# Step 3 Do kernel compile(sdxprairie-boot.img)
# P.S. you can run 'make kernel 2>&1 | tee kernel.log' to trace kernel compilation output
# Before compile start, let's check the timestamp and type of 'sdxprairie-boot.img'
find . -name sdxprairie-boot.img | xargs ls -l
find . -name sdxprairie-boot.img | xargs file
# ok, let's go
make kernel
# After compilation, let's check the timestamp and type of 'sdxprairie-boot.img'
find . -name sdxprairie-boot.img | xargs ls -l
find . -name sdxprairie-boot.img | xargs file
# P.S. Generated sdxprairie-boot.img will be updated to
# 1. sdxprairie-ota-target-image-ubi/BOOTABLE_IMAGES/boot.img &
# 2. sdxprairie-ota-target-image-ubi/BOOTABLE_IMAGES/recovery.img
md5sum output/sdxprairie-boot.img
md5sum sdxprairie-ota-target-image-ubi/BOOTABLE_IMAGES/*.img