#!/bin/sh

# T2 SDE: target/share/install/rootfs/sbin/init
# Partially based on linuxrc.c, Copyright (C) 2003, 2004 Clifford Wolf and Rene Rebe
# Converted from C to shell, heavily cleaned and improved for the T2 SDE by:
# (C)2005-2024 Rene Rebe, ExactCODE GmbH; Germany.

export PATH="/sbin:/bin:/usr/sbin:/usr/bin"
export HOME="/root"

cd /dev; rm -f fd
ln -sf /proc/kcore      core
ln -sf /proc/self/fd    fd
ln -sf fd/0             stdin
ln -sf fd/1             stdout
ln -sf fd/2             stderr
cd /
mkdir -p /mnt

echo "
T2 SDE installer second stage.

The second stage is a small Linux distribution, loaded into your system's
memory. It has everything needed to install T2 Linux, restore a previous
installation, or perform maintenance, rescue and backup tasks."

for x in /etc/setup-*.sh /setup/setup.sh; do
   if [ -f "$x" ]; then
      echo; echo "Running $x ..."; sh $x
      echo "Setup script $x finished."
   fi
done

ttydevs="console= $(< /proc/cmdline)"
ttydevs=${ttydevs##*console=} ttydevs=${ttydevs%%[ ,]*}
if [ ! "$ttydevs" ]; then
   ttydevs="`grep -a -H Y /sys/class/tty/*/console`"
   ttydevs="${ttydevs%%/console*}" ttydevs=${ttydevs##*/}
fi
ttydevs="${ttydevs:-tty1 tty2 tty3 tty4 tty5 tty6}"
while true; do
	echo -n "
If you use a serial terminal, enter the names of terminal devices to use,
for example 'ttyS0' or 'ttyUSB0' for the first serial port or just 'console',
just hit enter otherwise. (default: $ttydevs): "
	read _ttydevs
	if [ "$_ttydevs" ]; then # check
		for x in $_ttydevs; do
			[ ! -c /dev/$x ] &&
				echo "$x is not a char-device." && continue 2
		done
		ttydevs="$_ttydevs"
	fi
	break
done

echo "
If you don't know what to do, it's a good time to read the T2 documentation.
To start a normal installation, simply run: 'install'"

if type -p dialog > /dev/null; then
	echo "(or 'install -text' if you prefer non-dialog based menus)"
fi
echo "
	https://t2sde.org/support"

for x in $ttydevs; do
   [[ "$x" != /dev/tty[0-9]* ]] && TERM=linux
   ( ( while : ; do agetty -i -J -n -N -l /sbin/login-shell $x $TERM; done ) & )
done

exec < /dev/null > /dev/null 2>&1
while : ; do sleep 1; done