#!/bin/sh
# http://www.phys.ethz.ch/~franklin/Projects/dphys2/endfirstrun
#   - script to be run at end of /sbin/dbootstrap for further automation
# copyright ETH Zuerich Physics Deparement, use under either BSD or GPL license
# author Neil Franklin, last modification 2003.08.04


# this script is intended to be run as  root  by  dbootstrap  chroot-ed to the
#   target disk, at the end of the first installation stage

# this script generates scripts to be run by base-config, that fix up the
#   installed system, so that it autoinstalls our desired packages and configs
#   and does so without any questions being asked


# --- read in setup, for ${CONF_*}, ${DEBUG_*} and ${SYS_*}

. /etc/setup-dphys2


# --- local setup stuff for this script

# whether we want to install an identd for local non-free package server access
#   this is for accessing packages containing stuff not intended for everyone
#   such package smay contain ssh hostkeys, license keys, or be commercial sw
CONF_IDENTD=yes

# what the names of our host packages begin with
#   we name all our local packages dphys-*, so host packages are dphys-host-*
#     you are advised to use <yoursite>-host-*
#   dphys-host-`hostname` package is expected to:
#     a) depend on host specific packages (such as kernel)
#     b) install host specific config files (such as XF86Config)
#     c) an dphys-site site package which does the rest of the work
#   dphys-site package is expected to:
#     a) depends on packages used on all hosts
#     b) installs config files used on all hosts
#     c) depend on dphys-admin package
#   dphys-admin package is expected to:
#     a) add daily cron job to  apt-get update/upgrade, incl newer dphys-admin
#     b) add init script for the case cron job is not run due to power off
#   see "makepackage" for generating/modifying such host and site packages
CONF_HOST_TO_PKG_PREFIX=dphys-host-

# whether to leave our generated script, or tidy them up
#DEBUG_LEAVE_SCRIPTS=yes

# where to add the additional base-config scripts
SYS_BASECONF_DIR=/usr/lib/base-config


# --- fix up debconf for no questions

# prevent questions while installing packages from woody-proposed-updates
#   this is also then active later when installing random stuff

/bin/echo "-------------------------------------------"
/bin/echo "*** Fix up Debconf *** for no questions ..."

if [ x${DEBUG_SLEEP} != x ] ; then
  /bin/sleep ${DEBUG_SLEEP}
fi

# 01debconf, so just after 00dbootstrap_settings, after Debian has touched this
SCRIPT_DEBCONF=${SYS_BASECONF_DIR}/01debconf


/bin/cat << EOF > ${SCRIPT_DEBCONF}
#!/bin/sh -e
# reconfigure debconf to not ask any questions

# debconf access needs this, first action (may restart this script!)
. /usr/share/debconf/confmodule

# make base-config set up debconf to use defaults, without asking questions
#   get rid of as many dialogs and questions as possible
# *NOTE* that we still need debconf-preload because base-config tricks us
db_set debconf/priority critical
db_set debconf/frontend noninteractive

if [ x${DEBUG_LEAVE_SCRIPTS} != xyes ] ; then
  rm ${SCRIPT_DEBCONF}
fi
EOF


/bin/chmod 755 ${SCRIPT_DEBCONF}

if [ x${DEBUG_WAIT_STEP} = xyes ] ; then
  /bin/echo "--- debug info ---"
  /bin/ls -al ${SCRIPT_DEBCONF}
  /bin/echo "--- end debug info ---"
  read dummy
fi


# --- eneble IDE DMA speed up some stupid disk drives

# prevent having to sit a long tome while the massive apt-get is running on PIO
#   dbootstrap has once set this, but only until the second stage reboot
#   so we here go and ensure that base-config reenables it before large work
#   for continued operation after next reboot, install dphys-ide-dma package

# use this to force IDE DMA usage on some stupid hd<n> disk drives
if [ x${CONF_DISK_IDEDMA} != x ] ; then

  /bin/echo "------------------------------------------------------------------"
  /bin/echo "*** Force enabling of second stage IDE DMA *** on ${CONF_DISK} ..."

  if [ x${DEBUG_SLEEP} != x ] ; then
    /bin/sleep ${DEBUG_SLEEP}
  fi

  # 02idedma, so just after 01debconf
  SCRIPT_IDEDMA=${SYS_BASECONF_DIR}/02idedma

  DRIVE=`echo ${CONF_DISK} | cut -f 3 -d "/"`


  /bin/cat << EOF > ${SCRIPT_IDEDMA}
#!/bin/sh -e
# enable IDE DMA for faster apt-get install

# use this to force DMA usage on some stupid hd<n> disk drives
echo "using_dma:1" > /proc/ide/${DRIVE}/settings
echo "io_32bit:1" > /proc/ide/${DRIVE}/settings

if [ x${DEBUG_LEAVE_SCRIPTS} != xyes ] ; then
  rm ${SCRIPT_IDEDMA}
fi
EOF


  /bin/chmod 755 ${SCRIPT_IDEDMA}

  if [ x${DEBUG_WAIT_STEP} = xyes ] ; then
    /bin/echo "--- debug info ---"
    /bin/ls -al ${SCRIPT_IDEDMA}
    /bin/echo "--- end debug info ---"
    read dummy
  fi

fi


# --- insert script to load our host package for this host

# do an  apt-get install  of host package at the end

/bin/echo "--------------------------------------------------------"
/bin/echo "*** Apt-get Install Host Package *** for autoinstall ..."

if [ x${DEBUG_SLEEP} != x ] ; then
  /bin/sleep ${DEBUG_SLEEP}
fi

# 99z20hostpackage so it sorts after 99inittab, 'h'<'i' so use 'z' :-(
#   so after all Debian stuff done, as if user had logged in and done apt-get
#     this allows us to do anything, including rebooting, without conflicts
SCRIPT_HOSTPACKAGE=${SYS_BASECONF_DIR}/99z20hostpackage


/bin/cat << EOF > ${SCRIPT_HOSTPACKAGE}
#!/bin/sh -e
# install the host package and all its dependencies


### *** really ugly nasty workaround
### this stuff makes massive trouble with apt-get (nondeterministic row)
# forget them preinst scripts, they don't time reliable, throw this in here
cat << EO2 > /etc/kernel-img.conf
# Do not create symbolic links in /
do_symlinks = Yes
do_initrd = Yes
silent_modules = Yes
do_bootfloppy = No
do_bootloader = Yes
EO2
### *** end really ugly nasty workaround


# install identd, else we will not get access to host/site/admin packages
if [ x${CONF_IDENTD} = xyes ] ; then
  nice yes '' | apt-get install oidentd
  nice yes '' | apt-get update
fi

# run yes with nice, else it uses up all CPU und apt-get gets really slow
nice yes '' | apt-get install ${CONF_HOST_TO_PKG_PREFIX}\`hostname\`

# some packages crash out of  apt-get install  but work when re-run
#   some being g77 und g77-2.95, if you have such, use this dirty fix instead:
#while ! nice yes '' | \
#  apt-get install ${CONF_HOST_TO_PKG_PREFIX}\`hostname\`; do :; done

# flag file, any script run by  apt-get  can  touch  and so demand an reboot
#   reboot must be done after  apt-get, not from  postinst  else we are screwed
REBOOT_FILE=/root/NEED-REBOOT
if [ -f \${REBOOT_FILE} ] ; then
  rm \${REBOOT_FILE}
  echo "### rebooting due to \${REBOOT_FILE} having being touched"
  reboot
fi

if [ x${DEBUG_LEAVE_SCRIPTS} != xyes ] ; then
  rm ${SCRIPT_HOSTPACKAGE}
fi
EOF


/bin/chmod 755 ${SCRIPT_HOSTPACKAGE}

if [ x${DEBUG_WAIT_STEP} = xyes ] ; then
  /bin/echo "--- debug info ---"
  /bin/ls -al ${SCRIPT_HOSTPACKAGE}
  /bin/echo "--- end debug info ---"
  read dummy
fi