archive/dragora-installer/dragora-installer

   1 #! /bin/sh -
   2 #
   3 # The installer of Dragora GNU/Linux-Libre
   4 #
   5 # Copyright (c) 2019-2023 Matias Fonzo, <selk@dragora.org>.
   6 #
   7 # This program is free software: you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation, either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 # Exit immediately on any error
  21 set -e
  22
  23 PROGRAM="${0##*/}"
  24 TMPDIR="${TMPDIR:-$HOME}"
  25 TMPFILE="${TMPDIR}/${PROGRAM}.${RANDOM-0}$$"
  26 LOCKFILE=/tmp/dragora-installer.lockfile
  27
  28 # Override locale settings
  29 LANG=C
  30 LC_ALL=C
  31 export LANG LC_ALL
  32
  33 unmountFilesystems()
  34 {
  35     for filesystem in \
  36      /media/dragora-root/sys   \
  37      /media/dragora-root/proc  \
  38      /media/dragora-root/dev   \
  39      /media/dragora-root       \
  40      /media/dragora-packages ; \
  41     do
  42         if mountpoint -q "$filesystem"
  43         then
  44             echo ""
  45             echo ""
  46             echo "Unmounting $(findmnt -n -o SOURCE $filesystem) from $filesystem ..."
  47             if ! umount -v -R "$filesystem"
  48             then
  49                 echo "    ^ Doing a lazy unmount for \`${filesystem}' ..."
  50                 umount -v -l "$filesystem"
  51             fi
  52         fi
  53     done
  54     unset -v filesystem
  55 }
  56
  57 chkstatus_or_exit()
  58 {
  59     status=$?
  60
  61     # Clean up temporary files
  62     rm -f -- "$TMPFILE" "$LOCKFILE"
  63
  64     # Clean up temporary subdirectory if 'PRESERVE' is unset or null
  65     test -z "$PRESERVE" && rm -rf -- "$SUBTMPDIR"
  66
  67     # Unmount possible (previously) mounted file systems
  68     unmountFilesystems
  69
  70     if test $status -ne 0
  71     then
  72         printf '%s\n' "" "^ Return status = $status" 1>&2
  73         exit 2;
  74     fi
  75
  76     unset -v status
  77 }
  78
  79 # Sanity checks
  80
  81 if test ! -d "$TMPDIR"
  82 then
  83     echo "${PROGRAM}: \`${TMPDIR}' is not a qualified temporary directory" 1>&2
  84     exit 1;
  85 fi
  86 if test ! -w "$TMPDIR"
  87 then
  88     echo "${PROGRAM}: \`${TMPDIR}' is not a writable temporary directory" 1>&2
  89     exit 1;
  90 fi
  91
  92 trap 'chkstatus_or_exit' EXIT HUP INT QUIT ABRT TERM
  93
  94 umask 077;      # Remove access for all but user.
  95
  96 # Set a lock to allow only one instance of the installer
  97
  98 if ( set -C ; echo ": $PROGRAM - locked" > $LOCKFILE ) 2> /dev/null
  99 then
 100     true
 101 else
 102     if test -e "$LOCKFILE"
 103     then
 104         echo "Only one instance of \`${PROGRAM}' is allowed." 1>&2
 105         exit 1;
 106     else
 107         echo "${PROGRAM}: \`${LOCKFILE}' lock failed." 1>&2
 108         exit 2;
 109     fi
 110 fi
 111
 112 # Remove write permission for group and other
 113 umask 022
 114
 115 # Create subdirectory to store the files produced by the installer
 116
 117 # Default sets to "${HOME}/.dragora-installer"
 118 SUBTMPDIR="${TMPDIR}/.${PROGRAM}"
 119 mkdir -p -- "$SUBTMPDIR"
 120 chmod 700 -- "$SUBTMPDIR"
 121
 122 # Detect and prepare initial list of Linux partition(s)
 123
 124 if fdisk -l | sed -e 's|Linux filesystem|Linux|g' | grep -E -q -m 1 'Linux$'
 125 then
 126     fdisk -l | sed -e 's|Linux filesystem|Linux|g' | grep -E 'Linux$' | \
 127      sort > "${SUBTMPDIR}/partitions"
 128 else
 129     cat 1>&2 << EOF
 130 Linux partitions were not detected.
 131
 132 A Linux partition is required to continue the installation.  You can
 133 use utilities such as fdisk(8), cfdisk(8) or parted(8) to create at
 134 least one Linux partition.  Then run \`${PROGRAM}' again.
 135 EOF
 136     exit 1;
 137 fi
 138
 139 # Determine the maximum size of the terminal to be used on the dialogues
 140
 141 echo "Checking terminal size ..."
 142 LINES="${LINES:-$(tput lines)}"
 143 COLUMNS="${COLUMNS:-$(tput cols)}"
 144
 145 export SUBTMPDIR LINES COLUMNS
 146
 147 dialog --colors \
 148  --backtitle "\\ZbThe installer of Dragora GNU/Linux-Libre 3.0" \
 149  --title "INSTALLER INFORMATION" \
 150  --cr-wrap --msgbox \
 151 "Welcome to \\Z3${PROGRAM}\\Zn.
 152
 153     This program will help you install Dragora 3.0 on your computer.
 154
 155 Use the cursor keys to move around in the installer's menus.
 156
 157 Press \\Z3[Tab]\\Zn to jump to the next option and \
 158 \\Z3[Shift]\\Zn\\Zb\\Z7+\\Zn\\Z3[Tab]\\Zn to jump to the previous one.
 159
 160 Use \\Z3[Space]\\Zn to select or unselect an item, \\Z3[Enter]\\Zn to \
 161 confirm or proceed to the next menu.
 162
 163 You can use \\Z3[Ctrl]\\Zn\\Zb\\Z7+\\Zn\\Z3[C]\\Zn to abort the \
 164 installation at any time.
 165
 166 To quit a dialog (such as the one you are in), press \\Z3[Esc]\\Zn.
 167
 168 " $((LINES - 4)) $((COLUMNS - 8))
 169
 170 # Try to detect and mount the hybrid ISO image, there may be a USB memory
 171 # stick already inserted.  If not, the media menu will be displayed.
 172
 173 mkdir -p -- /media/dragora-packages
 174
 175 if ! blkid -t LABEL="Dragora Packages" > /dev/null
 176 then
 177     dialog --colors \
 178      --backtitle "\\ZbInstallation Medium" \
 179      --title "Pendrive/SDCard/CDROM" \
 180      --cr-wrap --msgbox \
 181 "
 182 Please insert the medium labeled \"Dragora Packages\" and
 183 press \\Z3[Enter]\\Zn to continue.  Otherwise, a media selection
 184 menu will be displayed.
 185 " 9 60
 186     if blkid -t LABEL="Dragora Packages" > /dev/null
 187     then
 188         if ! mountpoint -q /media/dragora-packages
 189         then
 190             mount -v -t iso9660 LABEL="Dragora Packages" \
 191              /media/dragora-packages
 192             echo '/media/dragora-packages/packages' \
 193              > "${SUBTMPDIR}/MediumFound"
 194             sleep 1
 195         fi
 196     else
 197         . @PARTS@MenuMedia
 198     fi
 199 else
 200     if ! mountpoint -q /media/dragora-packages
 201     then
 202         mount -v -t iso9660 LABEL="Dragora Packages" /media/dragora-packages
 203         sleep 2
 204     fi
 205     echo '/media/dragora-packages/packages' > "${SUBTMPDIR}/MediumFound"
 206 fi
 207
 208 # Attempt to unmount possible pre-mounted filesystem(s)
 209 mountpoint -q /media/dragora-root/sys && umount /media/dragora-root/sys
 210 mountpoint -q /media/dragora-root/proc && umount /media/dragora-root/proc
 211 mountpoint -q /media/dragora-root/dev && umount /media/dragora-root/dev
 212
 213 # Clean up possible empty mount-directories
 214 rmdir -- /media/dragora-packages /media/dragora-root 2> /dev/null || true
 215
 216 # Double-check to see the installation directory
 217 if test ! -f "${SUBTMPDIR}/MediumFound"
 218 then
 219    dialog --colors \
 220      --backtitle "\\ZbInstallation Medium" \
 221      --title "MEDIUM NOT FOUND" \
 222      --sleep 5 --cr-wrap --infobox \
 223 "
 224 No means of installation was found to proceed
 225 with the installation of Dragora.
 226
 227 Please check your drives and the directory
 228 containing the software packages...
 229 " 9 49
 230     exit 99;
 231 fi
 232
 233 . @PARTS@MakeSwap;              # Swap devices.
 234 . @PARTS@MakeFS;                # Linux partitions.
 235 . @PARTS@FstabEdit;             # File system table edition (fstab).
 236 . @PARTS@MountRoot;             # Mount root partition for installation.
 237 . @PARTS@FstabMounts;           # Mount rest of file systems from fstab.
 238 . @PARTS@ShowSeries;            # Software series.
 239 . @PARTS@InstallPackages;       # Package installation.
 240 . @PARTS@PostInstall;           # Post-installation.
 241 . @PARTS@SetPassword;           # Password for root.
 242 . @PARTS@MenuBootloader;        # Boot loader installation.
 243 . @PARTS@ConfServices;          # Running services.
 244
 245 if test -e /media/dragora-root/etc/fstab
 246 then
 247     if mountpoint -q /media/dragora-packages
 248     then
 249         umount /media/dragora-packages
 250     fi
 251     if test -s "${SUBTMPDIR}/SeTCDdev"
 252     then
 253         _status=0
 254         dialog --clear --colors \
 255          --title "The Setup for Dragora has been completed" \
 256          --cr-wrap --msgbox \
 257 "
 258 If you are ready, press \\Z3[Enter]\\Zn to eject
 259 the installation disc...
 260 " 8 0 || _status=$?
 261
 262         if test $_status -eq 0
 263         then
 264             cdrom_device="$(cat -- "${SUBTMPDIR}/CDDevice")"
 265
 266             # Try to eject using SCSI commands, fallback on CDROM eject command
 267             eject --scsi "$cdrom_device" || eject --cdrom "$cdrom_device"
 268
 269             dialog \
 270              --title "The Setup for Dragora has been completed" \
 271              --msgbox "\\nPlease remove the installation disc.\\n" 7 44 || true
 272
 273             # Attempt to use the tray close command
 274             eject -t "$cdrom_device" > /dev/null 2>&1 || true
 275         fi
 276         unset -v _status cdrom_device
 277     fi
 278 fi
 279
 280 sync
 281
 282 _status=0
 283
 284 dialog --clear --colors \
 285  --backtitle "\\ZbSystem restart" \
 286  --title "The Setup for Dragora has been completed." \
 287  --cr-wrap --yesno \
 288 "
 289 Would you like to reboot the system now?
 290 " 7 45 || _status=$?
 291
 292 case $_status in
 293 0)
 294     unset -v _status
 295     dialog --clear
 296     unmountFilesystems
 297     exec reboot -d -f
 298     ;;
 299 *)
 300     unset -v _status
 301     unmountFilesystems
 302     echo ""
 303     echo ""
 304     echo ""
 305     echo "Going out to the shell ..."
 306     echo ""
 307     echo ""
 308     exit 0
 309     ;;
 310 esac
 311