Prepares environment variables. Downloads and kernel sources and compile tools. Compiles kernel along with modules and installs these on RPI's SD card. Actions on the following page are performed for default kernel settings : https://www.raspberrypi.org/documentation/linux/kernel/building.md .config file is created in case of custom settings via menuconfig.
Mount boot partition with kernel files (fat32) in /mnt/fat32 Mount root partition with modules (ext4) in /mnt/ext4 Paths can be changed in values BOOT_FAT32_PATH and ROOT_EXT4_PATH. Select for which RPI hardware version should be kernel compiled by changing of value PI_VERSION. Set MENUCONFIG to "1" if you wish to create custom kernel settings. .config file will be created in case of menuconfig. You will be asked wehther re-write any existing .config file or not.
If you will not mount SD card volumes then kernel cannot be obviously installed. It can be fixed easily by mounting volumes and starting this script again. Files may remain in mounting dirs if sd card not mounted.
user/mrholub/kernel-crosscompiling.txt · Last modified: 2017/05/08 19:51 by mrholub