#!/bin/sh
#
#	setup 4.1 - install a MINIX distribution	
#
# Changes:
#    Aug     2005   robustness checks and beautifications  (Jorrit N. Herder)
#    Jul     2005   extended with autopart and networking  (Ben J. Gras)
#    Dec 20, 1994   created  (Kees J. Bot)
#						

LOCALRC=/usr/etc/rc.local
MYLOCALRC=/mnt/etc/rc.local

PATH=/bin:/usr/bin
export PATH


usage()
{
    cat >&2 <<'EOF'
Usage:	setup		# Install a skeleton system on the hard disk.
	setup /usr	# Install the rest of the system (binaries or sources).

	# To install from other things then floppies:

	urlget http://... | setup /usr		# Read from a web site.
	urlget ftp://... | setup /usr		# Read from an FTP site.
	mtools copy c0d0p0:... - | setup /usr	# Read from the C: drive.
	dosread c0d0p0 ... | setup /usr		# Likewise if no mtools.
EOF
    exit 1
}

warn() 
{
  echo -e "\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b ! $1"
}

# No options.
while getopts '' opt; do usage; done
shift `expr $OPTIND - 1`

if [ "$USER" != root ]
then	echo "Please run setup as root."
	exit 1
fi

# Installing MINIX on the hard disk.

case "$0" in
/tmp/*)
    rm -f "$0"
    ;;
*)  cp -p "$0" /tmp/setup
    exec /tmp/setup
esac

# Find out what we are running from.
exec 9<&0 </etc/mtab			# Mounted file table.
read thisroot rest			# Current root (/dev/ram or /dev/fd?)
read fdusr rest				# USR (/dev/fd? or /dev/fd?p2)
exec 0<&9 9<&-

# What do we know about ROOT?
case $thisroot:$fdusr in
/dev/ram:/dev/fd0p2)	fdroot=/dev/fd0		# Combined ROOT+USR in drive 0
			;;
/dev/ram:/dev/fd1p2)	fdroot=/dev/fd1		# Combined ROOT+USR in drive 1
			;;
/dev/ram:/dev/fd*)	fdroot=unknown		# ROOT is some other floppy
			;;
/dev/fd*:/dev/fd*)	fdroot=$thisroot	# ROOT is mounted directly
			;;
*)			fdroot=$thisroot	# ?
esac

echo -n "
Welcome to the MINIX setup script.  This script will guide you in setting up
MINIX on your machine.  Please consult the manual for detailed instructions.

Note 1: If the screen blanks, hit CTRL+F3 to select \"software scrolling\".
Note 2: If things go wrong then hit CTRL+C to abort and start over.
Note 3: Default answers, like [y], can simply be chosen by hitting ENTER.
Note 4: If you see a colon (:) then you should hit ENTER to continue.
:"
read ret

# begin Step 1
echo ""
echo " --- Step 1: Select keyboard type --------------------------------------"
echo ""

    echo "What type of keyboard do you have?  You can choose one of:"
    echo ""
    ls -C /usr/lib/keymaps | sed -e 's/\.map//g' -e 's/^/    /'
    echo ""
step1=""
while [ "$step1" != ok ]
do
    echo -n "Keyboard type? [us-std] "; read keymap
    test -n "$keymap" || keymap=us-std
    if loadkeys "/usr/lib/keymaps/$keymap.map" 2>/dev/null 
    then step1=ok 
    else warn "invalid keyboard"
    fi
done
# end Step 1


# begin Step 2
step2=""
while [ "$step2" != ok ]
do
echo ""
echo " --- Step 2: Create a partition for MINIX 3 ----------------------------"
echo ""

    echo "Now you need to create a MINIX 3 partition on your hard disk."
    echo "Unless you are an expert, you are advised to use the automated"
    echo "step-by-step help in setting up."
    echo ""
    ok=""
    while [ "$ok" = "" ]
    do
    echo -n "Press ENTER for automatic mode or type 'expert': "
    read mode
    if [ -z "$mode" ]; then auto="1"; ok="yes"; fi 
    if [ "$mode" = expert ]; then auto=""; ok="yes"; fi
    if [ "$ok" != yes ]; then warn "try again"; fi 
    done

primary=

if [ -z "$auto" ]
then
	# Expert mode
echo -n "
MINIX needs one primary partition of about 250 MB for a full install.
The maximum fill system currently supported is 4 GB.

If there is no free space on your disk then you have to choose an option:
   (1) Delete one or more partitions
   (2) Allocate an existing partition to MINIX 3
   (3) Exit setup and shrink a partition using a different OS

To make this partition you will be put in the editor \"part\".  Follow the
advice under the '!' key to make a new partition of type MINIX.  Do not
touch an existing partition unless you know precisely what you are doing!
Please note the name of the partition (e.g. c0d0p1, c0d1p3, c1d1p0) you
make.  (See the devices section in usage(8) on MINIX device names.)
:"
	read ret

	while [ -z "$primary" ]
	do
	    part || exit

	    echo -n "
Please finish the name of the primary partition you have created:
(Just type ENTER if you want to rerun \"part\")                   /dev/"
	    read primary
done
echo ""
echo "This is the point of no return.  You have selected to install MINIX"
echo "on partition /dev/$primary.  Please confirm that you want to use this"
echo "selection to install MINIX."
echo ""
confirmation=""
while [ -z "$confirmation" -o "$confirmation" != yes -a "$confirmation" != no ]
do
echo -n "Are you sure you want to continue? Please enter 'yes' or 'no': "
read confirmation
if [ "$confirmation" = yes ]; then step2=ok; fi
done

else
	# Automatic mode
#	while [ -z "$primary" ]
#	do
		PF="/tmp/pf"
		if autopart -f$PF
		then	if [ -s "$PF" ]
			then
				bd="`cat $PF`"
				if [ -b "/dev/$bd" ]
				then	primary="$bd"
				else	echo "Funny device $bd from autopart."
				fi
			else
				echo "Didn't find output from autopart."
			fi 
		else	echo "Autopart tool failed. Trying again."
		fi

		# reset at retries and timeouts in case autopart left
		# them messy
		atnormalize
#	done

	if [ -n "$primary" ]; then step2=ok; fi

fi

done
# end Step 2

root=${primary}s0
swap=${primary}s1
usr=${primary}s2
umount /dev/$usr 2>/dev/null && echo "Unmounted $usr for you."
umount /dev/$root 2>/dev/null && echo "Unmounted $root for you."

hex2int()
{
    # Translate hexadecimal to integer.
    local h d i

    h=$1
    i=0
    while [ -n "$h" ]
    do
	d=$(expr $h : '\(.\)')
	h=$(expr $h : '.\(.*\)')
	d=$(expr \( 0123456789ABCDEF : ".*$d" \) - 1)
	i=$(expr $i \* 16 + $d)
    done
    echo $i
}

# begin Step 3
echo ""
echo " --- Step 3: Select your Ethernet chip ---------------------------------"
echo ""

# Ask user about networking
echo "MINIX currently supports the following Ethernet cards. Please choose: "
    echo ""
    echo "0. No Ethernet card (no networking)"
    echo "1. Intel Pro/100"
    echo "2. Realtek 8139 based card"
    echo "3. Realtek 8029 based card (emulated by Qemu)"
    echo "4. NE2000, 3com 503 or WD based card (emulated by Bochs)"
    echo "5. 3Com 501 or 3Com 509 based card"
    echo "6. Different Ethernet card (no networking)"
    echo ""
    echo "You can always change your mind after the setup."
    echo ""
step3=""
while [ "$step3" != ok ]
do
    eth=""
    echo -n "Ethernet card? [0] "; read eth
    test -z $eth && eth=0
    driver=""
    driverargs=""
    case "$eth" in
        0) step3="ok"; ;;    
	1) step3="ok";	driver=fxp;      ;;
	2) step3="ok";	driver=rtl8139;  ;;
	3) step3="ok";	driver=dp8390;   driverargs="dp8390_arg='DPETH0=pci'";	;;
	4) step3="ok";	driver=dp8390;   driverargs="dp8390_arg='DPETH0=240:9'"; 
	   echo ""
           echo "Note: After installing, edit $LOCALRC to the right configuration."
           echo " chose option 4, the defaults for emulation by Bochs have been set."
		;;
	5) step3="ok";	driver=dpeth;    driverargs="#dpeth_arg='DPETH0=port:irq:memory'";
	   echo ""
           echo "Note: After installing, edit $LOCALRC to the right configuration."
		;;
        6) step3="ok"; ;;    
        *) warn "choose a number"
    esac
done
# end Step 3


# Compute the amount of memory available to MINIX.
memsize=0
ifs="$IFS"
IFS=','
set -- $(sysenv memory)
IFS="$ifs"

for mem
do
    mem=$(expr $mem : '.*:\(.*\)')
    memsize=$(expr $memsize + $(hex2int $mem) / 1024)
done

# Compute an advised swap size.
# swapadv=0
# case `arch` in
# i86)
#     test $memsize -lt 4096 && swapadv=$(expr 4096 - $memsize)
#     ;;
# *)  test $memsize -lt 6144 && swapadv=$(expr 6144 - $memsize)
# esac

blockdefault=4

echo ""
echo " --- Step 4: Select a block size ---------------------------------------"
echo ""

echo "The maximum (and default) file system block size is $blockdefault KB."
echo "For a small disk or small RAM you may want 1 or 2 KB blocks."
echo ""

while [ -z "$blocksize" ]
do	
	echo -n "Block size in kilobytes? [$blockdefault] "; read blocksize
	test -z "$blocksize" && blocksize=$blockdefault
	if [ "$blocksize" -ne 1 -a "$blocksize" -ne 2 -a "$blocksize" -ne $blockdefault ]
	then	
		warn "1, 2 or 4 please"
		blocksize=""
	fi
done

blocksizebytes="`expr $blocksize '*' 1024`"


# begin Step 5
# echo ""
# echo " --- Step 5: Allocate swap space ---------------------------------------"
# echo ""

# echo -n "How much swap space would you like?  Swapspace is only needed if this
# system is memory starved.  If you have 128 MB of memory or more, you
# probably don't need it. If you have less and want to run many programs
# at once, I suggest setting it to the memory size.

# Size in kilobytes? [$swapadv] "
# read swapsize
# test -z "$swapsize" && swapsize=$swapadv
# 

echo "
You have selected to install MINIX in the partition /dev/$primary.
The following subpartitions are now being created on /dev/$primary:

    Root subpartition:	/dev/$root	16 MB
    /usr subpartition:	/dev/$usr	rest of $primary
"
					# Secondary master bootstrap.
installboot -m /dev/$primary /usr/mdec/masterboot >/dev/null || exit
					# Partition the primary.
p3=0:0
# test "$swapsize" -gt 0 && p3=81:`expr $swapsize \* 2`
partition /dev/$primary 1 81:32768* $p3 81:0+ > /dev/null || exit
mkfs -B $blocksizebytes /dev/$root || exit
mkfs -B $blocksizebytes /dev/$usr || exit


# if [ "$swapsize" -gt 0 ]
# then
#     # We must have that swap, now!
#     mkswap -f /dev/$swap || exit
#     mount -s /dev/$swap || exit
# else
#     # Forget about swap.
#     swap=
# fi


echo ""
echo " --- Step 5: Wait for bad block detection ------------------------------"
echo ""
echo "Scanning disk for bad blocks.  Hit CTRL-C to stop the scan if you are"
echo "sure that there can not be any bad blocks.  Otherwise just wait."

trap ': nothing;echo' 2
echo ""
echo "Scanning /dev/$root for bad blocks:"
readall -b /dev/$root | sh
echo ""
echo "Scanning /dev/$usr for bad blocks:"
readall -b /dev/$usr | sh
trap 2

echo ""
echo " --- Step 6: Wait for files to be copied -------------------------------"
echo ""
echo "This is the final step of the MINIX setup.  All files will be now be"
echo "copied to your hard disk.  This may take a while."
echo ""

mount /dev/$usr /mnt >/dev/null || exit		# Mount the intended /usr.

files="`find /usr | wc -l`"
cpdir -v /usr /mnt | progressbar "$files" || exit	# Copy the usr floppy.


					# Set inet.conf to correct driver
if [ -n "$driver" ]
then	echo "$driverargs" >$MYLOCALRC
	disable=""
else	disable="disable=inet;"
fi

umount /dev/$usr >/dev/null || exit		# Unmount the intended /usr.
mount /dev/$root /mnt >/dev/null || exit

# Running from the installation CD.
files="`find / -xdev | wc -l`"
cpdir -vx / /mnt | progressbar "$files" || exit	

if [ -n "$driver" ]
then	echo "eth0 $driver 0 { default; };" >/mnt/etc/inet.conf
fi

# CD remnants that aren't for the installed system
rm /mnt/etc/issue /mnt/CD 2>/dev/null
					# Change /etc/fstab. (No swap.)
					# ${swap:+swap=/dev/$swap}
echo >/mnt/etc/fstab "\
# Poor man's File System Table.

root=/dev/$root
usr=/dev/$usr"

					# National keyboard map.
test -n "$keymap" && cp -p "/usr/lib/keymaps/$keymap.map" /mnt/etc/keymap

umount /dev/$root >/dev/null || exit	# Unmount the new root.
mount /dev/$usr /mnt >/dev/null || exit

# Make bootable.
installboot -d /dev/$root /usr/mdec/bootblock /boot/boot >/dev/null || exit
edparams /dev/$root "rootdev=$root; ramimagedev=$root; $disable; minix(=,Start MINIX 3) { unset image; boot; }; smallminix(+,Start Small MINIX 3) { image=/boot/image_small; boot; }; main() { echo By default, MINIX 3 will automatically load in 3 seconds.; echo Press ESC to enter the monitor for special configuration.; trap 3000 boot; menu; }; save" || exit
pfile="/mnt/src/tools/fdbootparams"
# echo "Remembering boot parameters in ${pfile}."
echo "rootdev=$root; ramimagedev=$root; $disable; save" >$pfile || exit
umount /dev/$usr
sync

bios="`echo $primary | sed 's/d./dX/g'`"

echo "
Please type 'shutdown' to exit MINIX 3 and enter the boot monitor. At
the boot monitor prompt, type 'boot $bios', where X is the bios drive
number of the drive you installed on, to try your new MINIX system.

This ends the MINIX setup script.  After booting your newly set up system,
you can run the test suites as indicated in the setup manual.  You also 
may want to take care of local configuration, such as securing your system
with a password.  Please consult the usage manual for more information. 

"