Run patch boot locally

That's how we can run Magisk's boot_patch.sh on Linux x86 or x64 and patch a boot image for an ARM device

Tested with Magisk v25.2 with FP3

• Get Magisk .apk
• Extract it

Keep in the same folder:

mkdir output
cp assets/boot_patch.sh ./output/boot_patch.sh
cp assets/util_functions.sh ./output/util_functions.sh
cp assets/stub.apk ./output/stub.apk
cp lib/x86_64/libmagiskboot.so ./output/magiskboot
cp lib/armeabi-v7a/libmagisk32.so ./output/magisk32
cp lib/arm64-v8a/libmagisk64.so ./output/magisk64
cp lib/arm64-v8a/libmagiskinit.so ./output/magiskinit

You can delete all the rest.

In util_functions.sh:

• Change function ui_print() to only contain echo "$1"
• Change every getprop command, to adb shell getprop, to go run it on device rather than locally.

You can now run: sh boot_patch.sh boot.img

The outpout file new-boot.img has the exact same sha256 hash as the magisk_patched-*.img, so we can consider it works :)