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add patch readme for uConsole_CM4_v3.1_64bit.img

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cuu
2026-08-01 21:56:49 +08:00
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Code/patch/cm4/20260414/README.md Normal file
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# Kernel for uConsole_CM4_v3.1_64bit.img
Kernel source tree:
`https://github.com/cuu/ClockworkPi-linux` branch rpi-6.12.y
Commit hash:
`03436f4117533693d608b10eb4b3965987230b68`
# How to compile the kernel
```
export ARCH=arm64
export CROSS_COMPILE=aarch64-linux-gnu-
export DTS_SUBDIR=broadcom
export IMAGE=Image.gz
export KERNEL=kernel8
make O=build bcm2711_defconfig
make O=build menuconfig
make O=build -j 2 $IMAGE headers modules dtbs V=1
mkdir -p install/boot/overlays
make O=build INSTALL_MOD_PATH=install modules_install
cp build/arch/$ARCH/boot/dts/$DTS_SUBDIR/*.dtb install/boot/
cp build/arch/$ARCH/boot/dts/overlays/*.dtb* install/boot/overlays/
cp arch/${ARCH}/boot/dts/overlays/README install/boot/overlays/
cp build/arch/$ARCH/boot/$IMAGE install/boot/kernel8.img
rm -rf install/lib
mv build/install/lib/ install
rm -rf install.tar.gz
tar zcvf install.tar.gz install
```
## How to package kernel files to a deb file
Use the files produced above
```
VERSION=$(make O=build kernelrelease | sed -n '2p')
DEB_FOLDER=uconsole-kernel-cm4-rpi_$VERSION
mkdir -p $DEB_FOLDER/boot/firmware/overlays
mkdir -p $DEB_FOLDER/usr/src
make O=build INSTALL_MOD_PATH=install modules_install
make O=build INSTALL_HDR_PATH=install headers_install
cp build/arch/$ARCH/boot/dts/$DTS_SUBDIR/*.dtb $DEB_FOLDER/boot/firmware
cp build/arch/$ARCH/boot/dts/overlays/*.dtb* $DEB_FOLDER/boot/firmware/overlays/
cp arch/${ARCH}/boot/dts/overlays/README $DEB_FOLDER/boot/firmware/overlays/
cp build/arch/$ARCH/boot/$IMAGE $DEB_FOLDER/boot/firmware/kernel8.img
rm -rf $DEB_FOLDER/lib
cp -rf build/install/lib/ $DEB_FOLDER
cp build/.config $DEB_FOLDER/boot/config-${VERSION}
cp build/System.map $DEB_FOLDER/boot/System.map-${VERSION}
cp build/arch/$ARCH/boot/$IMAGE $DEB_FOLDER/boot/vmlinuz-${VERSION}
cp -rf build/install/include/ $DEB_FOLDER/usr/src/linux-headers-${VERSION}
rm -rf ${DEB_FOLDER}.tar.gz
tar zcvf ${DEB_FOLDER}.tar.gz ${DEB_FOLDER}
```