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#!/bin/sh
#
# Copyright 1993, 1994, 1999  Patrick Volkerding, Moorhead, Minnesota USA
# Copyright 2001, 2003, 2004  Slackware Linux, Inc., Concord, CA
# Copyright 2006, 2007, 2018, 2021 Patrick Volkerding, Sebeka, Minnesota USA
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is 
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# As always, bug reports, suggestions, etc: volkerdi@slackware.com
#
TMP=/var/log/setup/tmp
if [ ! -d $TMP ]; then
  mkdir -p $TMP
fi
# Wipe the probe md5sum to force rescanning partitions if setup is restarted:
rm -f $TMP/SeTpartition.md5
## FLOPPY? Comment out this obsolete code. We ain't gonna need it.
## Use /tmp on floppy for now:
#/usr/lib/setup/unmigrate.sh
rm -f $TMP/SeT*
# If a keymap was set up, restore that data:
if [ -r $TMP/Pkeymap ]; then
  cp $TMP/Pkeymap $TMP/SeTkeymap
fi
echo "on" > $TMP/SeTcolor # turn on color menus
PATH="$PATH:/usr/lib/setup"
export PATH;
export COLOR=on
dialog --backtitle "Slackware Linux Setup" --infobox "\n
Scanning your system for partition information...\n
\n" 5 55
# In case the machine is full of fast SSDs:
sleep 1
# Before probing, activate any LVM partitions
# that may exist from before the boot:
vgchange -ay 1> /dev/null 2> /dev/null
if probe -l 2> /dev/null | grep -E 'Linux$' 1> /dev/null 2> /dev/null ; then
 probe -l 2> /dev/null | grep -E 'Linux$' | sort | uniq 1> $TMP/SeTplist 2> /dev/null
else
 dialog --title "NO LINUX PARTITIONS DETECTED" \
 --msgbox "There don't seem to be any partitions on this machine of type \
Linux. You'll need to make at least one of these to install Linux. \
To do this, you'll need to leave 'setup', and make the partitions using \
'cfdisk' (MBR partitions) or 'cgdisk' (GPT partitions). For more \
information, read the 'setup' help file from the next menu." 10 64
fi
if [ -d /sys/firmware/efi ]; then
  if ! probe -l 2> /dev/null | grep "EFI System Partition" 1> /dev/null 2> /dev/null ; then
     dialog --title "NO EFI SYSTEM PARTITION DETECTED" \
 --msgbox "This machine appears to be using EFI/UEFI, but no EFI System \
Partition was found. You'll need to make an EFI System Partition in order \
to boot from the hard drive. To do this, leave 'setup', and \
use 'cgdisk' to make a 100MB partition of type EF00. For more information, \
read the 'setup' help file from the next menu." 10 64
  fi
fi
T_PX="/mnt"
echo "$T_PX" > $TMP/SeTT_PX
ROOT_DEVICE="`mount | grep "on / " | cut -f 1 -d ' '`"
echo "$ROOT_DEVICE" > $TMP/SeTrootdev
if mount | grep /var/log/mount 1> /dev/null 2> /dev/null ; then # clear source location:
 # In case of bind mounts, try to unmount them first:
 umount /var/log/mount/dev 2> /dev/null
 umount /var/log/mount/proc 2> /dev/null
 umount /var/log/mount/sys 2> /dev/null
 # Unmount target partition:
 umount /var/log/mount
fi
# Anything mounted on /var/log/mount now is a fatal error:
if mount | grep /var/log/mount 1> /dev/null 2> /dev/null ; then
  echo "Can't umount /var/log/mount. Reboot machine and run setup again."
  exit
fi
# If the mount table is corrupt, the above might not do it, so we will
# try to detect Linux and FAT32 partitions that have slipped by:
if [ -d /var/log/mount/lost+found -o -d /var/log/mount/recycled \
     -o -r /var/log/mount/io.sys ]; then
  echo "Mount table corrupt. Reboot machine and run setup again."
  exit
fi
rm -f /var/log/mount 2> /dev/null
rmdir /var/log/mount 2> /dev/null
mkdir /var/log/mount 2> /dev/null

while [ 0 ]; do

 dialog --title "Slackware Linux Setup (version 15.0)" \
--menu \
"Welcome to Slackware Linux Setup.\n\
Select an option below using the UP/DOWN keys and SPACE or ENTER.\n\
Alternate keys may also be used: '+', '-', and TAB." 18 72 9 \
"HELP" "Read the Slackware Setup HELP file" \
"KEYMAP" "Remap your keyboard if you're not using a US one" \
"ADDSWAP" "Set up your swap partition(s)" \
"TARGET" "Set up your target partitions" \
"SOURCE" "Select source media" \
"SELECT" "Select categories of software to install" \
"INSTALL" "Install selected software" \
"CONFIGURE" "Reconfigure your Linux system" \
"EXIT" "Exit Slackware Linux Setup" 2> $TMP/hdset
 if [ ! $? = 0 ]; then
  rm -f $TMP/hdset $TMP/SeT*
  exit
 fi
 MAINSELECT="`cat $TMP/hdset`"
 rm $TMP/hdset

 # Start checking what to do. Some modules may reset MAINSELECT to run the
 # next item in line.

 if [ "$MAINSELECT" = "HELP" ]; then
  SeTfdHELP
 fi

 if [ "$MAINSELECT" = "KEYMAP" ]; then
  SeTkeymap
  if [ -r $TMP/SeTkeymap ]; then
   MAINSELECT="ADDSWAP" 
  fi
 fi
 
 if [ "$MAINSELECT" = "MAKE TAGS" ]; then
  SeTmaketag
 fi
 
 if [ "$MAINSELECT" = "ADDSWAP" ]; then
  SeTswap
  if [ -r $TMP/SeTswap ]; then
   MAINSELECT="TARGET"
  elif [ -r $TMP/SeTswapskip ]; then
   # Go ahead to TARGET without swap space:
   MAINSELECT="TARGET"
  fi
 fi

 if [ "$MAINSELECT" = "TARGET" ]; then
  SeTpartitions
  SeTEFI
  SeTDOS
  if [ -r $TMP/SeTnative ]; then
   MAINSELECT="SOURCE"
  fi
 fi

 if [ "$MAINSELECT" = "SOURCE" ]; then
  SeTmedia 
  if [ -r $TMP/SeTsource ]; then
   MAINSELECT="SELECT"
  fi
 fi

 if [ "$MAINSELECT" = "SELECT" ]; then
  if [ -r /var/log/mount/isolinux/setpkg ]; then
    sh /var/log/mount/isolinux/setpkg
  else
    SeTPKG
  fi
  if [ -r $TMP/SeTSERIES ]; then
   MAINSELECT="INSTALL"
  fi
 fi

 if [ "$MAINSELECT" = "INSTALL" ]; then
  if [ ! -r $TMP/SeTSERIES -o ! -r $TMP/SeTsource -o ! -r $TMP/SeTnative ]; then
   dialog --title "CANNOT INSTALL SOFTWARE YET" --msgbox "\
\n\
Before you can install software, complete the following tasks:\n\
\n\
1. Select your source media.\n\
2. Set up your target Linux partition(s).\n\
3. Select which software categories to install.\n\
\n\
You may also optionally remap your keyboard and set up your\n\
swap partition(s). \n\
\n\
Press ENTER to return to the main menu." 16 68
   continue
  fi
  SERIES="`cat $TMP/SeTSERIES`"
  SOURCE_DEVICE="`cat $TMP/SeTsource`"
  IGNORE_TAGFILES=""
  while [ 0 ]; do
   dialog --title "SELECT PROMPTING MODE" --default-item "terse" --menu \
   "Now you must select the type of prompts you'd like to see during the \
installation process. If you have the drive space, the 'full' option \
is quick, easy, and by far the most foolproof choice. The 'newbie' \
mode provides the most information but is much more time-consuming \
(presenting the packages one by one) than the menu-based choices. \
Otherwise, you can pick packages from menus \
using 'expert' or 'menu' mode. Which type of prompting would you like \
to use?" \
   20 76 7 \
   "full" "Install everything (15+ GB of software, RECOMMENDED!)" \
   "terse" "Like 'full', but display one line per package during install" \
   "menu" "Choose individual packages from interactive menus" \
   "expert" "This is actually the same as the \"menu\" option" \
   "newbie" "Use verbose prompting (the X series takes one year)" \
   "custom" "Use custom tagfiles in the package directories" \
   "tagpath" "Use tagfiles in the subdirectories of a custom path" \
   "help" "Read the prompt mode help file" 2> $TMP/SeTpmode
   if [ ! $? = 0 ]; then
    rm -f $TMP/SeTpmode
    exit
   fi
   MODE="`cat $TMP/SeTpmode`"
   rm -f $TMP/SeTtagext
   if [ "$MODE" = "help" ]; then
    dialog --title "PROMPT MODE HELP" --exit-label OK --textbox "/usr/lib/setup/PROMPThelp" 19 65
   fi
   if [ "$MODE" = "tagpath" ]; then
    dialog --title "PROVIDE A CUSTOM PATH TO YOUR TAGFILES" --inputbox \
    "If you're installing from CD or DVD, it's impossible to edit the \
tagfiles that are in the package directories. In this case, you might \
want to provide a path to your custom tagfiles. As an example, you \
could create a /tagfiles directory and mount a floppy disk containing \
the tagfiles on that directory. Then you'd enter '/tagfiles' at the \
prompt below. The setup program will look for your tagfile in \
SUBDIRECTORIES of the path you provide, such as /tagfiles/a, \
/tagfiles/ap, /tagfiles/d, and so on. You only need to provide a \
subdirectory and tagfile for the first disk of each series to be \
installed. If a custom tagfile is not found at the path you provide, \
setup will revert to the default tagfiles. Please enter the path to your \
custom tagfiles:" \
    19 71 2> $TMP/SeTtagpath
    if [ ! $? = 0 ]; then
     continue
    fi
    if [ -r $TMP/SeTtagpath ]; then
     if [ "`cat $TMP/SeTtagpath`" = "" ]; then
      rm -f $TMP/SeTtagpath
     elif [ ! -d "$(cat $TMP/SeTtagpath)" ]; then
       dialog --title "NOT A VALID DIRECTORY" --msgbox \
"Sorry, but the $(cat $TMP/SeTtagpath) directory could not be located. \
Press ENTER to go back to the SELECT PROMPTING MODE menu." \
7 65
      rm -f $TMP/SeTtagpath
      continue
     fi
    fi
    break;
   fi
   if [ "$MODE" = "newbie" ]; then 
    dialog --infobox "'newbie' prompt mode selected.  Using default tagfiles \
and verbose package prompting." 4 50
    break;
   fi 
   if [ "$MODE" = "custom" ]; then
    dialog --title "ENTER CUSTOM EXTENSION" --inputbox "Now, enter the custom \
extension you have used for your tagfiles. This must be a valid MS-DOS format \
file extension consisting of a period followed by three characters. For \
example, I use '.pat'. You might see my tagfiles on your disks. :^)" \
12 60 2> $TMP/SeTtagext
    if [ ! $? = 0 ]; then
     continue
    fi
    if [ -r $TMP/SeTtagext ]; then
     if [ "`cat $TMP/SeTtagext`" = "" ]; then
      rm -f $TMP/SeTtagext
     fi
    fi
    dialog --infobox "'custom' prompt mode selected. Using prompting defaults \
found in custom tagfiles." 4 50
    break;
   fi
   if [ "$MODE" = "full" ]; then
    IGNORE_TAGFILES="-ignore_tagfiles"
    dialog --infobox "Full installation mode. Installing all software \
packages without prompting." 4 45
    break;
   fi
   if [ "$MODE" = "terse" ]; then
    setterm -background cyan -foreground black -blank 0
    clear
    IGNORE_TAGFILES="-ignore_tagfiles"
    echo
    echo
    echo "Full (terse display) installation mode."
    echo
    echo "A one-line description will be displayed as each package is installed."
    echo
    break;
   fi
   if [ "$MODE" = "menu" ]; then
    dialog --infobox "'menu' prompt mode selected. Using interactive menus \
to choose subsystems of related packages." 4 60
    break;
   fi
   if [ "$MODE" = "expert" ]; then
    dialog --infobox "'expert' prompt mode selected. Using interactive menus \
to choose packages individually." 4 60
    break;
   fi 
  done
  export MAKETAG;
  sleep 1
  # On a new system, make /etc/mtab a symlink to /proc/mounts:
  if [ ! -r $T_PX/etc/mtab ]; then
    mkdir -p $T_PX/etc
    ( cd $T_PX/etc ; ln -sf /proc/mounts mtab )
  fi
  # Do the package install:
  if [ -r $TMP/SeTCDdev ]; then # only try to remount media if it's a CD/DVD
    slackinstall --device `cat $TMP/SeTCDdev` --promptmode $MODE --srcpath `cat $TMP/SeTDS` --mountpoint /var/log/mount --target $T_PX --series $SERIES
  elif [ -r $TMP/SeTremotesvr ]; then
    slackinstall --device noremount --promptmode $MODE --srcpath `cat $TMP/SeTDS` --mountpoint /var/log/mount --target $T_PX --series $SERIES --net `cat $TMP/SeTremotesvr`
  else
    slackinstall --device noremount --promptmode $MODE --srcpath `cat $TMP/SeTDS` --mountpoint /var/log/mount --target $T_PX --series $SERIES
  fi
  # Run ldconfig on the newly installed system:
  if [ -x $T_PX/sbin/ldconfig ]; then
    $T_PX/sbin/ldconfig -r $T_PX
  fi
  if [ $MODE = terse ]; then
    # Let's pause a moment and then restore the terminal settings
    sleep 1
    setterm -background black -foreground white -blank 0
  fi
  MAINSELECT="CONFIGURE"
 fi

 if [ "$MAINSELECT" = "CONFIGURE" ]; then
  # Make bind mounts for /dev, /proc, and /sys:
  mount -o bind /dev $T_PX/dev 2> /dev/null
  mount -o bind /proc $T_PX/proc 2> /dev/null
  mount -o bind /sys $T_PX/sys 2> /dev/null
  SeTconfig
  REPLACE_FSTAB=Y
  if [ -r $TMP/SeTnative ]; then
   if [ -r $T_PX/etc/fstab ]; then
    dialog --title "REPLACE /etc/fstab?" --yesno "You already have an \
/etc/fstab on your install partition. If you were just adding software, \
you should probably keep your old /etc/fstab. If you've changed your \
partitioning scheme, you should use the new /etc/fstab. Do you want \
to replace your old /etc/fstab with the new one?" 10 58
    if [ ! $? = 0 ]; then
     REPLACE_FSTAB=N
    fi
   fi
   if [ "$REPLACE_FSTAB" = "Y" ]; then
    cat /dev/null > $T_PX/etc/fstab
    if [ -r $TMP/SeTswap ]; then
     cat $TMP/SeTswap > $T_PX/etc/fstab
    fi
    cat $TMP/SeTnative >> $T_PX/etc/fstab
    if [ -r $TMP/SeTDOS ]; then
     cat $TMP/SeTDOS >> $T_PX/etc/fstab
    fi
    printf "%-16s %-16s %-11s %-16s %-3s %s\n" "#/dev/cdrom" "/mnt/cdrom" "auto" "noauto,owner,ro,comment=x-gvfs-show" "0" "0" >> $T_PX/etc/fstab
    printf "%-16s %-16s %-11s %-16s %-3s %s\n" "/dev/fd0" "/mnt/floppy" "auto" "noauto,owner" "0" "0" >> $T_PX/etc/fstab
    printf "%-16s %-16s %-11s %-16s %-3s %s\n" "devpts" "/dev/pts" "devpts" "gid=5,mode=620" "0" "0" >> $T_PX/etc/fstab
    printf "%-16s %-16s %-11s %-16s %-3s %s\n" "proc" "/proc" "proc" "defaults" "0" "0" >> $T_PX/etc/fstab
    printf "%-16s %-16s %-11s %-16s %-3s %s\n" "tmpfs" "/dev/shm" "tmpfs" "nosuid,nodev,noexec" "0" "0" >> $T_PX/etc/fstab
   fi
   dialog --title "SETUP COMPLETE" --msgbox "System configuration \
and installation is complete. \
\n\nYou may now reboot your system." 7 55
  fi
 fi

 if [ "$MAINSELECT" = "EXIT" ]; then
  break
 fi

done # end of main loop
sync

chmod 755 $T_PX
if [ -d $T_PX/tmp ]; then
 chmod 1777 $T_PX/tmp
fi
if mount | grep /var/log/mntiso 1> /dev/null 2> /dev/null ; then
 umount -f /var/log/mntiso
fi
if mount | grep /var/log/mount 1> /dev/null 2> /dev/null ; then
 umount /var/log/mount
fi
# Anything mounted on /var/log/mount now is a fatal error:
if mount | grep /var/log/mount 1> /dev/null 2> /dev/null ; then
  exit
fi
# If the mount table is corrupt, the above might not do it, so we will
# try to detect Linux and FAT32 partitions that have slipped by:
if [ -d /var/log/mount/lost+found -o -d /var/log/mount/recycled \
     -o -r /var/log/mount/io.sys ]; then
  exit
fi
rm -f /var/log/mount 2> /dev/null
rmdir /var/log/mount 2> /dev/null
mkdir /var/log/mount 2> /dev/null
chmod 755 /var/log/mount

# An fstab file is indicative of an OS installation, rather than
# just loading the "setup" script and selecting "EXIT"
if [ -f ${T_PX}/etc/fstab ]; then
  # umount CD:
  if [ -r $TMP/SeTCDdev ]; then
    if mount | grep iso9660 > /dev/null 2> /dev/null ; then
      umount `mount | grep iso9660 | cut -f 1 -d ' '`
    fi
    eject -s `cat $TMP/SeTCDdev`
    # Tell the user to remove the disc, if one had previously been mounted
    # (it should now be ejected):
    dialog \
     --clear \
     --title "Slackware Linux Setup is complete" "$@" \
     --msgbox "\nPlease remove the installation disc.\n" 7 40
  fi

  # Offer to reboot or drop to shell or power off.
  exec 3>&1
  installerexittype=$( dialog \
     --clear \
     --title "Slackware Linux Setup is complete" "$@" \
     --default-item Reboot "$@" \
     --menu "Slackware Linux setup is complete.
             \n\nYou may now reboot your machine into the Slackware OS.\n
             \nIf you have some post-installation tweaks you'd like to make manually, you can open a shell.\n
             \
             \nIf you want to make some changes to the hardware before booting the
               Slackware OS, you may wish to power off computer.\n" \
             17 80 3 \
	     Shell	 "" \
	     Reboot	 "" \
	     "Power Off" "" \
   2>&1 1>&3 )
   retval=$?
   exec 3>&-
fi

# Fix the date:
/sbin/fixdate

# Final cleanup
rm -f $TMP/tagfile $TMP/SeT* $TMP/tar-error $TMP/PKGTOOL_REMOVED
rm -f /var/log/mount/treecache
rmdir /var/log/mntiso 2>/dev/null
rm -rf $TMP/treecache
rm -rf $TMP/pkgcache
rmdir ${T_PX}/tmp/orbit-root 2> /dev/null
sync

# Handle installer exit types:
case "$installerexittype" in
   "Reboot")
       clear
       printf "\n** Starting reboot **\n\n"
       sleep 1.5
       reboot ;;
   "Power Off")
       clear
       printf "\n** Powering off **\n\n"
       sleep 1.5
       poweroff ;;
   "Shell")
       # Note: the shell the user receives at this point is the parent from which
       # they entered this 'setup' script.  This is why we don't explictly open a shell here.
       clear
       printf "\nYou may now reboot your system once you are ready.\n"
       printf "You can issue the 'reboot' command; or if your system has\n"
       printf "a keyboard attached, you can use the key combination: control+alt+delete\n\n" ;;
esac

# End of Slackware setup script