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path: root/preparechroot.sh
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#!/bin/bash

source colors.sh

export LFS="$1"

if [ -z "${LFS}" ]; then
	echo -e "${RED}Require first argument as path to LFS build!${RST}"
	exit 1
fi

if [ "${USER}" == "root" ]; then
	echo -e "${GRN}Changing ownership to root...${RST}"
	chown -R root:root "${LFS}"/bin
	chown -R root:root "${LFS}"/etc
	chown -R root:root "${LFS}"/lib
	chown -R root:root "${LFS}"/sbin
	chown -R root:root "${LFS}"/tools
	chown -R root:root "${LFS}"/usr
	chown -R root:root "${LFS}"/var

	case $(uname -m) in
		x86_64) chown -R root:root "${LFS}"/lib64 ;;
	esac

	echo -e "${GRN}Creating virtual kernel filesystem mountpoints...${RST}"
	mkdir -p "${LFS}"/dev
	mkdir -p "${LFS}"/proc
	mkdir -p "${LFS}"/run
	mkdir -p "${LFS}"/sys
	
	echo -e "${GRN}Creating initial device nodes...${RST}"
	mknod -m 600 "${LFS}"/dev/console c 5 1 >/dev/null 2>&1
	mknod -m 666 "${LFS}"/dev/null c 1 3 >/dev/null 2>&1
	
	echo -e "${GRN}Mounting virtual kernel filesystems...${RST}"
	if ! mountpoint "${LFS}"/dev >/dev/null 2>&1; then
		mount -v --bind /dev "${LFS}"/dev
	else
		echo -e "  ${YLW}${LFS}/dev${GRN} is already mounted${RST}"
	fi
	if ! mountpoint "${LFS}"/dev/pts >/dev/null 2>&1; then
		mount -v --bind /dev/pts "${LFS}"/dev/pts
	else
		echo -e "  ${YLW}${LFS}/dev/pts${GRN} is already mounted${RST}"
	fi
	if ! mountpoint "${LFS}"/proc >/dev/null 2>&1; then
		mount -v --bind /proc "${LFS}"/proc
	else
		echo -e "  ${YLW}${LFS}/proc${GRN} is already mounted${RST}"
	fi
	if ! mountpoint "${LFS}"/sys >/dev/null 2>&1; then
		mount -v --bind /sys "${LFS}"/sys
	else
		echo -e "  ${YLW}${LFS}/sys${GRN} is already mounted${RST}"
	fi
	if ! mountpoint "${LFS}"/run >/dev/null 2>&1; then
		mount -v --bind /run "${LFS}"/run
	else
		echo -e "  ${YLW}${LFS}/run${GRN} is already mounted${RST}"
	fi

	if [ -h "${LFS}"/dev/shm ]; then
		mkdir -pv "${LFS}"/"$(readlink "${LFS}"/dev/shm)"
	fi

else
	echo -e "${RED}preparechroot.sh must be ran as ${YLW}root${RED} user!${RST}"
fi