106 lines
2.6 KiB
Bash
Executable file
106 lines
2.6 KiB
Bash
Executable file
#!/usr/bin/env bash
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# mkbootimg is the property of The Android Open Source Project and licensed under the Apache License, Version 2.0
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# You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
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CMDLINE="root=PARTLABEL=linux loglevel=3"
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VMLINUZ="/boot/efi/vmlinuz-6.1.10-nabu"
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DTB="/boot/efi/dtb-6.1.10-nabu"
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function log() {
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printf "\e[1m\e[92m==>\e[0m \e[1m%s\e[0m\n" "$*"
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}
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function log_err() {
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printf "\e[1m\e[31m==>\e[0m \e[1m%s\e[0m\n" "$*"
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}
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function sigterm_handler() {
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printf "\e[1m\e[31m>\e[0m \e[1m%s\e[0m\n" "Shutdown signal received."
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exit 1
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}
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trap 'trap " " SIGINT SIGTERM SIGHUP; kill 0; wait; sigterm_handler' SIGINT SIGTERM SIGHUP
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which base64 > /dev/null 2>&1 || {
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log_err "base64 not found"
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exit 1
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}
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which curl > /dev/null 2>&1 || {
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log_err "curl not found"
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exit 1
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}
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if which python3 > /dev/null 2>&1; then
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PYTHON="python3"
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elif which python > /dev/null 2>&1 && [[ "$(python -V)" =~ "Python 3" ]]; then
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PYTHON="python"
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else
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log_err "python 3 not found"
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exit 1
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fi
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if which doas > /dev/null 2>&1; then
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SUDO=doas
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elif which sudo > /dev/null 2>&1; then
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SUDO=sudo
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elif [ "$(id -u)" -eq "0" ]; then
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SUDO=""
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else
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log_err "sudo/doas not found"
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fi
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# Begin script
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if [ $# -eq 2 ]; then
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VMLINUZ="$1"
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DTB="$2"
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else
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log "Using default vmlinuz and dtb path"
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log "vmlinuz: $VMLINUZ"
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log "dtb: $DTB"
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fi
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[ -f "$VMLINUZ" ] || {
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log_err "vmlinuz not found at $VMLINUZ"
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exit 1
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}
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[ -f "$DTB" ] || {
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log_err "dtb not found at $DTB"
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exit 1
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}
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[ -r "$VMLINUZ" ] && [ -r "$DTB" ] && SUDO=""
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{ [ -f ./mkbootimg.py ] && [ -f ./generate_gki_certificate.py ]; } || {
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log "Downloading mkbootimg from google"
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curl -s "https://android.googlesource.com/platform/system/tools/mkbootimg/+/refs/heads/main/mkbootimg.py?format=text" \
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| base64 -d \
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| sed "s/from gki.generate_gki_certificate import generate_gki_certificate/from generate_gki_certificate import generate_gki_certificate/g" \
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> mkbootimg.py || ERR="1"
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curl -s "https://android.googlesource.com/platform/system/tools/mkbootimg/+/refs/heads/main/gki/generate_gki_certificate.py?format=text" \
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| base64 -d \
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> generate_gki_certificate.py || ERR="1"
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[[ "$ERR" -eq "1" ]] && {
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log_err "Failed to download mkbootimg"
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exit 1
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}
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}
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$SUDO cat "$VMLINUZ" "$DTB" > zImage || {
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log_err "Failed to create zImage"
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exit 1
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}
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$PYTHON mkbootimg.py --kernel zImage --cmdline "$CMDLINE" --base 0x00000000 --kernel_offset 0x00008000 --tags_offset 0x00000100 --pagesize 4096 --id -o linux.boot.img > /dev/null || {
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log_err "Failed to create boot image"
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rm ./zImage
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exit 1
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}
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rm ./zImage
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rm -r ./__pycache__
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log "Created ./linux.boot.img"
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