Add Joliet file system to the ISO

Joliet ensures correct file names capitalization on operating systems that support Joliet but not support Rock Ridge.

Implements #45 (closed).

archiso/mkarchiso

@@ -4,29 +4,49 @@
 
 set -e -u
 
-export LANG=C
+# Control the environment
+umask 0022
+export LANG="C"
+export SOURCE_DATE_EPOCH="${SOURCE_DATE_EPOCH:-"$(date +%s)"}"
 
-app_name=${0##*/}
-arch=$(uname -m)
+# mkarchiso defaults
+app_name="${0##*/}"
 pkg_list=()
 run_cmd=""
 quiet="y"
-pacman_conf="/etc/pacman.conf"
-iso_label="ARCH_$(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"
+img_name="${app_name}.iso"
 sfs_mode="sfs"
 sfs_comp="xz"
-gpg_key=
+gpg_key=""
+
+# profile defaults
+profile=""
+iso_name="${app_name}"
+iso_label="${app_name^^}"
+iso_publisher="${app_name}"
+iso_application="${app_name} iso"
+iso_version=""
+install_dir="${app_name}"
+arch="$(uname -m)"
+pacman_conf="/etc/pacman.conf"
+bootmodes=()
+
 
 # Show an INFO message
 # $1: message string
 _msg_info() {
     local _msg="${1}"
-    echo "[mkarchiso] INFO: ${_msg}"
+    [[ "${quiet}" == "y" ]] || printf '[%s] INFO: %s\n' "${app_name}" "${_msg}"
+
+}
+
+# Show a WARNING message
+# $1: message string
+_msg_warning() {
+    local _msg="${1}"
+    printf '\n[%s] WARNING: %s\n\n' "${app_name}" "${_msg}" >&2
 }
 
 # Show an ERROR message then exit with status
@@ -35,83 +55,73 @@ _msg_info() {
 _msg_error() {
     local _msg="${1}"
     local _error=${2}
-    echo
-    echo "[mkarchiso] ERROR: ${_msg}"
-    echo
-    if [[ ${_error} -gt 0 ]]; then
+    printf '\n[%s] ERROR: %s\n\n' "${app_name}" "${_msg}" >&2
+    if (( _error > 0 )); then
         exit "${_error}"
     fi
 }
 
 _chroot_init() {
-    mkdir -p ${work_dir}/airootfs
+    mkdir -p -- "${airootfs_dir}"
     _pacman base syslinux
 }
 
 _chroot_run() {
-    eval arch-chroot ${work_dir}/airootfs "${run_cmd}"
+    eval -- arch-chroot "${airootfs_dir}" "${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" "${work_dir}/mnt/airootfs"
+    mkdir -p -- "${work_dir}/mnt/airootfs"
+    _msg_info "Mounting '${airootfs_dir}.img' on '${work_dir}/mnt/airootfs'"
+    mount -- "${airootfs_dir}.img" "${work_dir}/mnt/airootfs"
     _msg_info "Done!"
 }
 
 _umount_airootfs() {
     _msg_info "Unmounting '${work_dir}/mnt/airootfs'"
-    umount -d "${work_dir}/mnt/airootfs"
+    umount -d -- "${work_dir}/mnt/airootfs"
     _msg_info "Done!"
-    rmdir "${work_dir}/mnt/airootfs"
+    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: ${sfs_mode}"
-    echo "    -c <comp_type>   Set SquashFS compression type (gzip, lzma, lzo, xz, zstd)"
-    echo "                     Default: '${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"
+_usage () {
+    IFS='' read -r -d '' usagetext <<ENDUSAGETEXT || true
+usage ${app_name} [options] command <command options>
+ general options:
+    -B <profile_dir> Directory of the archiso profile to build
+    -p PACKAGE(S)    Package(s) to install, can be used multiple times
+    -C <file>        Config file for pacman.
+                     Default: '${pacman_conf}'
+    -L <label>       Set a label for the disk
+                     Default: '${iso_label}'
+    -P <publisher>   Set a publisher for the disk
+                     Default: '${iso_publisher}'
+    -A <application> Set an application name for the disk
+                     Default: '${iso_application}'
+    -D <install_dir> Set an install_dir. All files will by located here.
+                     Default: '${install_dir}'
+                     NOTE: Max 8 characters, use only [a-z0-9]
+    -w <work_dir>    Set the working directory
+                     Default: '${work_dir}'
+    -o <out_dir>     Set the output directory
+                     Default: '${out_dir}'
+    -s <sfs_mode>    Set SquashFS image mode (img or sfs)
+                     img: prepare airootfs.sfs for dm-snapshot usage
+                     sfs: prepare airootfs.sfs for overlayfs usage
+                     Default: '${sfs_mode}'
+    -c <comp_type>   Set SquashFS compression type (gzip, lzma, lzo, xz, zstd)
+                     Default: '${sfs_comp}'
+    -v               Enable verbose output
+    -h               This message
+ commands:
+   build_profile
+      build an iso image from a profile
+ENDUSAGETEXT
+    printf '%s\n' "${usagetext}"
     exit "${1}"
 }
 
@@ -119,7 +129,7 @@ _usage ()
 # $1: init | install | run | prepare | iso
 _show_config () {
     local _mode="$1"
-    echo
+    printf '\n'
     _msg_info "Configuration settings"
     _msg_info "                  Command:   ${command_name}"
     _msg_info "             Architecture:   ${arch}"
@@ -147,18 +157,17 @@ _show_config () {
             _msg_info "         Disk application:   ${iso_application}"
             ;;
     esac
-    echo
+    printf '\n'
 }
 
 # Install desired packages to airootfs
-_pacman ()
-{
-    _msg_info "Installing packages to '${work_dir}/airootfs/'..."
+_pacman () {
+    _msg_info "Installing packages to '${airootfs_dir}/'..."
 
     if [[ "${quiet}" = "y" ]]; then
-        pacstrap -C "${pacman_conf}" -c -G -M "${work_dir}/airootfs" "$@" &> /dev/null
+        pacstrap -C "${pacman_conf}" -c -G -M -- "${airootfs_dir}" "$@" &> /dev/null
     else
-        pacstrap -C "${pacman_conf}" -c -G -M "${work_dir}/airootfs" "$@"
+        pacstrap -C "${pacman_conf}" -c -G -M -- "${airootfs_dir}" "$@"
     fi
 
     _msg_info "Packages installed successfully!"
@@ -168,86 +177,84 @@ _pacman ()
 _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
+    # Delete all files in /boot
+    if [[ -d "${airootfs_dir}/boot" ]]; then
+        find "${airootfs_dir}/boot" -mindepth 1 -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
+    if [[ -d "${airootfs_dir}/var/lib/pacman" ]]; then
+        find "${airootfs_dir}/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
+    if [[ -d "${airootfs_dir}/var/lib/pacman/sync" ]]; then
+        find "${airootfs_dir}/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
+    if [[ -d "${airootfs_dir}/var/cache/pacman/pkg" ]]; then
+        find "${airootfs_dir}/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
+    if [[ -d "${airootfs_dir}/var/log" ]]; then
+        find "${airootfs_dir}/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
+    if [[ -d "${airootfs_dir}/var/tmp" ]]; then
+        find "${airootfs_dir}/var/tmp" -mindepth 1 -delete
     fi
     # Delete package pacman related files.
-    find "${work_dir}" \( -name "*.pacnew" -o -name "*.pacsave" -o -name "*.pacorig" \) -delete
+    find "${work_dir}" \( -name '*.pacnew' -o -name '*.pacsave' -o -name '*.pacorig' \) -delete
     _msg_info "Done!"
+    # Create an empty /etc/machine-id
+    printf '' > "${work_dir}/airootfs/etc/machine-id"
 }
 
 # 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
+    if [[ ! -e "${airootfs_dir}" ]]; then
+        _msg_error "The path '${airootfs_dir}' does not exist" 1
     fi
 
     _msg_info "Creating ext4 image of 32GiB..."
-    truncate -s 32G "${work_dir}/airootfs.img"
-    local _qflag=""
+    truncate -s 32G -- "${airootfs_dir}.img"
     if [[ "${quiet}" == "y" ]]; then
-        _qflag="-q"
+        mkfs.ext4 -q -O '^has_journal,^resize_inode' -E 'lazy_itable_init=0' -m 0 -F -- "${airootfs_dir}.img"
+    else
+        mkfs.ext4 -O '^has_journal,^resize_inode' -E 'lazy_itable_init=0' -m 0 -F -- "${airootfs_dir}.img"
     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 "${work_dir}/airootfs.img" &> /dev/null
+    tune2fs -c 0 -i 0 -- "${airootfs_dir}.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/"
-    chown root:root "${work_dir}/mnt/airootfs/"
+    _msg_info "Copying '${airootfs_dir}/' to '${work_dir}/mnt/airootfs/'..."
+    cp -aT -- "${airootfs_dir}/" "${work_dir}/mnt/airootfs/"
+    chown root:root -- "${work_dir}/mnt/airootfs/"
     _msg_info "Done!"
     _umount_airootfs
-    mkdir -p "${work_dir}/iso/${install_dir}/${arch}"
+    mkdir -p -- "${isofs_dir}/${install_dir}/${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}/${arch}/airootfs.sfs" -noappend \
+        mksquashfs "${airootfs_dir}.img" "${isofs_dir}/${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 \
+        mksquashfs "${airootfs_dir}.img" "${isofs_dir}/${install_dir}/${arch}/airootfs.sfs" -noappend \
             -comp "${sfs_comp}"
     fi
     _msg_info "Done!"
-    rm "${work_dir}/airootfs.img"
+    rm -- "${airootfs_dir}.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
+    if [[ ! -e "${airootfs_dir}" ]]; then
+        _msg_error "The path '${airootfs_dir}' does not exist" 1
     fi
 
-    mkdir -p "${work_dir}/iso/${install_dir}/${arch}"
+    mkdir -p -- "${isofs_dir}/${install_dir}/${arch}"
     _msg_info "Creating SquashFS image, this may take some time..."
     if [[ "${quiet}" = "y" ]]; then
-        mksquashfs "${work_dir}/airootfs" "${work_dir}/iso/${install_dir}/${arch}/airootfs.sfs" -noappend \
+        mksquashfs "${airootfs_dir}" "${isofs_dir}/${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 \
+        mksquashfs "${airootfs_dir}" "${isofs_dir}/${install_dir}/${arch}/airootfs.sfs" -noappend \
             -comp "${sfs_comp}"
     fi
     _msg_info "Done!"
@@ -255,44 +262,293 @@ _mkairootfs_sfs () {
 
 _mkchecksum () {
     _msg_info "Creating checksum file for self-test..."
-    cd "${work_dir}/iso/${install_dir}/${arch}"
+    cd -- "${isofs_dir}/${install_dir}/${arch}"
     sha512sum airootfs.sfs > airootfs.sha512
-    cd "${OLDPWD}"
+    cd -- "${OLDPWD}"
     _msg_info "Done!"
 }
 
 _mksignature () {
     _msg_info "Creating signature file..."
-    cd "${work_dir}/iso/${install_dir}/${arch}"
+    cd -- "${isofs_dir}/${install_dir}/${arch}"
     gpg --detach-sign --default-key "${gpg_key}" airootfs.sfs
-    cd "${OLDPWD}"
+    cd -- "${OLDPWD}"
     _msg_info "Done!"
 }
 
-command_pkglist () {
-    _show_config pkglist
+# Helper function to run functions only one time.
+_run_once() {
+    if [[ ! -e "${work_dir}/build.${1}" ]]; then
+        "$1"
+        touch "${work_dir}/build.${1}"
+    fi
+}
 
-    _msg_info "Creating a list of installed packages on live-enviroment..."
-    pacman -Q --sysroot "${work_dir}/airootfs" > \
-        "${work_dir}/iso/${install_dir}/pkglist.${arch}.txt"
-    _msg_info "Done!"
+# Set up custom pacman.conf with current cache directories.
+_make_pacman_conf() {
+    local _cache_dirs
+    _cache_dirs="$(pacman-conf CacheDir)"
+    sed -r "s|^#?\\s*CacheDir.+|CacheDir    = ${_cache_dirs[*]//$'\n'/ }|g" \
+        "${pacman_conf}" > "${work_dir}/pacman.conf"
+}
 
+# Prepare working directory and copy custom airootfs files (airootfs)
+_make_custom_airootfs() {
+    mkdir -m 755 -- "${airootfs_dir}"
+
+    local passwd=()
+    if [[ -d "${profile}/airootfs" ]]; then
+        cp -af --no-preserve=ownership -- "${profile}/airootfs/." "${airootfs_dir}"
+
+        [[ -e "${airootfs_dir}/etc/shadow" ]] && chmod -f 0400 -- "${airootfs_dir}/etc/shadow"
+        [[ -e "${airootfs_dir}/etc/gshadow" ]] && chmod -f 0400 -- "${airootfs_dir}/etc/gshadow"
+
+        # Set up user home directories and permissions
+        if [[ -e "${airootfs_dir}/etc/passwd" ]]; then
+            while IFS=':' read -a passwd -r; do
+                [[ "${passwd[5]}" == '/' ]] && continue
+                [[ -z "${passwd[5]}" ]] && continue
+
+                if [[ -d "${airootfs_dir}${passwd[5]}" ]]; then
+                    chown -hR -- "${passwd[2]}:${passwd[3]}" "${airootfs_dir}${passwd[5]}"
+                    chmod -f 0750 -- "${airootfs_dir}${passwd[5]}"
+                else
+                    install -d -m 0750 -o "${passwd[2]}" -g "${passwd[3]}" -- "${airootfs_dir}${passwd[5]}"
+                fi
+             done < "${airootfs_dir}/etc/passwd"
+        fi
+    fi
 }
 
-# Create an ISO9660 filesystem from "iso" directory.
-command_iso () {
-    local _iso_efi_boot_args=()
+# Packages (airootfs)
+_make_packages() {
+    if [[ -n "${gpg_key}" ]]; then
+        exec {ARCHISO_GNUPG_FD}<>"${work_dir}/pubkey.gpg"
+        export ARCHISO_GNUPG_FD
+    fi
+    _pacman "${pkg_list[@]}"
+    if [[ -n "${gpg_key}" ]]; then
+        exec {ARCHISO_GNUPG_FD}<&-
+        unset ARCHISO_GNUPG_FD
+    fi
+}
 
-    if [[ ! -f "${work_dir}/iso/isolinux/isolinux.bin" ]]; then
-         _msg_error "The file '${work_dir}/iso/isolinux/isolinux.bin' does not exist." 1
+# Customize installation (airootfs)
+_make_customize_airootfs() {
+    local passwd=()
+    if [[ -e "${profile}/airootfs/etc/passwd" ]]; then
+        while IFS=':' read -a passwd -r; do
+            if [[ "${passwd[5]}" == '/' ]]; then
+                continue
+            fi
+            cp -RdT --preserve=mode,timestamps,links -- "${airootfs_dir}/etc/skel" "${airootfs_dir}${passwd[5]}"
+            chown -hR -- "${passwd[2]}:${passwd[3]}" "${airootfs_dir}${passwd[5]}"
+
+        done < "${profile}/airootfs/etc/passwd"
     fi
-    if [[ ! -f "${work_dir}/iso/isolinux/isohdpfx.bin" ]]; then
-         _msg_error "The file '${work_dir}/iso/isolinux/isohdpfx.bin' does not exist." 1
+
+    if [[ -e "${airootfs_dir}/root/customize_airootfs.sh" ]]; then
+        _msg_warning "customize_airootfs.sh is deprecated! Support for it will be removed in a future archiso version."
+        local run_cmd="/root/customize_airootfs.sh"
+        local work_dir="${work_dir}/${arch}"
+        command_run
+        rm -- "${airootfs_dir}/root/customize_airootfs.sh"
     fi
+}
 
-    # If exists, add an EFI "El Torito" boot image (FAT filesystem) to ISO-9660 image.
-    if [[ -f "${work_dir}/iso/EFI/archiso/efiboot.img" ]]; then
-        _iso_efi_boot_args+=(
+# Set up boot loaders
+_make_bootmodes() {
+    local bootmode
+    for bootmode in "${bootmodes[@]}"; do
+        if typeset -f "_make_boot_${bootmode}" &> /dev/null; then
+            _run_once "_make_boot_${bootmode}"
+        else
+            _msg_error "${bootmode} is not a valid boot mode" 1
+        fi
+    done
+}
+
+# Prepare kernel/initramfs ${install_dir}/boot/
+_make_boot_on_iso() {
+    mkdir -p -- "${isofs_dir}/${install_dir}/boot/${arch}"
+    install -m 0644 -- "${airootfs_dir}/boot/archiso.img" "${isofs_dir}/${install_dir}/boot/${arch}/"
+    install -m 0644 -- "${airootfs_dir}/boot/vmlinuz-linux" "${isofs_dir}/${install_dir}/boot/${arch}/"
+    if [[ -e "${airootfs_dir}/boot/intel-ucode.img" ]]; then
+        install -m 0644 -- "${airootfs_dir}/boot/intel-ucode.img" "${isofs_dir}/${install_dir}/boot/"
+        mkdir -p "${isofs_dir}/${install_dir}/boot/licenses/intel-ucode/"
+        install -m 0644 -- "${airootfs_dir}/usr/share/licenses/intel-ucode/"* \
+            "${isofs_dir}/${install_dir}/boot/licenses/intel-ucode/"
+    fi
+    if [[ -e "${airootfs_dir}/boot/amd-ucode.img" ]]; then
+        install -m 0644 -- "${airootfs_dir}/boot/amd-ucode.img" "${isofs_dir}/${install_dir}/boot/"
+        mkdir -p "${isofs_dir}/${install_dir}/boot/licenses/amd-ucode/"
+        install -m 0644 -- "${airootfs_dir}/usr/share/licenses/amd-ucode/"* \
+            "${isofs_dir}/${install_dir}/boot/licenses/amd-ucode/"
+    fi
+}
+
+# Prepare /${install_dir}/boot/syslinux
+_make_boot_bios.syslinux.mbr() {
+    mkdir -p "${isofs_dir}/${install_dir}/boot/syslinux"
+    for _cfg in "${profile}/syslinux/"*.cfg; do
+        sed "s|%ARCHISO_LABEL%|${iso_label}|g;
+             s|%INSTALL_DIR%|${install_dir}|g;
+             s|%ARCH%|${arch}|g" \
+             "${_cfg}" > "${isofs_dir}/${install_dir}/boot/syslinux/${_cfg##*/}"
+    done
+    if [[ -e "${profile}/syslinux/splash.png" ]]; then
+        install -m 0644 -- "${profile}/syslinux/splash.png" "${isofs_dir}/${install_dir}/boot/syslinux/"
+    fi
+    install -m 0644 -- "${airootfs_dir}/usr/lib/syslinux/bios/"*.c32 "${isofs_dir}/${install_dir}/boot/syslinux/"
+    install -m 0644 -- "${airootfs_dir}/usr/lib/syslinux/bios/lpxelinux.0" "${isofs_dir}/${install_dir}/boot/syslinux/"
+    install -m 0644 -- "${airootfs_dir}/usr/lib/syslinux/bios/memdisk" "${isofs_dir}/${install_dir}/boot/syslinux/"
+
+    _make_boot_on_iso
+    _uname_r=$(file -b "${isofs_dir}/${install_dir}/boot/${arch}/vmlinuz-linux" | awk 'f{print;f=0} /version/{f=1}' RS=' ')
+
+    mkdir -p "${isofs_dir}/${install_dir}/boot/syslinux/hdt"
+    gzip -c -9 "${airootfs_dir}/usr/share/hwdata/pci.ids" > \
+        "${isofs_dir}/${install_dir}/boot/syslinux/hdt/pciids.gz"
+    gzip -c -9 "${airootfs_dir}/usr/lib/modules/${_uname_r}/modules.alias" > \
+        "${isofs_dir}/${install_dir}/boot/syslinux/hdt/modalias.gz"
+
+    # Add other aditional/extra files to ${install_dir}/boot/
+    if [[ -e "${airootfs_dir}/boot/memtest86+/memtest.bin" ]]; then
+        # rename for PXE: https://wiki.archlinux.org/index.php/Syslinux#Using_memtest
+        install -m 0644 -- "${airootfs_dir}/boot/memtest86+/memtest.bin" "${isofs_dir}/${install_dir}/boot/memtest"
+        mkdir -p "${isofs_dir}/${install_dir}/boot/licenses/memtest86+/"
+        install -m 0644 -- "${airootfs_dir}/usr/share/licenses/common/GPL2/license.txt" \
+            "${isofs_dir}/${install_dir}/boot/licenses/memtest86+/"
+    fi
+}
+
+# Prepare /isolinux
+_make_boot_bios.syslinux.eltorito() {
+    mkdir -p "${isofs_dir}/isolinux"
+    sed "s|%ARCHISO_LABEL%|${iso_label}|g;
+         s|%INSTALL_DIR%|${install_dir}|g;
+         s|%ARCH%|${arch}|g" \
+         "${profile}/isolinux/isolinux.cfg" > "${isofs_dir}/isolinux/isolinux.cfg"
+    install -m 0644 -- "${airootfs_dir}/usr/lib/syslinux/bios/isolinux.bin" "${isofs_dir}/isolinux/"
+    install -m 0644 -- "${airootfs_dir}/usr/lib/syslinux/bios/isohdpfx.bin" "${isofs_dir}/isolinux/"
+    install -m 0644 -- "${airootfs_dir}/usr/lib/syslinux/bios/ldlinux.c32" "${isofs_dir}/isolinux/"
+
+    # isolinux.cfg loads syslinux.cfg
+    _run_once _make_boot_bios.syslinux.mbr
+}
+
+# Prepare /EFI on ISO-9660
+_make_efi() {
+    mkdir -p "${isofs_dir}/EFI/BOOT"
+    install -m 0644 -- "${airootfs_dir}/usr/lib/systemd/boot/efi/systemd-bootx64.efi" \
+        "${isofs_dir}/EFI/BOOT/BOOTx64.EFI"
+
+    mkdir -p "${isofs_dir}/loader/entries"
+    install -m 0644 -- "${profile}/efiboot/loader/loader.conf" "${isofs_dir}/loader/"
+
+    sed "s|%ARCHISO_LABEL%|${iso_label}|g;
+         s|%INSTALL_DIR%|${install_dir}|g;
+         s|%ARCH%|${arch}|g" \
+        "${profile}/efiboot/loader/entries/archiso-x86_64-usb.conf" > \
+        "${isofs_dir}/loader/entries/archiso-x86_64.conf"
+
+    # edk2-shell based UEFI shell
+    # shellx64.efi is picked up automatically when on /
+    if [[ -e "${airootfs_dir}/usr/share/edk2-shell/x64/Shell_Full.efi" ]]; then
+        install -m 0644 -- "${airootfs_dir}/usr/share/edk2-shell/x64/Shell_Full.efi" "${isofs_dir}/shellx64.efi"
+    fi
+}
+
+# Prepare kernel/initramfs on efiboot.img
+_make_boot_on_fat() {
+    mkdir -p "${work_dir}/efiboot/EFI/archiso"
+    install -m 0644 -- "${airootfs_dir}/boot/vmlinuz-linux" "${work_dir}/efiboot/EFI/archiso/"
+    install -m 0644 -- "${isofs_dir}/${install_dir}/boot/${arch}/archiso.img" "${work_dir}/efiboot/EFI/archiso/"
+    if [[ -e "${airootfs_dir}/boot/intel-ucode.img" ]]; then
+        install -m 0644 -- "${airootfs_dir}/boot/intel-ucode.img" "${work_dir}/efiboot/EFI/archiso/"
+    fi
+    if [[ -e "${airootfs_dir}/boot/amd-ucode.img" ]]; then
+        install -m 0644 -- "${airootfs_dir}/boot/amd-ucode.img" "${work_dir}/efiboot/EFI/archiso/"
+    fi
+}
+
+# Prepare efiboot.img::/EFI for EFI boot mode
+_make_boot_uefi-x64.systemd-boot.esp() {
+    mkdir -p "${isofs_dir}/EFI/archiso"
+    mkfs.fat -C -n ARCHISO_EFI "${isofs_dir}/EFI/archiso/efiboot.img" 65536
+
+    mkdir -p "${work_dir}/efiboot"
+    mount "${isofs_dir}/EFI/archiso/efiboot.img" "${work_dir}/efiboot"
+
+    mkdir -p "${work_dir}/efiboot/EFI/BOOT"
+    install -m 0644 -- "${airootfs_dir}/usr/lib/systemd/boot/efi/systemd-bootx64.efi" \
+        "${work_dir}/efiboot/EFI/BOOT/BOOTx64.EFI"
+
+    mkdir -p "${work_dir}/efiboot/loader/entries"
+    install -m 0644 -- "${profile}/efiboot/loader/loader.conf" "${work_dir}/efiboot/loader/"
+
+    sed "s|%ARCHISO_LABEL%|${iso_label}|g;
+         s|%INSTALL_DIR%|${install_dir}|g;
+         s|%ARCH%|${arch}|g" \
+        "${profile}/efiboot/loader/entries/archiso-x86_64-cd.conf" > \
+        "${work_dir}/efiboot/loader/entries/archiso-x86_64.conf"
+
+    # shellx64.efi is picked up automatically when on /
+    if [[ -e "${airootfs_dir}/usr/share/edk2-shell/x64/Shell_Full.efi" ]]; then
+        install -m 0644 -- "${airootfs_dir}/usr/share/edk2-shell/x64/Shell_Full.efi" "${work_dir}/efiboot/shellx64.efi"
+    fi
+
+    # Copy kernel and initramfs
+    _make_boot_on_fat
+
+    umount -d "${work_dir}/efiboot"
+}
+
+# Prepare efiboot.img::/EFI for "El Torito" EFI boot mode
+_make_boot_uefi-x64.systemd-boot.eltorito() {
+    _run_once _make_boot_uefi-x64.systemd-boot.esp
+    # Set up /EFI on ISO-9660
+    _run_once _make_efi
+}
+
+# Build airootfs filesystem image
+_make_prepare() {
+    if [[ "${sfs_mode}" == "sfs" ]]; then
+        _mkairootfs_sfs
+    else
+        _mkairootfs_img
+    fi
+    _mkchecksum
+    if [[ "${gpg_key}" ]]; then
+      _mksignature
+    fi
+}
+
+# Build ISO
+_make_iso() {
+    local xorrisofs_options=()
+
+    if [[ "${quiet}" == "y" ]]; then
+        xorrisofs_options+=('-quiet')
+    fi
+    # shellcheck disable=SC2076
+    if [[ " ${bootmodes[*]} " =~ ' bios.syslinux.' ]]; then
+        if [[ ! -f "${isofs_dir}/isolinux/isolinux.bin" ]]; then
+            _msg_error "The file '${isofs_dir}/isolinux/isolinux.bin' does not exist." 1
+        fi
+        if [[ ! -f "${isofs_dir}/isolinux/isohdpfx.bin" ]]; then
+            _msg_error "The file '${isofs_dir}/isolinux/isohdpfx.bin' does not exist." 1
+        fi
+        xorrisofs_options+=(
+            '-eltorito-boot' 'isolinux/isolinux.bin'
+            '-eltorito-catalog' 'isolinux/boot.cat'
+            '-no-emul-boot' '-boot-load-size' '4' '-boot-info-table'
+            '-isohybrid-mbr' "${isofs_dir}/isolinux/isohdpfx.bin"
+        )
+    fi
+    # shellcheck disable=SC2076
+    if [[ " ${bootmodes[*]} " =~ ' uefi-x64.systemd-boot.' ]]; then
+        xorrisofs_options+=(
             '-eltorito-alt-boot'
             '-e' 'EFI/archiso/efiboot.img'
             '-no-emul-boot'
@@ -300,47 +556,109 @@ command_iso () {
         )
     fi
 
-    _show_config iso
-
-    mkdir -p "${out_dir}"
     _msg_info "Creating ISO image..."
-    local _qflag=""
-    if [[ "${quiet}" == "y" ]]; then
-        xorriso -as mkisofs -quiet \
+    xorriso -as mkisofs \
             -iso-level 3 \
             -full-iso9660-filenames \
-            -joliet -joliet-long \
+            -joliet \
+            -joliet-long \
             -rational-rock \
             -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[@]}" \
+            -preparer "prepared by ${app_name}" \
+            "${xorrisofs_options[@]}" \
             -output "${out_dir}/${img_name}" \
-            "${work_dir}/iso/"
+            "${isofs_dir}/"
+    _msg_info "Done! | $(du -h -- "${out_dir}/${img_name}")"
+}
+
+# Read profile's values from profiledef.sh
+_read_profile () {
+    if [[ -z "${profile}" ]]; then
+        _msg_error "No profile specified!" 1
+    fi
+    if [[ ! -d "${profile}" ]]; then
+        _msg_error "Profile '${profile}' does not exist!" 1
+    elif [[ ! -e "${profile}/profiledef.sh" ]]; then
+        _msg_error "Profile '${profile}' is missing 'profiledef.sh'!" 1
     else
-        xorriso -as mkisofs \
-            -iso-level 3 \
-            -full-iso9660-filenames \
-            -joliet -joliet-long \
-            -rational-rock \
-            -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/"
+        # Source profile's variables
+        # shellcheck source=configs/releng/profiledef.sh
+        . "${profile}/profiledef.sh"
+        cd -- "${profile}"
+
+        # Resolve paths
+        packages="$(realpath -- "${profile}/packages.${arch}")"
+        pacman_conf="$(realpath -- "${pacman_conf}")"
+
+        # Enumerate packages
+        [[ -e "${packages}" ]] || _msg_error "File '${packages}' does not exist!" 1
+        mapfile -t pkg_list < <(sed '/^[[:blank:]]*#.*/d;s/#.*//;/^[[:blank:]]*$/d' "${packages}")
+        if (( ${#pkg_list[@]} == 0 )); then
+            _msg_error "'${packages}' does not list any packages!" 1
+        fi
+
+        cd -- "${OLDPWD}"
     fi
-    _msg_info "Done! | $(ls -sh "${out_dir}/${img_name}")"
+}
+
+_set_up_directories() {
+    local directory
+    for directory in "${work_dir}" "${out_dir}" "${work_dir}/${arch}" "${isofs_dir}" "${isofs_dir}/${install_dir}"; do
+        [[ -d "${directory}" ]] || mkdir -m 0755 -- "${directory}"
+    done
+}
+
+_print_settings() {
+    _msg_info "${app_name} configuration settings"
+    _msg_info "    Command:                   ${command_name}"
+    _msg_info "    Working directory:         ${work_dir}"
+    _msg_info "    Output directory:          ${out_dir}"
+    _msg_info "    GPG key:                   ${gpg_key:-None}"
+    _msg_info "Profile configuration settings"
+    _msg_info "    Profile:                   ${profile}"
+    _msg_info "    Architecture:              ${arch}"
+    _msg_info "    Image name:                ${img_name}"
+    _msg_info "    Disk label:                ${iso_label}"
+    _msg_info "    Disk publisher:            ${iso_publisher}"
+    _msg_info "    Disk application:          ${iso_application}"
+    _msg_info "    Installation directory:    ${install_dir}"
+    _msg_info "    Pacman config file:        ${pacman_conf}"
+    _msg_info "    Packages:                  ${pkg_list[*]}"
+    _msg_info "    Boot modes:                ${bootmodes[*]}"
+}
+
+_export_gpg_publickey() {
+    if [[ -n "${gpg_key}" ]]; then
+        gpg --batch --output "${work_dir}/pubkey.gpg" --export "${gpg_key}"
+    fi
+}
+
+
+_make_pkglist() {
+    _msg_info "Creating a list of installed packages on live-enviroment..."
+    pacman -Q --sysroot "${airootfs_dir}" > "${isofs_dir}/${install_dir}/pkglist.${arch}.txt"
+    _msg_info "Done!"
+}
+
+command_pkglist () {
+    _show_config pkglist
+    _make_pkglist
+}
+
+# Create an ISO9660 filesystem from "iso" directory.
+command_iso () {
+    bootmodes=('bios.syslinux.mbr' 'bios.syslinux.eltorito')
+
+    # If exists, add an EFI "El Torito" boot image (FAT filesystem) to ISO-9660 image.
+    if [[ -f "${isofs_dir}/EFI/archiso/efiboot.img" ]]; then
+        bootmodes+=('uefi-x64.systemd-boot.esp' 'uefi-x64.systemd-boot.eltorito')
+    fi
+
+    _show_config iso
+    mkdir -p -- "${out_dir}"
+    _make_iso
 }
 
 # create airootfs.sfs filesystem, and push it in "iso" directory.
@@ -348,15 +666,7 @@ command_prepare () {
     _show_config prepare
 
     _cleanup
-    if [[ "${sfs_mode}" == "sfs" ]]; then
-        _mkairootfs_sfs
-    else
-        _mkairootfs_img
-    fi
-    _mkchecksum
-    if [[ "${gpg_key}" ]]; then
-      _mksignature
-    fi
+    _make_prepare
 }
 
 # Install packages on airootfs.
@@ -366,14 +676,14 @@ command_install () {
         _msg_error "Pacman config file '${pacman_conf}' does not exist" 1
     fi
 
-    if [[ "${#pkg_list[@]}" -eq 0 ]]; then
+    if (( ${#pkg_list[@]} == 0 )); then
         _msg_error "Packages must be specified" 0
         _usage 1
     fi
 
     _show_config install
 
-    _pacman "${pkg_list[@]}"
+    _make_packages
 }
 
 command_init() {
@@ -386,26 +696,45 @@ command_run() {
     _chroot_run
 }
 
-if [[ "${EUID}" -ne 0 ]]; then
-    _msg_error "This script must be run as root." 1
-fi
-
-umask 0022
+command_build_profile() {
+    # Set up essential directory paths
+    airootfs_dir="${work_dir}/${arch}/airootfs"
+    isofs_dir="${work_dir}/iso"
+    # Set ISO file name
+    img_name="${iso_name}-${iso_version}-${arch}.iso"
+
+    _print_settings
+    _run_once _set_up_directories
+    _run_once _make_pacman_conf
+    _run_once _export_gpg_publickey
+    _run_once _make_custom_airootfs
+    _run_once _make_packages
+    _run_once _make_customize_airootfs
+    _run_once _make_pkglist
+    _make_bootmodes
+    _run_once _cleanup
+    _run_once _make_prepare
+    _run_once _make_iso
+}
 
-while getopts 'p:r:C:L:P:A:D:w:o:s:c:g:vh' arg; do
+while getopts 'B:p:r:C:L:P:A:D:w:o:s:c:g:vh' arg; do
     case "${arg}" in
+        B)
+            profile="$(realpath -- "${OPTARG}")"
+            _read_profile
+            ;;
         p)
             read -r -a opt_pkg_list <<< "${OPTARG}"
             pkg_list+=("${opt_pkg_list[@]}")
             ;;
         r) run_cmd="${OPTARG}" ;;
-        C) pacman_conf="${OPTARG}" ;;
+        C) pacman_conf="$(realpath -- "${OPTARG}")" ;;
         L) iso_label="${OPTARG}" ;;
         P) iso_publisher="${OPTARG}" ;;
         A) iso_application="${OPTARG}" ;;
         D) install_dir="${OPTARG}" ;;
-        w) work_dir="${OPTARG}" ;;
-        o) out_dir="${OPTARG}" ;;
+        w) work_dir="$(realpath -- "${OPTARG}")" ;;
+        o) out_dir="$(realpath -- "${OPTARG}")" ;;
         s) sfs_mode="${OPTARG}" ;;
         c) sfs_comp="${OPTARG}" ;;
         g) gpg_key="${OPTARG}" ;;
@@ -418,38 +747,55 @@ while getopts 'p:r:C:L:P:A:D:w:o:s:c:g:vh' arg; do
     esac
 done
 
+if (( EUID != 0 )); then
+    _msg_error "${app_name} must be run as root." 1
+fi
+
 shift $((OPTIND - 1))
 
-if [[ $# -lt 1 ]]; then
+if (( $# < 1 )); then
     _msg_error "No command specified" 0
     _usage 1
 fi
 command_name="${1}"
 
+# Set directory path defaults
+airootfs_dir="${work_dir}/airootfs"
+isofs_dir="${work_dir}/iso"
+
 case "${command_name}" in
     init)
+        _msg_warning "The '${command_name}' command is deprecated!"
         command_init
         ;;
     install)
+        _msg_warning "The '${command_name}' command is deprecated!"
         command_install
         ;;
     run)
+        _msg_warning "The '${command_name}' command is deprecated!"
         command_run
         ;;
     prepare)
+        _msg_warning "The '${command_name}' command is deprecated!"
         command_prepare
         ;;
     pkglist)
+        _msg_warning "The '${command_name}' command is deprecated!"
         command_pkglist
         ;;
     iso)
-        if [[ $# -lt 2 ]]; then
+        _msg_warning "The '${command_name}' command is deprecated!"
+        if (( $# < 2 )); then
             _msg_error "No image specified" 0
             _usage 1
         fi
         img_name="${2}"
         command_iso
         ;;
+    build_profile)
+        command_build_profile
+        ;;
     *)
         _msg_error "Invalid command name '${command_name}'" 0
         _usage 1