Shell script to setup system with new kernel

 

This is a small script helping in setting up a new kernel. It copies files from the Linux kernel source directory and builds the matching initramfs file.

 

#!/bin/sh
#
set -x
if [ $(dirname $PWD) != '/usr/src' ]
then
	echo ""
	echo "Please change directory to a one with Linux kernel sources"
	exit 1
fi

version=$(basename $PWD |awk -F\- '{print $2}')


ls boot/vmlinuz-${version}-* 2> /dev/null && \
	build=$(ls -1 /boot/vmlinuz-${version}-*| sort -n | awk -F\- '{print $3}') || \
	build=1

release=${version}-${build}
cp System.map /boot/System.map-${release}
cp arch/x86/boot/bzImage /boot/vmlinuz-${release}
mkinitrd /boot/initramfs-${release}.img ${version}

grub-mkconfig > /boot/grub/grub.cfg