev/mapper/${LOOPDEV}p2 bs=1M
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echo "Copying vendor..."
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sudo dd if=${OUTDIR}/vendor.img of=/dev/mapper/${LOOPDEV}p3 bs=1M
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echo "Creating userdata..."
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sudo mkfs.ext4 /dev/mapper/${LOOPDEV}p4 -I 512 -L userdata
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sync
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sudo kpartx -d "/dev/${LOOPDEV}"
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echo "Done, created ${OUTDIR}/${IMGNAME}!"
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exit 0
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