#!/bin/bash
#
# chrx-install
#
# chromebook unix installer
#

CHRX_VERSION="2.4.1"

CHRX_OS_DISTRO="galliumos"
CHRX_OS_ENVIRONMENT="desktop"
CHRX_OS_RELEASE="latest"
CHRX_OS_ARCH="amd64"
CHRX_OS_MIRROR="primary"
CHRX_TARGET_DISK=""
CHRX_ADD_PKGS=
CHRX_OS="linux"
CHRX_HOSTNAME="chrx"
CHRX_USERNAME="chrx"
CHRX_LOCALE="en_US.UTF-8"
CHRX_TZ="America/New_York"

CHRX_CACHE_DIR="/var/cache/chrx"
CHRX_INSTALL_ROOT="/tmp/chrxroot"

VERBOSITY=""
VERBOSITY_APTGET="-q"
VERBOSITY_MKFS="-q"
VERBOSITY_CURL="-#"
VERBOSITY_DNF=""
VERBOSITY_INSTALL=""

CHRX_PROMPT_ENABLED=1
CHRX_NOTIFY_ENABLED=1
CHRX_CUSTOMIZATION_ENABLED=1
CHRX_CONFIGURE_GRUB_ENABLED=

USAGE="
chrx installer, version ${CHRX_VERSION}

Usage: $0 [ option ... ]

Options
   -d DISTRIBUTION OS-specific distribution to install [${CHRX_OS_DISTRO}]
                     galliumos, ubuntu, lubuntu, xubuntu, kubuntu, edubuntu,
                     fedora
   -e ENVIRONMENT  distribution-specific environment [${CHRX_OS_ENVIRONMENT}]
                     galliumos: desktop
                     ubuntu etc: desktop, minimal, standard, server
                     fedora: desktop, workstation, kde, xfce, lxde, mate,
                       cinnamon, sugar
   -r RELEASE      distribution release number or name [${CHRX_OS_RELEASE}]
                     galliumos: latest, 2.0, xenon, nightly
                     ubuntu etc: latest, lts, dev, 16.04, 16.10, xenial, etc
                     fedora: latest, 23, 24, 25
   -a ARCH         processor architecture (i386, amd64) [${CHRX_OS_ARCH}]
   -m MIRROR       distribution-specific download mirror [${CHRX_OS_MIRROR}]
                     galliumos: ny1.us, va1.us, ca1.us, rb1.fr
   -t TARGETDISK   target disk (/dev/mmcblk1, /dev/sdb, etc) [${CHRX_TARGET_DISK}]
   -p PACKAGE      additional packages to install, may repeat [${CHRX_ADD_PKGS}]
                     kodi, minecraft, steam, etc, see chrx.org for more
                     (not yet supported on fedora)
   -H HOSTNAME     hostname for new system [${CHRX_HOSTNAME}]
   -U USERNAME     username of first created user [${CHRX_USERNAME}]
   -L LOCALE       locale for new system [${CHRX_LOCALE}]
   -Z TIMEZONE     timezone for new system, Eggert convention [${CHRX_TZ}]
                     America/San_Francisco, Europe/Amsterdam, Etc/UTC, etc
   -n              disable success/failure notifications
   -s              skip all customization, install stock OS only
   -y              run non-interactively, take defaults and do not confirm
   -v              increase output verbosity
   -h              show this help

Default values are shown in brackets, e.g.: [default].

If TARGETDISK is not specified, chrx will select the internal SSD.
"

ANSI_RED=$'\033[1;31m'
ANSI_YEL=$'\033[1;33m'
ANSI_GRN=$'\033[1;32m'
ANSI_VIO=$'\033[1;35m'
ANSI_BLU=$'\033[1;36m'
ANSI_WHT=$'\033[1;37m'
ANSI_RST=$'\033[0m'

echo_cmd()    { echo -e "${ANSI_BLU}${@}${ANSI_RST}"; }
echo_note()   { echo -e "${ANSI_YEL}${@}${ANSI_RST}"; }
echo_info()   { echo -e "${ANSI_GRN}${@}${ANSI_RST}"; }
echo_prompt() { echo -e "${ANSI_WHT}${@}${ANSI_RST}"; }
echo_warn()   { echo -e "${ANSI_YEL}${@}${ANSI_RST}"; }
echo_debug()  { echo -e "${ANSI_VIO}${@}${ANSI_RST}"; }
echo_fail()   { echo -e "${ANSI_RED}${@}${ANSI_RST}"; }

usage() { echo "${USAGE}"; exit; }

eval_try()
{
  #set +e
  local _cmd=$@

  [ "$VERBOSE" ] && echo_cmd "$_cmd"

  eval $_cmd
  #set -e
}

eval_crit()
{
  #set +e
  local _cmd=$@

  [ "$VERBOSE" ] && echo_cmd "$_cmd"

  eval $_cmd
  rc=$?

  if [ "$rc" -ne 0 ]; then
    echo_fail "fatal: return code ${rc} from command \"${_cmd}\""
    exit $rc
  fi
  #set -e
}

prompt_if_interactive()
{
  ## TODO this would be better with passed (lexical) refs
  PROMPT_RESPONSE=
  if [ "${CHRX_PROMPT_ENABLED}" ]; then
    read PROMPT_RESPONSE
  else
    echo
  fi
}

ping_chrx_org()
{
  msg=$1
  [ "$2" ] && deviceinfo="(${2})"
  CHRX_UA="chrx/${CHRX_VERSION} hw=${CHRX_HWID}${deviceinfo} sw=${CHRX_OS},${CHRX_OS_DISTRO}-${CHRX_OS_ENVIRONMENT},${CHRX_OS_RELEASE:-"-"},${CHRX_OS_VERSION:-"(tbd)"},${CHRX_OS_ARCH}"
  if [ "${CHRX_NOTIFY_ENABLED}" ]; then
    curl -s -m 7 -A "${CHRX_UA}" http://ping.chrx.org/${msg}
  fi
}

downcase() { echo "$@" | tr '[:upper:]' '[:lower:]'; }

# ref1, ref2
identify_hardware()
{
  local _outvar_hwid=$1
  local _outvar_desc=$2
  local _outvar_year=$3
  local _outvar_cpuf=$4
  local _outvar_prognosis=$5
  local _hwid_raw
  local _hwid
  local _prognosis
  local _desc
  local _cpuf
  local _year
  local _x

  _hwid_raw=$(crossystem hwid 2>/dev/null)
  [ "$_hwid_raw" ] || _hwid_raw=$(dmidecode -s system-product-name)
  _hwid=$(echo "$_hwid_raw" | head -1 | tr a-z A-Z | sed 's/ /_/g')

  case "$_hwid" in
    #TBD*)           _x='UN|...|2015|Dell 11P' ;;
    ACER_ZGB*)      _x='EF|PNV|2011|Acer AC700 Chromebook' ;;
    ARKHAM*)        _x='NG|ARM|2015|ASUS OnHub SRT-AC1900 Router' ;;
    ASUKA*)         _x='RS|SKL|2017|Dell Chromebook 13 (3380)' ;;
    BANJO*)         _x='FS|BYT|2015|Acer Chromebook 15 (CB3-531)' ;;
    BANON*)         _x='FS|BSW|2016|Acer Chromebook 15 (CB3-532)' ;;
    BIG*)           _x='NG|ARM|2014|Acer Chromebook 13 (CB5-311)' ;;
    BLAZE*)         _x='NG|ARM|2014|HP Chromebook 14 G3' ;;
    BOB*)           _x='NG|ARM|2017|ASUS Chromebook Flip C101PA' ;;
    BUDDY*)         _x='ES|BDW|2016|Acer Chromebase 24' ;;
    BUTTERFLY*)     _x='UN|SNB|2013|HP Pavilion Chromebook 14' ;;
    CANDY*)         _x='FS|BYT|2015|Dell Chromebook 11' ;;
    CAROLINE*)      _x='RS|SKL|2017|Samsung Chromebook Pro' ;;
    CAVE*)          _x='RS|SKL|2016|ASUS Chromebook Flip C302' ;;
    CELES*)         _x='FS|BSW|2016|Samsung Chromebook 3' ;;
    CHELL*)         _x='RS|SKL|2016|HP Chromebook 13 G1' ;;
    CLAPPER*)       _x='FS|BYT|2014|Lenovo N20/N20P Chromebook' ;;
    CYAN*)          _x='FS|BSW|2015|Acer Chromebook R11 (CB5-132T, C738T)' ;;
    EDGAR*)         _x='FS|BSW|2016|Acer Chromebook 14 (CB3-431)' ;;
    ELM*)           _x='NG|ARM|2016|Acer Chromebook R13 (CB5-312T)' ;;
    ENGUARDE_???-???-??A*)  _x='FS|BYT|2014|CTL N6 Education Chromebook' ;;
    ENGUARDE_???-???-??B*)  _x='FS|BYT|2014|M&A Chromebook' ;;
    ENGUARDE_???-???-??C*)  _x='FS|BYT|2014|Senkatel C1101 Chromebook' ;;
    ENGUARDE_???-???-??D*)  _x='FS|BYT|2014|Edxis Education Chromebook' ;;
    ENGUARDE_???-???-??E*)  _x='FS|BYT|2015|Lenovo N21 Chromebook' ;;
    ENGUARDE_???-???-??F*)  _x='FS|BYT|2016|RGS Education Chromebook' ;;
    ENGUARDE_???-???-??G*)  _x='FS|BYT|2016|Crambo Chromebook' ;;
    ENGUARDE_???-???-??H*)  _x='FS|BYT|2016|True IDC Chromebook' ;;
    ENGUARDE_???-???-??I*)  _x='FS|BYT|2016|Videonet Chromebook' ;;
    ENGUARDE_???-???-??J*)  _x='FS|BYT|2016|eduGear Chromebook R' ;;
    ENGUARDE_???-???-??K*)  _x='FS|BYT|2016|ASI Chromebook' ;;
    ENGUARDE*)              _x='FS|BYT|201x|(unknown ENGUARDE)' ;;
    EXPRESSO_???-???-??A*)  _x='NG|ARM|2014|HEXA Chromebook Pi' ;;
    EXPRESSO_???-???-??B*)  _x='NG|ARM|2014|Bobicus Chromebook 11' ;;
    EXPRESSO_???-???-??C*)  _x='NG|ARM|2014|Edxis Chromebook' ;;
    EXPRESSO*)              _x='NG|ARM|201x|(unknown EXPRESSO)' ;;
    EVE*)           _x='UN|KBL|2017|Google Pixelbook' ;;
    FALCO*)         _x='OK|HSW|2013|HP Chromebook 14' ;;
    FIEVEL*)        _x='NG|ARM|2017|AOPEN Chromebox Mini' ;;
    GANDOF*)        _x='OK|BDW|2015|Toshiba Chromebook 2 CB30/CB35' ;;
    GLIMMER*)       _x='FS|BYT|2014|Lenovo ThinkPad 11e/Yoga Chromebook' ;;
    _GLIMMER*)      _x='FS|BYT|2014|Lenovo ThinkPad Yoga Chromebook' ;;
    _GLIMMER*)      _x='FS|BYT|2015|Lenovo Thinkpad 11e Chromebook' ;;
    GNAWTY_???-???-??A*) _x='FS|BYT|2014|Acer Chromebook 11 (CB3-111,C730,C730E)' ;;
    GNAWTY_???-???-??B*) _x='FS|BYT|2016|Acer Chromebook 11 (CB3-131,C735)' ;;
    GNAWTY*)        _x='FS|BYT|201x|(unknown GNAWTY)' ;;
    GUADO*)         _x='ES|BDW|2015|ASUS Chromebox CN62' ;;
    HANA_???-???-??A*) _x='NG|ARM|2017|Lenovo N23 Yoga/Flex 11 Chromebook' ;;
    HANA_???-???-??B*) _x='NG|ARM|2017|Poin2 Chromebook 14' ;;
    HANA*)             _x='NG|ARM|2017|(unknown HANA)' ;;
    HELI*)          _x='FS|BYT|2015|Haier Chromebook G2' ;;
    #HELI*)          _x='FS|BYT|2015|Huaqin 11' ;;
    IEC_MARIO*)     _x='UN|PNV|2011|Google Cr-48' ;;
    JAQ_???-???-???-A*) _x='NG|ARM|2015|Haier Chromebook 11' ;;
    JAQ_???-???-???-B*) _x='NG|ARM|2015|True IDC Chromebook 11' ;;
    JAQ_???-???-???-C*) _x='NG|ARM|2015|Xolo Chromebook' ;;
    JAQ_???-???-???-D*) _x='NG|ARM|2016|Medion Akoya S2013 Chromebook' ;;
    JAQ*)               _x='NG|ARM|201x|(unknown JAQ)' ;;
    JERRY_???-???-???-A*) _x='NG|ARM|2015|HiSense Chromebook 11' ;;
    JERRY_???-???-???-B*) _x='NG|ARM|2015|CTL J2/J4 Chromebook for Education' ;;
    JERRY_???-???-???-C*) _x='NG|ARM|2015|Poin2 Chromebook 11' ;;
    JERRY_???-???-???-D*) _x='NG|ARM|2015|eduGear Chromebook K Series' ;;
    JERRY_???-???-???-E*) _x='NG|ARM|2016|NComputing Chromebook CX100/110' ;;
    JERRY_???-???-???-F*) _x='NG|ARM|2016|Epik Chromebook' ;;
    JERRY_???-???-???-G*) _x='NG|ARM|2017|Positivo Chromebook CH1190' ;;
    JERRY_???-???-???-H*) _x='NG|ARM|2016|Mecer Chromebook' ;;
    JERRY*)               _x='NG|ARM|201x|(unknown JERRY)' ;;
    KEFKA_???-A*)         _x='RS|BSW|2017|Dell Chromebook 11 (3180)' ;;
    KEFKA_???-B*)         _x='RS|BSW|2017|Dell Chromebook 11 (3189)' ;;
    KEFKA*)               _x='RS|BSW|2017|(unknown KEFKA)' ;;
    KEVIN*)               _x='NG|ARM|2017|Samsung Chromebook Plus' ;;
    KIP_[ABC]*)     _x='FS|BYT|2015|HP Chromebook 11 G3/G4' ;;
    KIP_[DE]*)      _x='FS|BYT|2015|HP Chromebook 14 G4' ;;
    KIP*)           _x='FS|BYT|201x|(unknown KIP)' ;;
    KITTY*)         _x='NG|ARM|2015|Acer Chromebase' ;;
    LARS*)          _x='RS|SKL|2016|Acer Chromebook 14 for Work' ;;
    LEON*)          _x='OK|HSW|2014|Toshiba CB30/CB35 Chromebook' ;;
    LILI*)          _x='RS|SKL|2017|Acer Chromebook 11 (C771, C771T)' ;;
    LINK*)          _x='RS|IVB|2013|Google Chromebook Pixel' ;;
    X86_LINK*)      _x='RS|IVB|2013|Google TEST Chromebook Pixel' ;;
    LULU*)          _x='OK|BDW|2015|Dell Chromebook 13 (7310)' ;;
    LUMPY*)         _x='UN|SNB|2012|Samsung Chromebook Series 5 550' ;;
    MCCLOUD*)       _x='RS|HSW|2014|Acer Chromebox CXI' ;;
    MICKEY*)        _x='NG|ARM|2015|ASUS Chromebit CS10' ;;
    MIGHTY_???-???-???-A*) _x='NG|ARM|2015|Haier Chromebook 11e' ;;
    MIGHTY_???-???-???-B*) _x='NG|ARM|2015|Nexian Chromebook' ;;
    MIGHTY_???-???-???-D*) _x='NG|ARM|2015|eduGear Chromebook M Series' ;;
    MIGHTY_???-???-???-E*) _x='NG|ARM|2015|Sector 5 E1 Rugged Chromebook' ;;
    MIGHTY_???-???-???-F*) _x='NG|ARM|2015|Viglen Chromebook 11' ;;
    MIGHTY_???-???-???-G*) _x='NG|ARM|2016|PCmerge Chromebook PCM-116E' ;;
    MIGHTY_???-???-???-H*) _x='NG|ARM|2016|Lumos Education Chromebook' ;;
    MIGHTY_???-???-???-I*) _x='NG|ARM|2016|MEDION Chromebook S2015' ;;
    MIGHTY_???-???-???-J*) _x='NG|ARM|2017|Prowise 11 Chromebook' ;;
    MIGHTY*)               _x='NG|ARM|201x|(unknown MIGHTY)' ;;
    MINNIE*)        _x='NG|ARM|2015|ASUS Chromebook Flip C100PA' ;;
    MONROE_?[23]?*) _x='ES|HSW|2014|LG Chromebase 22CV241' ;;
    MONROE_?4?*)    _x='ES|HSW|2016|LG Chromebase 22CB25S' ;;
    MONROE*)        _x='ES|HSW|201x|(unknown MONROE)' ;;
    NINJA*)         _x='FS|BYT|2015|AOPEN Chromebox Commercial' ;;
    ORCO*)          _x='FS|BYT|2015|Lenovo Ideapad 100S Chromebook' ;;
    PAINE*)         _x='OK|BDW|2014|Acer Chromebook 11 (C740)' ;;
    PANTHER*)       _x='RS|HSW|2014|ASUS Chromebox CN60' ;;
    PARROT*)        _x='UN|IVB|2012|Acer C7 / C710 Chromebook' ;;
    X86_PARROT*)    _x='UN|IVB|2012|Acer C7 / C710 TEST Chromebook' ;;
    PEPPY*)         _x='OK|HSW|2013|Acer C720, C720P Chromebook' ;;
    X86_PEPPY*)     _x='OK|HSW|2013|Acer C720, C720P TEST Chromebook' ;;
    PIT*)           _x='NG|ARM|2014|Samsung Chromebook 2 (XE503C12)' ;;
    PI*)            _x='NG|ARM|2014|Samsung Chromebook 2 (XE503C32)' ;;
    PYRO*)          _x='FS|APL|2017|Lenovo Thinkpad 11e/Yoga Chromebook (G4)' ;;
    QUAWKS*)        _x='FS|BYT|2014|ASUS Chromebook C300' ;;
    REEF_???-C*)    _x='FS|APL|2017|ASUS Chromebook C213NA' ;;
    REEF*)          _x='FS|APL|2017|Acer Chromebook Spin 11 (R751T)' ;;
    REKS_???-???-???-B*) _x='FS|BSW|2016|Lenovo N42 Chromebook' ;;
    REKS_???-???-???-C*) _x='FS|BSW|2017|Lenovo N23 Chromebook (Touch)' ;;
    REKS_???-???-???-D*) _x='FS|BSW|2017|Lenovo N23 Chromebook' ;;
    REKS_???-???-???-*)  _x='FS|BSW|2016|Lenovo N22 Chromebook' ;;
    REKS*)          _x='FS|BSW|2016|(unknown REKS)' ;;
    #RELM_???-A*)    _x='FS|BSW|2016|n/a' ;;
    RELM_???-B*)    _x='FS|BSW|2016|CTL NL61 Chromebook' ;;
    RELM_???-C*)    _x='FS|BSW|2016|Edxis Education Chromebook' ;;
    RELM_???-F*)    _x='FS|BSW|2016|Mecer V2 Chromebook' ;;
    RELM_???-G*)    _x='FS|BSW|2016|HP Chromebook 11 G5 EE' ;;
    RELM_???-H*)    _x='FS|BSW|2017|Acer Chromebook 11 N7 (C731)' ;;
    RELM_???-Z*)    _x='FS|BSW|2016|Quanta OEM Chromebook' ;;
    RELM*)          _x='FS|BSW|2016|(unknown RELM)' ;;
    RIKKU*)         _x='ES|BDW|2015|Acer Chromebox CXI2' ;;
    SAMS_ALEX*)     _x='EF|PNV|2011|Samsung Chromebook Series 5' ;;
    SAMUS*)         _x='OK|BDW|2015|Google Chromebook Pixel' ;;
    SAND*)          _x='FS|APL|2017|Acer Chromebook 15 CB515-1HT/1H' ;;
    SENTRY*)        _x='RS|SKL|2016|Lenovo Thinkpad 13 Chromebook' ;;
    SETZER*)        _x='FS|BSW|2016|HP Chromebook 11 G5/11-vxxx' ;;
    SKATE*)         _x='NG|ARM|2013|HP Chromebook 11 G2' ;;
    SNAPPY*)        _x='FS|APL|2017|HP Chromebook x360 11 G1 EE' ;;
    SNOW*)          _x='NG|ARM|2012|Samsung Chromebook' ;;
    DAISY*)         _x='NG|ARM|2012|Samsung Chromebook XE303C12 (SNOW)' ;;
    SPEEDY*)        _x='NG|ARM|2015|ASUS Chromebook C201PA' ;;
    SPRING*)        _x='NG|ARM|2013|HP Chromebook 11 G1' ;;
    SQUAWKS*)       _x='FS|BYT|2014|ASUS Chromebook C200' ;;
    STOUT*)         _x='UN|IVB|2013|Lenovo Thinkpad X131e Chromebook' ;;
    STUMPY*)        _x='UN|SNB|2012|Samsung Chromebox Series 3' ;;
    SUMO*)          _x='FS|BYT|2015|AOPEN Chromebase Commercial' ;;
    SWANKY*)        _x='FS|BYT|2014|Toshiba Chromebook 2 CB30/CB35' ;;
    TERRA_???-???-???-A*) _x='FS|BSW|2016|ASUS Chromebook C202SA' ;;
    TERRA_???-???-???-B*) _x='FS|BSW|2016|ASUS Chromebook C300SA/C301SA' ;;
    TERRA*)               _x='FS|BSW|2016|(unknown TERRA)' ;;
    TIDUS*)         _x='ES|BDW|2015|Lenovo ThinkCentre Chromebox' ;;
    TIGER*)         _x='NG|ARM|2017|AOPEN Chromebase Mini' ;;
    TRICKY*)        _x='RS|HSW|2014|Dell Chromebox' ;;
    ULTIMA*)        _x='FS|BSW|2016|Lenovo ThinkPad 11e/Yoga Chromebook (G3)' ;;
    WHIRLWIND*)     _x='NG|ARM|2015|TP-Link OnHub TGR1900 Router' ;;
    WINKY*)         _x='FS|BYT|2014|Samsung Chromebook 2 (XE500C12)' ;;
    WIZPIG_???-???-??A*) _x='FS|BSW|2016|CTL Chromebook J5' ;;
    WIZPIG_???-???-??B*) _x='FS|BSW|2016|Edugear CMT Chromebook' ;;
    WIZPIG_???-???-??C*) _x='FS|BSW|2016|Haier Convertible Chromebook 11 C' ;;
    WIZPIG_???-???-??D*) _x='FS|BSW|2016|Viglen Chromebook 360' ;;
    WIZPIG_???-???-??G*) _x='FS|BSW|2017|Prowise ProLine Chromebook' ;;
    WIZPIG_???-???-??H*) _x='FS|BSW|2016|PCMerge Chromebook PCM-116T-432B' ;;
    WIZPIG*)        _x='FS|BSW|2016|(unknown WIZPIG)' ;;
    WOLF*)          _x='RS|HSW|2014|Dell Chromebook 11' ;;
    X86_WOLF*)      _x='RS|HSW|2014|Dell Chromebook 11' ;;
    YUNA*)          _x='OK|BDW|2014|Acer Chromebook 15 (CB5-571, C910)' ;;
    AURON_YUNA*)    _x='OK|BDW|2014|Acer Chromebook 15 (CB5-571, C910)' ;;
    ZAKO*)          _x='RS|HSW|2014|HP Chromebox CB1/G1/for Meetings' ;;
    #*)              _='|||' ;;
  esac

  _prognosis=`echo $_x | cut -d\| -f1`
  _cpuf=`echo $_x | cut -d\| -f2`
  _year=`echo $_x | cut -d\| -f3`
  _desc=`echo $_x | cut -d\| -f4-`

  ## CPU family, Processor core, other distinguishing characteristic
  case "$_cpuf" in
    ARM) _cpuf="ARM" ;;
    PNV) _cpuf="Intel Pineview" ;;
    SNB) _cpuf="Intel Sandy Bridge" ;;
    IVB) _cpuf="Intel Ivy Bridge" ;;
    HSW) _cpuf="Intel Haswell" ;;
    BYT) _cpuf="Intel Bay Trail" ;;
    BDW) _cpuf="Intel Broadwell" ;;
    BSW) _cpuf="Intel Braswell" ;;
    SKL) _cpuf="Intel Skylake" ;;
    APL) _cpuf="Intel Apollo Lake" ;;
    KBL) _cpuf="Intel Kaby Lake" ;;
    #*)   _cpuf="(unrecognized)" ;;
  esac

  eval $_outvar_hwid=\$_hwid
  eval $_outvar_desc=\$_desc
  eval $_outvar_year=\$_year
  eval $_outvar_cpuf=\$_cpuf
  eval $_outvar_prognosis=\$_prognosis
}

get_os_version_and_core_url_dev_ubuntu()
{
  release_log_fn="meta-release-development"
  release_log_url="http://changelogs.ubuntu.com/${release_log_fn}"
  release_log="`curl -s ${release_log_url}`"
  codename=`echo "${release_log}"|grep "^Dist: "|tail -1|awk '{print $2}'`
  CHRX_OS_VERSION=`echo "${release_log}"|grep "^Version: "|tail -1|awk '{print $2}'`
  CHRX_OS_CORE_IMAGE_URL="http://cdimage.ubuntu.com/ubuntu-base/daily/current/${codename}-base-${CHRX_OS_ARCH}.tar.gz"
}

get_os_version_ubuntu()
{
  tag=$1
  release_log_fn="meta-release"
  release_log_url="http://changelogs.ubuntu.com/${release_log_fn}"
  version_list="`curl -s ${release_log_url} | grep '^Version: '`"
  [ "$tag" = "lts" ] && version_list=`echo "${version_list}" | grep "LTS"`
  CHRX_OS_VERSION=`echo "${version_list}" | tail -1 | awk '{print $2}'`
}

determine_osv_ubuntu()
{
  case "${CHRX_OS_RELEASE}" in
    trusty) CHRX_OS_VERSION="14.04.5" ;;
    utopic) CHRX_OS_VERSION="14.10" ;;
    vivid)  CHRX_OS_VERSION="15.04" ;;
    wily)   CHRX_OS_VERSION="15.10" ;;
    xenial) CHRX_OS_VERSION="16.04.2" ;;
    zesty)  CHRX_OS_VERSION="16.10" ;;
    dev)    get_os_version_and_core_url_dev_ubuntu $CHRX_OS_RELEASE ;;
    lts)    get_os_version_ubuntu $CHRX_OS_RELEASE ;;
    latest) get_os_version_ubuntu $CHRX_OS_RELEASE ;;
    *)      CHRX_OS_VERSION=${CHRX_OS_RELEASE} ;;
  esac

  local _ubuntu_corebase='base'

  case "${CHRX_OS_VERSION}" in
    '14.04'|'14.04.1'|'14.04.2'|'14.04.3'|'14.04.4')
      _ubuntu_corebase='core'
      msg_os_version="${ANSI_YEL}(CAUTION: not well-tested!)${ANSI_RST}"
      ;;
    "14.04.*")
      msg_os_version="${ANSI_YEL}(CAUTION: not well-tested!)${ANSI_RST}"
      ;;
    '14.10'|'15.04'|'15.10')
      msg_os_version="${ANSI_YEL}(ERROR: no longer available!)${ANSI_RST}"
      FAIL=1
      ;;
    '16.04')
      _ubuntu_corebase='core'
      ;;
    "16.04.*") ;;
    '16.10') ;;
    *)
      if [ "`echo ${CHRX_OS_VERSION} | grep "^[0-9.][0-9.]*$"`" ]; then
        msg_os_version="${ANSI_YEL}(CAUTION: untested!)${ANSI_RST}"
      else
        msg_os_version="${ANSI_RED}(invalid!)${ANSI_RST}"
        FAIL=1
      fi
      ;;
  esac

  if [ -z "${CHRX_OS_CORE_IMAGE_URL}" ]; then
    CHRX_OS_CORE_IMAGE_URL="http://cdimage.ubuntu.com/ubuntu-base/releases/${CHRX_OS_VERSION}/release/ubuntu-base-${CHRX_OS_VERSION}-${_ubuntu_corebase}-${CHRX_OS_ARCH}.tar.gz"
  fi

}

get_os_version_galliumos()
{
  local _release=$1
  CHRX_OS_VERSION="2.1"
}

get_mirror_url_galliumos()
{
  local _mirror=$1

  case "$_mirror" in
    #ny1.us) CHRX_OS_MIRROR="https://galliumos.org/releases" ;;
    va1.us) CHRX_OS_MIRROR="https://va1.us.mirror.galliumos.org/releases" ;;
    ca1.us) CHRX_OS_MIRROR="https://ca1.us.mirror.galliumos.org/releases" ;;
    rb1.fr) CHRX_OS_MIRROR="https://rb1.fr.mirror.galliumos.org/releases" ;;
    *)      CHRX_OS_MIRROR="https://galliumos.org/releases" ;;
  esac
  echo "$CHRX_OS_MIRROR"
}

determine_osv_galliumos()
{
  local _url_base=$(get_mirror_url_galliumos $CHRX_OS_MIRROR)
  local _url_path

  local _versions_file_url="${_url_base_primary}/VERSIONS"
  #versions_file="`curl -s ${versions_file_url}`"

  case "${CHRX_OS_RELEASE}" in
    '1.0'|vivid) CHRX_OS_VERSION="1.0" ;;
    '2.0')       CHRX_OS_VERSION="2.0" ;;
    '2.1'|xenon) CHRX_OS_VERSION="2.1" ;;
    latest)      get_os_version_galliumos $CHRX_OS_RELEASE ;;
    dev|nightly)
      CHRX_OS_VERSION="nightly"
      msg_os_version="${ANSI_YEL}(NOTE: nightly build!)${ANSI_RST}"
      _url_path="/nightly/galliumos-generic-coreimage-xenon-latest.tgz"
      CHRX_OS_CORE_IMAGE_URL="${_url_base}${_url_path}"
      ;;
    *)
      msg_os_version="${ANSI_YEL}(NOTE: unrecognized!)${ANSI_RST}"
      CHRX_OS_VERSION=${CHRX_OS_RELEASE}
      ;;
  esac

  if [ -z "${CHRX_OS_CORE_IMAGE_URL}" ]; then
    _url_path="/$CHRX_OS_VERSION/galliumos-generic-coreimage-$CHRX_OS_VERSION.tgz"
    CHRX_OS_CORE_IMAGE_URL="${_url_base}${_url_path}"
  fi

  case "${CHRX_OS_VERSION}" in
    '1.0') msg_os_version="${ANSI_YEL}(CAUTION: deprecated!)${ANSI_RST}" ;;
    '2.0') msg_os_version="${ANSI_YEL}(NOTE: newer version available)${ANSI_RST}" ;;
    '2.1') ;;
  esac
}

get_os_version_fedora()
{
  release_log_url="http://dl.fedoraproject.org/pub/fedora/linux/releases/"
  version_list=$(curl -s ${release_log_url} | grep -Eo ">[0-9][0-9]/" | grep -o "[0-9][0-9]")
  CHRX_OS_VERSION=$(echo "${version_list}" | sort | tail -1)
  # default to 25
  if [[ $CHRX_OS_VERSION != [0-9][0-9] ]]; then
    CHRX_OS_VERSION=25
  fi
}

determine_osv_fedora()
{
  msg_os_version="${ANSI_YEL}(CAUTION: chrx support is beta!)${ANSI_RST}"
  case "${CHRX_OS_RELEASE}" in
    latest)
      get_os_version_fedora
      ;;
    24,25)
      CHRX_OS_VERSION=${CHRX_OS_RELEASE}
      ;;
    rawhide)
      CHRX_OS_VERSION=${CHRX_OS_RELEASE}
      msg_os_version="${ANSI_YEL}(CAUTION: development version; may not work!)${ANSI_RST}"
      ;;
    *)
      if [[ ${CHRX_OS_RELEASE} == [0-9][0-9] ]]; then
        CHRX_OS_VERSION=${CHRX_OS_RELEASE}
        msg_os_version="${ANSI_YEL}(CAUTION: untested!)${ANSI_RST}"
      else
        msg_os_version="${ANSI_RED}(invalid!)${ANSI_RST}"
        FAIL=1
      fi
      ;;
  esac
  
  CHRX_OS_CORE_IMAGE_URL='https://download.fedoraproject.org/pub/fedora/linux/releases/25/Docker/x86_64/images/Fedora-Docker-Base-25-1.3.x86_64.tar.xz'
  
}

set_customizations_ubuntu()
{
  SKEL_FILES="
    etc/skel/.config/lxpanel/Lubuntu/config
    etc/skel/.config/lxpanel/Lubuntu/panels/panel
    etc/skel/.xbindkeysrc
    etc/skel/.xsessionrc
  "

  CONF_FILES="
    etc/modprobe.d/ath9k.conf
    etc/modprobe.d/snd-hda-intel.conf
    etc/udev/rules.d/10-disable-ehci.rules
    etc/X11/xorg.conf
    etc/X11/xorg.conf.d/20-intel-graphics.conf
    etc/X11/xorg.conf.d/50-cyapa-touchpad.conf
  "

  EXEC_FILES="
    etc/rc.local
    etc/initramfs-tools/scripts/init-top/unbind_ehci
    etc/pm/sleep.d/50-audio-intel-driver
    etc/pm/sleep.d/89-wifi-ath9k-module
  "
    #etc/init.d/chrx-firstboot

  APPENDED_FILES="
    etc/sysctl.conf
    etc/systemd/logind.conf
  "

  set_hidden_partitions_conf
  CHRX_CONFIGURE_GRUB_ENABLED=1
}

set_customizations_galliumos()
{
  set_hidden_partitions_conf
  CHRX_CONFIGURE_GRUB_ENABLED=1
}

set_customizations_fedora()
{
  SKEL_FILES="
    etc/skel/.xbindkeysrc
    etc/skel/.config/autostart/xbindkeys.desktop
    etc/skel/.config/autostart/chrx_touchpad_support.desktop
  "

  CONF_FILES="
    etc/modprobe.d/ath9k.conf
    etc/modprobe.d/snd-hda-intel.conf
    etc/udev/rules.d/10-disable-ehci.rules
    etc/X11/xorg.conf.d/20-intel-graphics.conf
    etc/X11/xorg.conf.d/50-cyapa-touchpad.conf
    etc/X11/xorg.conf.d/70-synaptics.conf
    etc/selinux/config
  "

  EXEC_FILES="
    etc/rc.local
    etc/initramfs-tools/scripts/init-top/unbind_ehci
    etc/pm/sleep.d/50-audio-intel-driver
    etc/pm/sleep.d/89-wifi-ath9k-module
    etc/skel/.local/bin/chrx_touchpad_support.sh
  "

  APPENDED_FILES="
    etc/sysctl.conf
    etc/systemd/logind.conf
  "

  set_hidden_partitions_conf
  CHRX_CONFIGURE_GRUB_ENABLED=
}

set_hidden_partitions_conf()
{
  local _rootdev=$(rootdev -d -s)

  case "$_rootdev" in
    "/dev/mmcblk0")
      CONF_FILES+="etc/udev/rules.d/99-hide-disks-mmc.rules "
      if [ "$CHRX_OS_DISTRO" = "fedora" ]; then
        CONF_FILES+="etc/dracut.conf.d/mmc.conf "
      fi
      ;;
    "/dev/sda")
      CONF_FILES+="etc/udev/rules.d/99-hide-disks-sda.rules "
      ;;
    *)
      echo_warn "unexpected root device \"$_rootdev\""
      ;;
  esac
}

install_customizations()
{
  echo_info "\nInstalling chrx customization files for ${CHRX_OS_DISTRO_DISPLAYNAME}."

  for fpath in ${CONF_FILES} ${EXEC_FILES} ${SKEL_FILES} ${APPENDED_FILES}; do
    if [ ! -d "${CHRX_INSTALL_ROOT}/`dirname ${fpath}`" ]; then
      #echo mkdir -p "${CHRX_INSTALL_ROOT}/`dirname ${fpath}`"
      install ${VERBOSITY_INSTALL} -d "${CHRX_INSTALL_ROOT}/`dirname ${fpath}`"
    fi
  done

  for fpath in ${SKEL_FILES}; do
    install ${VERBOSITY_INSTALL} -m 644 ./dist/${fpath} ${CHRX_INSTALL_ROOT}/${fpath}
  done
  for fpath in ${CONF_FILES}; do
    install ${VERBOSITY_INSTALL} -m 644 ./dist/${fpath} ${CHRX_INSTALL_ROOT}/${fpath}
  done
  for fpath in ${EXEC_FILES}; do
    install ${VERBOSITY_INSTALL} -m 755 ./dist/${fpath} ${CHRX_INSTALL_ROOT}/${fpath}
  done
  for fpath in ${APPENDED_FILES}; do
    cat ./dist/${fpath}-append >> ${CHRX_INSTALL_ROOT}/${fpath}
  done
}

report_unrecognized_device()
{
  dmi_sm=`dmidecode -s system-manufacturer`
  dmi_pv=`dmidecode -s processor-version`
  cat <<- EOMSG
  ... You're running an unrecognized Chrome device! That's exciting.
  ...
  ... Inspecting your hardware reveals:
  ...   hardware-id:         ${CHRX_HWID-(unknown)}
  ...   system-manufacturer: ${dmi_sm}
  ...   processor-version:   ${dmi_pv}
  ...
  ... Please take a moment to describe your device (manufacturer,
  ... model, country of sale) and we will add it to the database.
  ...
  ...   Example: "Google, Chromebook Pixel, US"
  ...
  ... Thank you for your help. If you've already sent your device info,
  ... we apologize for the repeated requests. The database should be
  ... updated soon!
  ...
  ... (to skip, just enter a blank line)

	EOMSG

  echo_prompt "Please describe your device: \c"
  prompt_if_interactive
  if [ "${PROMPT_RESPONSE}" ]; then
    ping_chrx_org "unrecognized_device" "${dmi_sm}/${dmi_pv}/${PROMPT_RESPONSE}"
    echo "Thanks! We'll add your device to the database!"
  fi
}

check_support_for_legacy_boot()
{
  echo_info "Checking hardware support for legacy boot...  \c"

  if [ ! -x /usr/sbin/mosys ]; then
    echo_fail "ERROR"
    cat <<- EOMSG
      ${ANSI_RED}
      Can't find /usr/sbin/mosys. Make sure you are running the default
      developer mode Linux shell, logged in as chronos@localhost.
      ${ANSI_RST}
	EOMSG

    ping_chrx_org "fail_mosys"
    exit 1
  fi

  if [ -z "`/usr/sbin/mosys eeprom map | grep RW_LEGACY`" ]; then
    echo_fail "ERROR"
    cat <<- EOMSG
      ${ANSI_RED}
      This Chrome device does not support CTRL-L Legacy SeaBIOS booting.

      You might have better luck with the old ChrUbuntu script.
      ${ANSI_RST}
	EOMSG

    ping_chrx_org "fail_rwlegacy"
    exit 1
  else
    echo_info "OK"
  fi
}

setup_and_validate_environment()
{

  if [ "`initctl status powerd | grep running 2>/dev/null`" ]; then
    initctl stop powerd > /dev/null 2>&1
  fi
  ## prevent screen blanking whilst installing
  ## setterm --blank doesn't work in new VT2 shell, which claims xterm
  #export TERM=linux  ## ?
  #setterm -blank 0

  cat <<- EOMSG
    Hardware ID: ${CHRX_HWID}
    Model:       ${CHRX_HWDESC-(unknown)}
    Released:    ${CHRX_HWYEAR-(unknown)}
    CPU Family:  ${CHRX_HWCPUF-(unknown)}
	EOMSG

  echo -e "    Prognosis:   \c"

  case "${CHRX_HWSTATUS}" in
    OK) echo_info "success likely, model is well-tested" ;;
    RS) echo_info "success likely, per field reports" ;;
    FS) echo_warn "success likely, ONLY IF FIRMWARE HAS BEEN UPDATED!" ;;
    ES) echo_warn "success likely, but unverified" ;;
    UN) echo_warn "uncertain; no field reports" ;;
    EF) echo_fail "failure likely, but unverified" ;;
    RF) echo_fail "failure likely, per field reports" ;;
    NG) echo_fail "FAILURE! cannot possibly succeed" ;;
    *)  echo_warn "UNKNOWN, model is unrecognized and untested" ;;
  esac
  echo

  if [ -z "${CHRX_HWDESC}" ]; then
    report_unrecognized_device
  fi

  HOST_IS_CHROMEOS=$(grep "^CHROMEOS" /etc/lsb-release)
  if [ "$HOST_IS_CHROMEOS" ]; then
    check_support_for_legacy_boot
  else
    echo -e "Skipping legacy boot check, because this is not ChromeOS.\n"
  fi
}

setup_storage()
{
  SETUP_STORAGE_ERROR="failed"

  curl -Os -A "${CHRX_UA}" ${CHRX_WEB_ROOT}/chrx-setup-storage
  [ -r ./chrx-setup-storage ] && . ./chrx-setup-storage

  if [ "${SETUP_STORAGE_ERROR}" ]; then
    echo_fail "fatal error from chrx-setup-storage. exiting!"
    exit 1
  fi
}

validate_config()
{
  ## validate config
  case "${CHRX_OS}" in
    linux) ;;
    *) msg_os="${ANSI_RED}invalid${ANSI_RST}" ; FAIL=1 ;;
  esac

  case "${CHRX_OS_DISTRO}" in
    ubuntu)
      CHRX_OS_DISTRO_DISPLAYNAME='Ubuntu'
      osv_method="ubuntu"
      customization_set="ubuntu"
      valid_envs="minimal,standard,desktop"
      ;;
    edubuntu)
      CHRX_OS_DISTRO_DISPLAYNAME='Edubuntu'
      osv_method="ubuntu"
      customization_set="ubuntu"
      valid_envs="server,desktop"
      ;;
    kubuntu)
      CHRX_OS_DISTRO_DISPLAYNAME='Kubuntu'
      osv_method="ubuntu"
      customization_set="ubuntu"
      valid_envs="desktop"
      ;;
    lubuntu)
      CHRX_OS_DISTRO_DISPLAYNAME='Lubuntu'
      osv_method="ubuntu"
      customization_set="ubuntu"
      valid_envs="desktop"
      ;;
    xubuntu)
      CHRX_OS_DISTRO_DISPLAYNAME='Xubuntu'
      osv_method="ubuntu"
      customization_set="ubuntu"
      valid_envs="desktop"
      ;;
    galliumos)
      CHRX_OS_DISTRO_DISPLAYNAME='GalliumOS'
      osv_method="galliumos"
      customization_set="galliumos"
      valid_envs="desktop"
      ;;
    fedora)
      CHRX_OS_DISTRO_DISPLAYNAME='Fedora'
      osv_method="fedora"
      customization_set="fedora"
      valid_envs="desktop,workstation,kde,xfce,lxde,mate,cinnamon,sugar,minimal,basic"
      ;;
    *)
      CHRX_OS_DISTRO_DISPLAYNAME='Unix/Linux'
      msg_os_dist="${ANSI_RED}invalid${ANSI_RST}"
      FAIL=1
      ;;
  esac

  if [ -z "${FAIL}" -a -z "`echo ${valid_envs} | grep -w ${CHRX_OS_ENVIRONMENT}`" ]; then
    msg_os_env="${ANSI_RED}invalid${ANSI_RST}, try ${valid_envs}"
    FAIL=1
  fi
  CHRX_OS_DISTENV="${CHRX_OS_DISTRO}-${CHRX_OS_ENVIRONMENT}"

  case "${osv_method}" in
    ubuntu)    determine_osv_ubuntu ;;
    galliumos) determine_osv_galliumos ;;
    fedora)    determine_osv_fedora ;;
  esac

  case "${customization_set}" in
    ubuntu)    set_customizations_ubuntu ;;
    galliumos) set_customizations_galliumos ;;
    fedora)    set_customizations_fedora ;;
  esac

  case "${CHRX_OS_ARCH}" in
    i386|amd64) ;;
    *) msg_os_arch="${ANSI_RED}invalid${ANSI_RST}" ; FAIL=1 ;;
  esac

  if [ "$CHRX_OS_DISTRO" != "galliumos" -a ! -z "$CHRX_OS_MIRROR" ]; then
    msg_os_mirror="${ANSI_RED}unknown, will use primary${ANSI_RST}"
  fi
}

confirm_config()
{
  validate_config

  cat <<- EOCONFIG

    Installing
      operating system:   ${CHRX_OS} ${msg_os}
      distribution (-d):  ${CHRX_OS_DISTRO} ${msg_os_dist}
      environment (-e):   ${CHRX_OS_ENVIRONMENT} ${msg_os_env}
      release (-r):       ${CHRX_OS_RELEASE} ${msg_os_release}
        version:          ${CHRX_OS_VERSION} ${msg_os_version}
      architecture (-a):  ${CHRX_OS_ARCH} ${msg_os_arch}
      mirror (-m):        ${CHRX_OS_MIRROR} ${msg_os_mirror}
      target_disk (-t):   ${CHRX_TARGET_DISK}
      packages (-p):      ${CHRX_ADD_PKGS}${msg_os_pkgs}

    System Configuration
      hostname (-H):      ${CHRX_HOSTNAME}
      username (-U):      ${CHRX_USERNAME}
      locale (-L):        ${CHRX_LOCALE}
      timezone (-Z):      ${CHRX_TZ}

	EOCONFIG


  if [ "${FAIL}" ]; then
    echo_fail "fatal error(s) in configuration options (see above). exiting!"
    exit 1
  fi

  if [ -z "${CHRX_CUSTOMIZATION_ENABLED}" ]; then
    cat <<- EOMSG
${ANSI_YEL}\
    .----------------------------------------------------------------.
    | NOTE: Installing stock OS only, skipping chrx customizations.  |
    '----------------------------------------------------------------'
${ANSI_RST}
	EOMSG
  fi

  echo_note "Press [enter] to confirm and continue: \c"
  prompt_if_interactive
}

do_install()
{
  start_date=`date`
  start_secs=`date +%s`

  if [ -z "${CHRX_OS_CORE_IMAGE_URL}" ]; then
    echo_fail "fatal: cannot determine core image URL from options specified. This might be a bug!"
    exit 1
  fi

  echo_info "\nFetching ${CHRX_OS_DISTRO_DISPLAYNAME} core image file..."
  echo_info "HTTP GET ${CHRX_OS_CORE_IMAGE_URL}"

  ## "--retry 8 --continue-at -" opts won't help when piped to tar, and
  ## /tmp is only 1GB on some devices, so we have no good options here.
  ## TODO: add opts to other (non-piped) curl calls.
  case "${osv_method}" in
  galliumos|ubuntu)
    curl -o - ${VERBOSITY_CURL} ${CHRX_OS_CORE_IMAGE_URL} | tar xzp -C ${CHRX_INSTALL_ROOT}
    if [ ${PIPESTATUS[0]} -ne 0 -o ${PIPESTATUS[1]} -ne 0 ]; then
      echo_fail "fatal: unable to download and extract core image file."
      exit 1
    fi
    ;;
  fedora)
    ## There is no good source of images for all versions of fedora, so
    ## pull in a docker image and use this to install a core version
    ## of fedora
    mkdir -p ${CHRX_INSTALL_ROOT}/fedora
    curl -L -o - ${VERBOSITY_CURL} ${CHRX_OS_CORE_IMAGE_URL} | tar xJp -C ${CHRX_INSTALL_ROOT}/fedora
    if [ ${PIPESTATUS[0]} -ne 0 -o ${PIPESTATUS[1]} -ne 0 ]; then
      echo_fail "fatal: unable to download and extract core image file."
      exit 1
    fi
    tar xfp  ${CHRX_INSTALL_ROOT}/fedora/*/layer.tar -C ${CHRX_INSTALL_ROOT}/fedora
    cat /etc/resolv.conf > ${CHRX_INSTALL_ROOT}/fedora/etc/resolv.conf
   
    eval_crit mount -o bind /proc    ${CHRX_INSTALL_ROOT}/fedora/proc
    eval_crit mount -o bind /dev     ${CHRX_INSTALL_ROOT}/fedora/dev
    eval_crit mount -o bind /dev/pts ${CHRX_INSTALL_ROOT}/fedora/dev/pts
    eval_crit mount -o bind /sys     ${CHRX_INSTALL_ROOT}/fedora/sys
    eval_crit mount -o bind /run     ${CHRX_INSTALL_ROOT}/fedora/run

    eval_crit mount -o bind ${CHRX_INSTALL_ROOT}     ${CHRX_INSTALL_ROOT}/fedora/mnt
    
    echo_info "\nInstalling Fedora core packages..."
    chroot ${CHRX_INSTALL_ROOT}/fedora /bin/bash -c "dnf ${VERBOSITY_DNF} -y --nogpgcheck --releasever=${CHRX_OS_VERSION} --installroot=/mnt/ group install core"

    umount ${CHRX_INSTALL_ROOT}/fedora/mnt
    umount ${CHRX_INSTALL_ROOT}/fedora/proc
    umount ${CHRX_INSTALL_ROOT}/fedora/dev/pts
    umount ${CHRX_INSTALL_ROOT}/fedora/dev
    umount ${CHRX_INSTALL_ROOT}/fedora/sys
    umount ${CHRX_INSTALL_ROOT}/fedora/run

    rm -rf ${CHRX_INSTALL_ROOT}/fedora
    ;;
  esac

  eval_crit mount -o bind /proc    ${CHRX_INSTALL_ROOT}/proc
  eval_crit mount -o bind /dev     ${CHRX_INSTALL_ROOT}/dev
  eval_crit mount -o bind /dev/pts ${CHRX_INSTALL_ROOT}/dev/pts
  eval_crit mount -o bind /sys     ${CHRX_INSTALL_ROOT}/sys
  eval_crit mount -o bind /run     ${CHRX_INSTALL_ROOT}/run

  if [ -f /usr/bin/old_bins/cgpt ]; then
    cp /usr/bin/old_bins/cgpt ${CHRX_INSTALL_ROOT}/usr/bin/
  else
    cp /usr/bin/cgpt ${CHRX_INSTALL_ROOT}/usr/bin/
  fi
  chmod a+rx ${CHRX_INSTALL_ROOT}/usr/bin/cgpt

  ## The chroot needs a valid resolv.conf, so bring it over from ChromeOS
  ## cat in case resolv.conf is a symlink (e.g. into /run/resolvconf etc)
  ## sometimes /etc/resolv.conf is a dangling symlink, so fix parent dirs
  mkdir -p ${CHRX_INSTALL_ROOT}/run/resolvconf
  cat /etc/resolv.conf > ${CHRX_INSTALL_ROOT}/etc/resolv.conf

  echo ${CHRX_HOSTNAME} > ${CHRX_INSTALL_ROOT}/etc/hostname
  echo -e "\n127.0.0.1       ${CHRX_HOSTNAME}" >> ${CHRX_INSTALL_ROOT}/etc/hosts

  ## get customization files
  mkdir -p ${CHRX_INSTALL_ROOT}${CHRX_CACHE_DIR}
  cd ${CHRX_INSTALL_ROOT}${CHRX_CACHE_DIR}
  curl ${VERBOSITY_CURL} ${CHRX_WEB_ROOT}/dist.tar.gz | tar xz --no-same-owner
  
  if [ "${CHRX_CUSTOMIZATION_ENABLED}" ]; then
    install_customizations
  else
    echo_warn "\n(skipping installation of chrx customization files)"
  fi


  ## chroot
  export CHRX_OS_DISTRO CHRX_OS_ENVIRONMENT CHRX_OS_DISTENV
  export CHRX_CUSTOMIZATION_ENABLED
  export CHRX_OS_DISTRO_DISPLAYNAME CHRX_HWCPUF
  export CHRX_TZ CHRX_LOCALE CHRX_USERNAME
  export CHRX_TARGET_DISK CHRX_ROOT_PARTITION CHRX_CACHE_DIR CHRX_INSTALL_ROOT
  export CHRX_OS_RELEASE CHRX_ADD_PKGS CHRX_CONFIGURE_GRUB_ENABLED
  export VERBOSITY VERBOSITY_APTGET VERBOSITY_CURL VERBOSITY_DNF
  export ANSI_RED ANSI_YEL ANSI_GRN ANSI_VIO ANSI_BLU ANSI_WHT ANSI_RST
  export -f echo_info ## this does not reach the chroot

  install ${VERBOSITY_INSTALL} -m 755 ./dist/chrx-install-chroot ${CHRX_INSTALL_ROOT}${CHRX_CACHE_DIR}

  echo ">> entering chroot"
  chroot ${CHRX_INSTALL_ROOT} /bin/bash -c ${CHRX_CACHE_DIR}/chrx-install-chroot
  # | tee -a ${CHRX_LOGFILE}
  echo "<< exiting chroot"

  ## untested bits from ChrUbuntu ... TODO: test
  #if echo `crossystem hwid` | grep -q "^PANTHER "; then
  #  echo_green "Fixing SeaBIOS on ASUS Chromebox"
  #  echo_green "Thanks to John Lewis"
  #  echo_green "http://johnlewis.ie/asus-chromebox-owners-rejoice/"
  #  wget http://johnlewis.ie/asus-chromebox-SeaBIOS-new.bin
  #  flashrom -w -i RW_LEGACY:asus-chromebox-SeaBIOS-new.bin
  #fi

  ## set eeprom bits
  #crossystem dev_boot_legacy=1 dev_boot_signed_only=1
  [ "$HOST_IS_CHROMEOS" ] && crossystem dev_boot_legacy=1

  ## wind up
  finish_date=`date`
  finish_secs=`date +%s`
  elapsed_time=$(( (${finish_secs}-${start_secs})/60 ))m$(( (${finish_secs}-${start_secs})%60 ))s

  cat <<- EOMSG


  ${ANSI_YEL}chrx installer is finished!${ANSI_RST}

     started: ${start_date}
    finished: ${finish_date}
     elapsed: ${elapsed_time}

  Installation log files will be preserved in ${CHRX_CACHE_DIR}

  After reboot, at the white "OS verification is OFF" screen, press:

    ${ANSI_YEL}CTRL-D${ANSI_RST} to boot ChromeOS, or
    ${ANSI_GRN}CTRL-L${ANSI_RST} to boot ${CHRX_OS_DISTRO_DISPLAYNAME}.

  Your login is:

    username: ${ANSI_WHT}${CHRX_USERNAME}${ANSI_RST}
    password: ${ANSI_WHT}${CHRX_USERNAME}${ANSI_RST}

  ${ANSI_RED}Be sure to change your password after log in!${ANSI_RST}

	EOMSG

  cp -r ${CHRX_CACHE0_DIR}/chrx-* ${CHRX_INSTALL_ROOT}${CHRX_CACHE_DIR}/
}

parse_opts()
{
  ## parse command line options
  ## TODO: lubuntu[-desktop[-latest]] should be parseable
  while getopts ":d:e:r:a:m:t:p:H:U:L:Z:nsyvh" OPTION
  do
    case "$OPTION" in
      d) CHRX_OS_DISTRO=$(downcase $OPTARG) ;;
      e) CHRX_OS_ENVIRONMENT=$(downcase $OPTARG) ;;
      r) CHRX_OS_RELEASE=$(downcase $OPTARG) ;;
      a) CHRX_OS_ARCH=$(downcase $OPTARG) ;;
      m) CHRX_OS_MIRROR=$(downcase $OPTARG) ;;
      t) CHRX_TARGET_DISK=$OPTARG ;;
      p) CHRX_ADD_PKGS="${CHRX_ADD_PKGS}$(downcase $OPTARG) " ;;
      H) CHRX_HOSTNAME=$OPTARG ;;
      U) CHRX_USERNAME=$OPTARG ;;
      L) CHRX_LOCALE=$OPTARG ;;
      Z) CHRX_TZ=$OPTARG ;;
      n) CHRX_NOTIFY_ENABLED= ;;
      s) CHRX_CUSTOMIZATION_ENABLED= ;;
      y) CHRX_PROMPT_ENABLED= ;;
      v) VERBOSITY="v"
         VERBOSITY_APTGET=""
         VERBOSITY_MKFS=""
         VERBOSITY_CURL=""
         VERBOSITY_DNF="-v"
         VERBOSITY_INSTALL="-v"
         ;;
      h) usage ;;
      '?')
         [ "$OPTARG" = "?" ] && usage
         echo_fail "unrecognized option: '-${OPTARG}'" ; exit 1 ;;
    esac
  done
}

main()
{
  parse_opts "$@"

  echo_note "chrx installer, version ${CHRX_VERSION}\n"
  identify_hardware CHRX_HWID CHRX_HWDESC CHRX_HWYEAR CHRX_HWCPUF CHRX_HWSTATUS

  ping_chrx_org "begin"

  setup_and_validate_environment
  setup_storage

  confirm_config
  do_install

  ping_chrx_org "end_ok"

  echo_note "Press [enter] when ready to reboot: \c"
  prompt_if_interactive

  ## reboot without dropping user back to shell
  if [ -z "$CHRX_NO_REBOOT" ]; then
    reboot
    sleep 10
  fi
}

#set -e
main "$@"