LFS-RPM/lfs.sh

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#!/bin/bash
#-----------------------------------------------------------------------------
# Title: lfs.sh
# Date: 2019-05-22
# Version: 1.0
# Author: baho-utot@columbus.rr.com
# Options:
#-----------------------------------------------------------------------------
# Copyright 2019 Baho Utot
#-----------------------------------------------------------------------------
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
#-----------------------------------------------------------------------------
# Dedicated to Elizabeth my cat of 20 years, Euthanasia on 2019-05-16
#-----------------------------------------------------------------------------
set -o errexit # exit if error...insurance ;)
set -o nounset # exit if variable not initalized
set +h # disable hashall
#-----------------------------------------------------------------------------
# Master variables
PRGNAME=${0##*/} # script name minus the path
TOPDIR=${PWD} # parent directory
PARENT=/usr/src/LFS-RPM # rpm build directory
USER=lfs # build user
LFS=/mnt/lfs # build area
#-----------------------------------------------------------------------------
# Common support functions
function die {
local _red="\\033[1;31m"
local _normal="\\033[0;39m"
[ -n "$*" ] && printf "${_red}$*${_normal}\n"
false
exit 1
}
function msg {
printf "%s\n" "${1}"
return
}
function msg_line {
printf "%s" "${1}"
return
}
function msg_failure {
local _red="\\033[1;31m"
local _normal="\\033[0;39m"
printf "${_red}%s${_normal}\n" "FAILURE"
exit 2
}
function msg_success {
local _green="\\033[1;32m"
local _normal="\\033[0;39m"
printf "${_green}%s${_normal}\n" "SUCCESS"
return
}
function msg_log {
printf "\n%s\n\n" "${1}" >> ${_logfile} 2>&1
return
}
function end_run {
local _green="\\033[1;32m"
local _normal="\\033[0;39m"
printf "${_green}%s${_normal}\n" "Run Complete"
return
}
#-----------------------------------------------------------------------------
# sanity check
[ -v LFS ] || die "LFS environment variable missing/not set"
[ -d ${LFS}/${PARENT} ] || die "${LFS}${PARENT} directory missing"
cd ${LFS}${PARENT}
su --login ${USER} <<- "EOF"
source ~/.bashrc
cd /mnt/lfs/usr/src/LFS-RPM
./tools.sh
EOF
msg_line " Unmounting Virtual Kernel File Systems: "
mountpoint -q ${LFS}/run && umount ${LFS}/run
mountpoint -q ${LFS}/sys && umount ${LFS}/sys
mountpoint -q ${LFS}/proc && umount ${LFS}/proc
mountpoint -q ${LFS}/dev/pts && umount ${LFS}/dev/pts
mountpoint -q ${LFS}/dev && umount ${LFS}/dev
msg_success
msg_line " Changing file ownership: "
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chown -R root:root ${LFS}
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msg_success
msg_line " Preparing Virtual Kernel File Systems: "
[ -d ${LFS}/dev ] || mkdir -p ${LFS}/dev
[ -d ${LFS}/proc ] || mkdir -p ${LFS}/proc
[ -d ${LFS}/sys ] || mkdir -p ${LFS}/sys
[ -d ${LFS}/run ] || mkdir -p ${LFS}/run
[ -e ${LFS}/dev/console ] || mknod -m 600 ${LFS}/dev/console c 5 1
[ -e ${LFS}/dev/null ] || mknod -m 666 ${LFS}/dev/null c 1 3
msg_success
msg_line " Mounting Virtual Kernel File Systems: "
mountpoint -q ${LFS}/dev || mount --bind /dev ${LFS}/dev
mountpoint -q ${LFS}/dev/pts || mount -t devpts devpts ${LFS}/dev/pts -o gid=5,mode=620
mountpoint -q ${LFS}/proc || mount -t proc proc ${LFS}/proc
mountpoint -q ${LFS}/sys || mount -t sysfs sysfs ${LFS}/sys
mountpoint -q ${LFS}/run || mount -t tmpfs tmpfs ${LFS}/run
[ -h ${LFS}/dev/shm ] && mkdir -p ${LFS}/$(readlink ${LFS}/dev/shm)
msg_success
chroot "$LFS" /tools/bin/env -i \
HOME=/root \
TERM="$TERM" \
PS1='(lfs chroot) \u:\w\$ ' \
PATH=/bin:/usr/bin:/sbin:/usr/sbin:/tools/bin \
/tools/bin/bash --login +h -c "cd ${PARENT};./base.sh"
msg_line " Unmounting Virtual Kernel File Systems: "
mountpoint -q ${LFS}/run && umount ${LFS}/run
mountpoint -q ${LFS}/sys && umount ${LFS}/sys
mountpoint -q ${LFS}/proc && umount ${LFS}/proc
mountpoint -q ${LFS}/dev/pts && umount ${LFS}/dev/pts
mountpoint -q ${LFS}/dev && umount ${LFS}/dev
msg_success
end_run