Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
branch: master
Fetching contributors…

Cannot retrieve contributors at this time

executable file 419 lines (374 sloc) 13.051 kb
#!/bin/bash
set -e -u
export LANG=C
app_name=${0##*/}
arch=$(uname -m)
pkg_list=""
run_cmd=""
quiet="y"
pacman_conf="/etc/pacman.conf"
export iso_label="ARCH_$(date +%Y%m)"
iso_publisher="Arch Linux <http://www.archlinux.org>"
iso_application="Arch Linux Live/Rescue CD"
install_dir="arch"
work_dir="work"
out_dir="out"
sfs_mode="img"
sfs_comp="xz"
# Show an INFO message
# $1: message string
_msg_info() {
local _msg="${1}"
echo "[mkarchiso] INFO: ${_msg}"
}
# Show an ERROR message then exit with status
# $1: message string
# $2: exit code number (with 0 does not exit)
_msg_error() {
local _msg="${1}"
local _error=${2}
echo
echo "[mkarchiso] ERROR: ${_msg}"
echo
if [[ ${_error} -gt 0 ]]; then
exit ${_error}
fi
}
_chroot_init() {
mkdir -p ${work_dir}/airootfs
_pacman "base syslinux"
}
_chroot_run() {
eval arch-chroot ${work_dir}/airootfs "${run_cmd}"
}
_mount_airootfs() {
trap "_umount_airootfs" EXIT HUP INT TERM
mkdir -p "${work_dir}/mnt/airootfs"
_msg_info "Mounting '${work_dir}/airootfs.img' on '${work_dir}/mnt/airootfs'"
mount "${work_dir}/airootfs.img" "${work_dir}/mnt/airootfs"
_msg_info "Done!"
}
_umount_airootfs() {
_msg_info "Unmounting '${work_dir}/mnt/airootfs'"
umount "${work_dir}/mnt/airootfs"
_msg_info "Done!"
rmdir "${work_dir}/mnt/airootfs"
trap - EXIT HUP INT TERM
}
# Show help usage, with an exit status.
# $1: exit status number.
_usage ()
{
echo "usage ${app_name} [options] command <command options>"
echo " general options:"
echo " -p PACKAGE(S) Package(s) to install, can be used multiple times"
echo " -r <command> Run <command> inside airootfs"
echo " -C <file> Config file for pacman."
echo " Default: '${pacman_conf}'"
echo " -L <label> Set a label for the disk"
echo " Default: '${iso_label}'"
echo " -P <publisher> Set a publisher for the disk"
echo " Default: '${iso_publisher}'"
echo " -A <application> Set an application name for the disk"
echo " Default: '${iso_application}'"
echo " -D <install_dir> Set an install_dir. All files will by located here."
echo " Default: '${install_dir}'"
echo " NOTE: Max 8 characters, use only [a-z0-9]"
echo " -w <work_dir> Set the working directory"
echo " Default: '${work_dir}'"
echo " -o <out_dir> Set the output directory"
echo " Default: '${out_dir}'"
echo " -s <sfs_mode> Set SquashFS image mode (img or sfs)"
echo " img: prepare airootfs.sfs for dm-snapshot usage"
echo " sfs: prepare airootfs.sfs for overlayfs usage"
echo " Default: ${sfs_mode}"
echo " -c <comp_type> Set SquashFS compression type (gzip, lzma, lzo, xz)"
echo " Default: '${sfs_comp}'"
echo " -v Enable verbose output"
echo " -h This message"
echo " commands:"
echo " init"
echo " Make base layout and install base group"
echo " install"
echo " Install all specified packages (-p)"
echo " run"
echo " run command specified by -r"
echo " prepare"
echo " build all images"
echo " pkglist"
echo " make a pkglist.txt of packages installed on airootfs"
echo " iso <image name>"
echo " build an iso image from the working dir"
exit ${1}
}
# Shows configuration according to command mode.
# $1: init | install | run | prepare | iso
_show_config () {
local _mode="$1"
echo
_msg_info "Configuration settings"
_msg_info " Command: ${command_name}"
_msg_info " Architecture: ${arch}"
_msg_info " Working directory: ${work_dir}"
_msg_info " Installation directory: ${install_dir}"
case "${_mode}" in
init)
_msg_info " Pacman config file: ${pacman_conf}"
;;
install)
_msg_info " Pacman config file: ${pacman_conf}"
_msg_info " Packages: ${pkg_list}"
;;
run)
_msg_info " Run command: ${run_cmd}"
;;
prepare)
;;
pkglist)
;;
iso)
_msg_info " Image name: ${img_name}"
_msg_info " Disk label: ${iso_label}"
_msg_info " Disk publisher: ${iso_publisher}"
_msg_info " Disk application: ${iso_application}"
;;
esac
echo
}
# Install desired packages to airootfs
_pacman ()
{
_msg_info "Installing packages to '${work_dir}/airootfs/'..."
if [[ "${quiet}" = "y" ]]; then
pacstrap -C "${pacman_conf}" -c -d -G -M "${work_dir}/airootfs" $* &> /dev/null
else
pacstrap -C "${pacman_conf}" -c -d -G -M "${work_dir}/airootfs" $*
fi
_msg_info "Packages installed successfully!"
}
# Cleanup airootfs
_cleanup () {
_msg_info "Cleaning up what we can on airootfs..."
# Delete initcpio image(s)
if [[ -d "${work_dir}/airootfs/boot" ]]; then
find "${work_dir}/airootfs/boot" -type f -name '*.img' -delete
fi
# Delete kernel(s)
if [[ -d "${work_dir}/airootfs/boot" ]]; then
find "${work_dir}/airootfs/boot" -type f -name 'vmlinuz*' -delete
fi
# Delete pacman database sync cache files (*.tar.gz)
if [[ -d "${work_dir}/airootfs/var/lib/pacman" ]]; then
find "${work_dir}/airootfs/var/lib/pacman" -maxdepth 1 -type f -delete
fi
# Delete pacman database sync cache
if [[ -d "${work_dir}/airootfs/var/lib/pacman/sync" ]]; then
find "${work_dir}/airootfs/var/lib/pacman/sync" -delete
fi
# Delete pacman package cache
if [[ -d "${work_dir}/airootfs/var/cache/pacman/pkg" ]]; then
find "${work_dir}/airootfs/var/cache/pacman/pkg" -type f -delete
fi
# Delete all log files, keeps empty dirs.
if [[ -d "${work_dir}/airootfs/var/log" ]]; then
find "${work_dir}/airootfs/var/log" -type f -delete
fi
# Delete all temporary files and dirs
if [[ -d "${work_dir}/airootfs/var/tmp" ]]; then
find "${work_dir}/airootfs/var/tmp" -mindepth 1 -delete
fi
# Delete package pacman related files.
find "${work_dir}" \( -name "*.pacnew" -o -name "*.pacsave" -o -name "*.pacorig" \) -delete
_msg_info "Done!"
}
# Makes a ext4 filesystem inside a SquashFS from a source directory.
_mkairootfs_img () {
if [[ ! -e "${work_dir}/airootfs" ]]; then
_msg_error "The path '${work_dir}/airootfs' does not exist" 1
fi
_msg_info "Creating ext4 image of 32GiB..."
truncate -s 32G "${work_dir}/airootfs.img"
local _qflag=""
if [[ ${quiet} == "y" ]]; then
_qflag="-q"
fi
mkfs.ext4 ${_qflag} -O ^has_journal,^resize_inode -E lazy_itable_init=0 -m 0 -F "${work_dir}/airootfs.img"
tune2fs -c 0 -i 0 "${work_dir}/airootfs.img" &> /dev/null
_msg_info "Done!"
_mount_airootfs
_msg_info "Copying '${work_dir}/airootfs/' to '${work_dir}/mnt/airootfs/'..."
cp -aT "${work_dir}/airootfs/" "${work_dir}/mnt/airootfs/"
_msg_info "Done!"
_umount_airootfs
mkdir -p "${work_dir}/iso/${install_dir}/${arch}"
_msg_info "Creating SquashFS image, this may take some time..."
if [[ "${quiet}" = "y" ]]; then
mksquashfs "${work_dir}/airootfs.img" "${work_dir}/iso/${install_dir}/${arch}/airootfs.sfs" -noappend -comp "${sfs_comp}" -no-progress &> /dev/null
else
mksquashfs "${work_dir}/airootfs.img" "${work_dir}/iso/${install_dir}/${arch}/airootfs.sfs" -noappend -comp "${sfs_comp}" -no-progress
fi
_msg_info "Done!"
rm ${work_dir}/airootfs.img
}
# Makes a SquashFS filesystem from a source directory.
_mkairootfs_sfs () {
if [[ ! -e "${work_dir}/airootfs" ]]; then
_msg_error "The path '${work_dir}/airootfs' does not exist" 1
fi
mkdir -p "${work_dir}/iso/${install_dir}/${arch}"
_msg_info "Creating SquashFS image, this may take some time..."
if [[ "${quiet}" = "y" ]]; then
mksquashfs "${work_dir}/airootfs" "${work_dir}/iso/${install_dir}/${arch}/airootfs.sfs" -noappend -comp "${sfs_comp}" -no-progress &> /dev/null
else
mksquashfs "${work_dir}/airootfs" "${work_dir}/iso/${install_dir}/${arch}/airootfs.sfs" -noappend -comp "${sfs_comp}" -no-progress
fi
_msg_info "Done!"
}
_mkchecksum () {
_msg_info "Creating checksum file for self-test..."
cd "${work_dir}/iso/${install_dir}/${arch}"
md5sum airootfs.sfs > airootfs.md5
cd ${OLDPWD}
_msg_info "Done!"
}
command_pkglist () {
_show_config pkglist
_msg_info "Creating a list of installed packages on live-enviroment..."
pacman -Sl -r "${work_dir}/airootfs" --config "${pacman_conf}" | \
awk '/\[installed\]$/ {print $1 "/" $2 "-" $3}' > \
"${work_dir}/iso/${install_dir}/pkglist.${arch}.txt"
_msg_info "Done!"
}
# Create an ISO9660 filesystem from "iso" directory.
command_iso () {
local _iso_efi_boot_args=""
if [[ ! -f "${work_dir}/iso/isolinux/isolinux.bin" ]]; then
_msg_error "The file '${work_dir}/iso/isolinux/isolinux.bin' does not exist." 1
fi
if [[ ! -f "${work_dir}/iso/isolinux/isohdpfx.bin" ]]; then
_msg_error "The file '${work_dir}/iso/isolinux/isohdpfx.bin' does not exist." 1
fi
# If exists, add an EFI "El Torito" boot image (FAT filesystem) to ISO-9660 image.
if [[ -f "${work_dir}/iso/EFI/archiso/efiboot.img" ]]; then
_iso_efi_boot_args="-eltorito-alt-boot
-e EFI/archiso/efiboot.img
-no-emul-boot
-isohybrid-gpt-basdat"
fi
_show_config iso
mkdir -p ${out_dir}
_msg_info "Creating ISO image..."
local _qflag=""
if [[ ${quiet} == "y" ]]; then
_qflag="-quiet"
fi
xorriso -as mkisofs ${_qflag} \
-iso-level 3 \
-full-iso9660-filenames \
-volid "${iso_label}" \
-appid "${iso_application}" \
-publisher "${iso_publisher}" \
-preparer "prepared by mkarchiso" \
-eltorito-boot isolinux/isolinux.bin \
-eltorito-catalog isolinux/boot.cat \
-no-emul-boot -boot-load-size 4 -boot-info-table \
-isohybrid-mbr ${work_dir}/iso/isolinux/isohdpfx.bin \
${_iso_efi_boot_args} \
-output "${out_dir}/${img_name}" \
"${work_dir}/iso/"
_msg_info "Done! | $(ls -sh ${out_dir}/${img_name})"
}
# create airootfs.sfs filesystem, and push it in "iso" directory.
command_prepare () {
_show_config prepare
_cleanup
if [[ ${sfs_mode} == "sfs" ]]; then
_mkairootfs_sfs
else
_mkairootfs_img
fi
_mkchecksum
}
# Install packages on airootfs.
# A basic check to avoid double execution/reinstallation is done via hashing package names.
command_install () {
if [[ ! -f "${pacman_conf}" ]]; then
_msg_error "Pacman config file '${pacman_conf}' does not exist" 1
fi
#trim spaces
pkg_list="$(echo ${pkg_list})"
if [[ -z ${pkg_list} ]]; then
_msg_error "Packages must be specified" 0
_usage 1
fi
_show_config install
_pacman "${pkg_list}"
}
command_init() {
_show_config init
_chroot_init
}
command_run() {
_show_config run
_chroot_run
}
if [[ ${EUID} -ne 0 ]]; then
_msg_error "This script must be run as root." 1
fi
while getopts 'p:r:C:L:P:A:D:w:o:s:c:vh' arg; do
case "${arg}" in
p) pkg_list="${pkg_list} ${OPTARG}" ;;
r) run_cmd="${OPTARG}" ;;
C) pacman_conf="${OPTARG}" ;;
L) iso_label="${OPTARG}" ;;
P) iso_publisher="${OPTARG}" ;;
A) iso_application="${OPTARG}" ;;
D) install_dir="${OPTARG}" ;;
w) work_dir="${OPTARG}" ;;
o) out_dir="${OPTARG}" ;;
s) sfs_mode="${OPTARG}" ;;
c) sfs_comp="${OPTARG}" ;;
v) quiet="n" ;;
h|?) _usage 0 ;;
*)
_msg_error "Invalid argument '${arg}'" 0
_usage 1
;;
esac
done
shift $((OPTIND - 1))
if [[ $# -lt 1 ]]; then
_msg_error "No command specified" 0
_usage 1
fi
command_name="${1}"
case "${command_name}" in
init)
command_init
;;
install)
command_install
;;
run)
command_run
;;
prepare)
command_prepare
;;
pkglist)
command_pkglist
;;
iso)
if [[ $# -lt 2 ]]; then
_msg_error "No image specified" 0
_usage 1
fi
img_name="${2}"
command_iso
;;
*)
_msg_error "Invalid command name '${command_name}'" 0
_usage 1
;;
esac
# vim:ts=4:sw=4:et:
Jump to Line
Something went wrong with that request. Please try again.