lubs

   1 #!/usr/bin/env bash
   2
   3 set -e -u
   4
   5 export LANG=C
   6
   7
   8 arch=amd64
   9 script_path=$(readlink -f ${0%/*})
  10 work_dir="${script_path}/work"
  11 cache_dir="${work_dir}/cache"
  12 bootfiles_dir="${work_dir}/bootfiles"
  13 channels_dir="${script_path}/channels"
  14 isolinux_dir="${script_path}/isolinux"
  15 out_dir="${script_path}/out"
  16 codename="focal"
  17 mirror="http://ftp.jaist.ac.jp/pub/Linux/ubuntu/"
  18
  19 os_name="Ubuntu"
  20 iso_name="ubuntu"
  21 iso_label="${os_name}_${codename}_${arch}"
  22 iso_publisher='Fascode Network <https://fascode.net>'
  23 iso_application="${os_name} Live/Rescue CD"
  24 iso_version="${codename}-$(date +%Y.%m.%d)"
  25 iso_filename="${iso_name}-${iso_version}-${arch}.iso"
  26
  27 channel_name="serene"
  28
  29
  30 # Show an INFO message
  31 # _msg_info <message>
  32 _msg_info() {
  33     local _msg="${@}"
  34     "${script_path}/echo_color"  -t 36 "[LUBS Core]" /! -t 32 "INFO:" "/#" -t 0 "${_msg}"
  35 }
  36
  37 # Show an ERROR message then exit with status
  38 # _msg_error <message> <exit code>
  39 _msg_error() {
  40     local _msg="${1}"
  41     local _error=${2}
  42     "${script_path}/echo_color" -t 36 "[LUBS Core]" /! -t 31 "ERROR:" "/#" -t 0 "${_msg}" >&2
  43     if [[ ! ${_error} = 0 ]]; then
  44         exit ${_error}
  45     fi
  46 }
  47
  48 # Helper function to run make_*() only one time.
  49 run_once() {
  50     local name
  51
  52     if [[ "run_bootfiles" == "$1" ]]; then
  53         name="$2"
  54     else
  55         name="$1"
  56     fi
  57
  58     if [[ ! -e "${work_dir}/build.${name}" ]]; then
  59         _msg_info "$(echo $name | sed "s@_@ @g") is starting."
  60
  61         if [[ "run_bootfiles" == "$1" ]]; then
  62             "$1" "$2"
  63         else
  64             "$1"
  65         fi
  66
  67         _msg_info "$(echo $name | sed "s@_@ @g") was done!"
  68         touch "${work_dir}/build.${name}"
  69     fi
  70 }
  71
  72 run_cmd() {
  73     "${script_path}/lubs-chroot" "${work_dir}/airootfs" "${@}"
  74 }
  75
  76 run_bootfiles() {
  77     cd "${bootfiles_dir}"
  78     "$1"
  79     cd - > /dev/null
  80 }
  81
  82 _apt_install() {
  83     run_cmd apt-get --yes install ${@}
  84 }
  85
  86
  87
  88
  89 prepare_build() {
  90     if [[ ${EUID} -ne 0 ]]; then
  91         _msg_error "This script must be run as root." 1
  92     fi
  93
  94     [[ ! -d "${work_dir}" ]] && mkdir -p "${work_dir}"
  95     [[ ! -d "${out_dir}" ]] && mkdir -p "${out_dir}"
  96
  97     local mount
  98     for mount in $(mount | awk '{print $3}' | grep $(realpath ${work_dir}) | sort -r); do
  99         _msg_info "Unmounting ${mount}"
 100         umount "${mount}"
 101     done
 102
 103 }
 104
 105
 106 make_basefs() {
 107     if [[ ! -d "${cache_dir}/${codename}" ]]; then
 108         _msg_info "Installing Ubuntu to '${cache_dir}/${codename}'..."
 109         mkdir -p "${cache_dir}/${codename}"
 110         debootstrap --arch=${arch} --include=linux-image-generic  --verbose --merged-usr "${codename}" "${cache_dir}/${codename}" ${mirror}
 111         _msg_info "${codename} installed successfully!"
 112     else
 113         _msg_info "${codename} cache is found."
 114     fi
 115
 116     rm -rf "${work_dir}/airootfs" && mkdir -p "${work_dir}/airootfs"
 117     _msg_info "copy base files from '${cache_dir}/${codename}' to '${work_dir}/airootfs'..."
 118     rsync  -au "${cache_dir}/${codename}/" "${work_dir}/airootfs"
 119     echo 'PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:${PATH}' >> "${work_dir}/airootfs/etc/bash.bashrc"
 120     run_cmd apt-get update
 121     # run_cmd apt-get upgrade
 122 }
 123
 124 make_sourcelist() {
 125     cp ${script_path}/source.list.d/${codename}/* ${work_dir}/airootfs/etc/apt
 126     run_cmd apt-get update
 127
 128     if [[ -f "${channels_dir}/${channel_name}/${channel_name}.list" ]] && [[ -f "${channels_dir}/${channel_name}/${channel_name}-list_key" ]]; then
 129         source ${channels_dir}/${channel_name}/${channel_name}-list_key
 130
 131         if [[ ! -f "${cache_dir}/${channel_name}.key" ]]; then
 132             wget -q -O ${cache_dir}/${channel_name}.key "${url}"
 133         fi
 134
 135         _apt_install gnupg
 136         cp ${cache_dir}/${channel_name}.key ${work_dir}/airootfs/${channel_name}.key
 137         run_cmd apt-key add ${channel_name}.key
 138         cp ${channels_dir}/${channel_name}/${channel_name}.list ${work_dir}/airootfs/etc/apt/sources.list.d
 139         run_cmd apt-get update
 140     fi
 141 }
 142
 143 make_systemd() {
 144     _apt_install systemd-sysv
 145     run_cmd dbus-uuidgen > /etc/machine-id
 146     run_cmd ln -fs /etc/machine-id /var/lib/dbus/machine-id
 147 }
 148
 149 make_packages() {
 150     grep -h -v ^'#' "${channels_dir}/share/packages.x86_64" | grep -v "^$" > "${work_dir}/airootfs/installpkglist"
 151     grep -h -v ^'#' "${channels_dir}/${channel_name}/packages.x86_64" | grep -v "^$" >> "${work_dir}/airootfs/installpkglist"
 152     run_cmd env -i bash -c 'DEBIAN_FRONTEND=noninteractive apt-get --yes install $(echo $(<installpkglist))'
 153     rm ${work_dir}/airootfs/installpkglist
 154 }
 155
 156 make_config() {
 157     # Locales
 158     run_cmd env -i bash -c 'DEBIAN_FRONTEND=noninteractive LANG=en_US.UTF-8 LC_ALL=C LANGUAGE=en_US.UTF-8 dpkg-reconfigure locales'
 159
 160     # resolvconf
 161     run_cmd env -i bash -c 'DEBIAN_FRONTEND=noninteractive dpkg-reconfigure resolvconf'
 162
 163     # NetworkManager
 164     cp ${channels_dir}/share/airootfs/etc/NetworkManager/NetworkManager.conf ${work_dir}/airootfs/etc/NetworkManager/NetworkManager.conf
 165
 166     # Timezone
 167     #run_cmd echo -ne "UTC" > '/etc/timezone'
 168     #run_cmd dpkg-reconfigure -f noninteractive tzdata
 169
 170     run_cmd env -i bash -c 'DEBIAN_FRONTEND=noninteractive dpkg-reconfigure network-manager'
 171     run_cmd truncate -s 0 /etc/machine-id
 172 }
 173
 174 make_customize_airootfs() {
 175     # Overwrite airootfs with customize_airootfs.
 176     local copy_airootfs
 177
 178     copy_airootfs() {
 179         local i
 180         for i in "${@}"; do
 181             local _dir="${1%/}"
 182             if [[ -d "${_dir}" ]]; then
 183                 cp -af "${_dir}"/* "${work_dir}/airootfs"
 184             fi
 185         done
 186     }
 187
 188     copy_airootfs "${channels_dir}/share/airootfs"
 189     copy_airootfs "${channels_dir}/${channel_name}/airootfs"
 190
 191     if [[ -f "${work_dir}/airootfs/root/customize_airootfs.sh" ]]; then
 192         chmod 755 "${work_dir}/airootfs/root/customize_airootfs.sh"
 193         run_cmd "/root/customize_airootfs.sh"
 194     fi
 195 }
 196
 197 make_clean() {
 198     run_cmd apt-get clean
 199     run_cmd apt-get --yes autoremove
 200     run_cmd rm -rf "/tmp/* ~/.bash_history"
 201 }
 202
 203 make_bootfiles() {
 204     run_cmd update-initramfs -c -k all
 205     _apt_install memtest86+
 206     mkdir -p ${bootfiles_dir}/{casper,isolinux,install}
 207     cp ${work_dir}/airootfs/boot/vmlinuz-*-*-generic ${bootfiles_dir}/casper/vmlinuz
 208     cp ${work_dir}/airootfs/boot/initrd.img-*-*-generic ${bootfiles_dir}/casper/initrd
 209     cp ${work_dir}/airootfs/boot/memtest86+.bin ${bootfiles_dir}/install/memtest86+
 210
 211     if [[ ! -f "${cache_dir}/memtest86-usb.zip" ]]; then
 212         wget -O ${cache_dir}/memtest86-usb.zip https://www.memtest86.com/downloads/memtest86-usb.zip
 213     fi
 214
 215     (unzip -p ${cache_dir}/memtest86-usb.zip memtest86-usb.img > ${bootfiles_dir}/install/memtest86)
 216 }
 217
 218 make_grubcfg() {
 219     touch "${bootfiles_dir}/ubuntu"
 220     cp ${isolinux_dir}/grub.cfg ${bootfiles_dir}/isolinux/grub.cfg
 221 }
 222
 223 make_manifest() {
 224     run_cmd dpkg-query -W --showformat='${Package} ${Version}\n' | tee ${bootfiles_dir}/casper/filesystem.manifest
 225     cp -v ${bootfiles_dir}/casper/filesystem.manifest "${bootfiles_dir}/casper/filesystem.manifest-desktop"
 226     sed -i '/ubiquity/d' "${bootfiles_dir}/casper/filesystem.manifest-desktop"
 227     sed -i '/casper/d' "${bootfiles_dir}/casper/filesystem.manifest-desktop"
 228     sed -i '/discover/d' "${bootfiles_dir}/casper/filesystem.manifest-desktop"
 229     sed -i '/laptop-detect/d' "${bootfiles_dir}/casper/filesystem.manifest-desktop"
 230     sed -i '/os-prober/d' "${bootfiles_dir}/casper/filesystem.manifest-desktop"
 231 }
 232
 233 make_squashfs() {
 234     mksquashfs "${work_dir}/airootfs" "${bootfiles_dir}/casper/filesystem.squashfs"
 235     printf $(du -sx --block-size=1 "${work_dir}/airootfs" | cut -f1) > ${bootfiles_dir}/casper/filesystem.size
 236 }
 237
 238 make_deifnes() {
 239     cp ${isolinux_dir}/README.diskdefines ${bootfiles_dir}/README.diskdefines
 240 }
 241
 242 make_isolinux() {
 243     grub-mkstandalone \
 244         --format=x86_64-efi \
 245         --output=isolinux/bootx64.efi \
 246         --locales="" \
 247         --fonts="" \
 248         "boot/grub/grub.cfg=isolinux/grub.cfg"
 249     (
 250         cd isolinux && \
 251         dd if=/dev/zero of=efiboot.img bs=1M count=10 && \
 252         sudo mkfs.vfat efiboot.img && \
 253         LC_CTYPE=C mmd -i efiboot.img efi efi/boot && \
 254         LC_CTYPE=C mcopy -i efiboot.img ./bootx64.efi ::efi/boot/
 255     )
 256     grub-mkstandalone \
 257         --format=i386-pc \
 258         --output=isolinux/core.img \
 259         --install-modules="linux16 linux normal iso9660 biosdisk memdisk search tar ls" \
 260         --modules="linux16 linux normal iso9660 biosdisk search" \
 261         --locales="" \
 262         --fonts="" \
 263         "boot/grub/grub.cfg=isolinux/grub.cfg"
 264     cat /usr/lib/grub/i386-pc/cdboot.img isolinux/core.img > isolinux/bios.img
 265 }
 266
 267 make_md5sum() {
 268     /bin/bash -c "(find . -type f -print0 | xargs -0 md5sum | grep -v "\./md5sum.txt" > md5sum.txt)"
 269 }
 270
 271 make_iso() {
 272     xorriso \
 273         -as mkisofs \
 274         -iso-level 3 \
 275         -full-iso9660-filenames \
 276         -volid "${iso_label}" \
 277         -appid "${iso_application}" \
 278         -publisher "${iso_publisher}" \
 279         -preparer "prepared by LUBS" \
 280         -eltorito-boot boot/grub/bios.img \
 281         -no-emul-boot \
 282         -boot-load-size 4 \
 283         -boot-info-table \
 284         --eltorito-catalog boot/grub/boot.cat \
 285         --grub2-boot-info \
 286         --grub2-mbr /usr/lib/grub/i386-pc/boot_hybrid.img \
 287         -eltorito-alt-boot \
 288         -e EFI/efiboot.img \
 289         -no-emul-boot \
 290         -append_partition 2 0xef isolinux/efiboot.img \
 291         -output "${out_dir}/${iso_filename}" \
 292         -graft-points \
 293             "." \
 294             /boot/grub/bios.img=isolinux/bios.img \
 295             /EFI/efiboot.img=isolinux/efiboot.img
 296 }
 297
 298 make_checksum() {
 299     cd ${out_dir}
 300     _msg_info "Creating md5 checksum ..."
 301     md5sum "${iso_filename}" > "${iso_filename}.md5"
 302
 303     _msg_info "Creating sha256 checksum ..."
 304     sha256sum "${iso_filename}" > "${iso_filename}.sha256"
 305     cd - > /dev/null 2>&1
 306 }
 307
 308 prepare_build
 309 run_once make_basefs
 310 run_once make_sourcelist
 311 run_once make_systemd
 312 run_once make_packages
 313 run_once make_config
 314 run_once make_customize_airootfs
 315 run_once make_clean
 316 run_once make_bootfiles
 317 run_once make_grubcfg
 318 run_once make_manifest
 319 run_once make_squashfs
 320 run_once make_deifnes
 321 run_once run_bootfiles make_isolinux
 322 run_once run_bootfiles make_md5sum
 323 run_once run_bootfiles make_iso
 324 run_once make_checksum