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autoconfig.functions
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autoconfig.functions
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#!/bin/zsh
# Filename: autoconfig.functions
# Purpose: basic system configuration and hardware setup for grml system
# Authors: grml-team (grml.org), (c) Michael Prokop <mika@grml.org>
# Bug-Reports: see http://grml.org/bugs/
# License: This file is licensed under the GPL v2.
################################################################################
# {{{ path, variables, signals, umask, zsh
export PATH="/bin:/sbin:/usr/bin:/usr/sbin"
DEBUG="/dev/null"
KERNEL="$(uname -r)"
ARCH="$(uname -m)"
umask 022
# initramfs layout since December 2012, backwards compatibility:
[ -d /lib/live/mount/medium ] && export LIVECD_PATH='/lib/live/mount/medium'
# initramfs layout since December 2018:
[ -d /run/live/medium ] && export LIVECD_PATH='/run/live/medium'
# Ignore these signals in non-interactive mode: INT, TERM, SEGV
[ -z "$PS1" ] && trap "" 2 3 11
if [ "$(cat /proc/1/comm 2>/dev/null)" = "systemd" ] ; then
SYSTEMD=true
else
SYSTEMD=false
fi
service_wrapper() {
if [ "$#" -lt 2 ] ; then
echo "Usage: service_wrapper <service> <action> [background]" >&2
return 1
fi
local service="$1"
local action="$2"
local background="$3"
if $SYSTEMD ; then
systemctl "$action" "$service"
else
if [ "${background:-}" = "background" ] ; then
/etc/init.d/"$service" "$action" &
else
/etc/init.d/"$service" "$action"
fi
fi
}
# zsh stuff
iszsh(){
if [ -n "$ZSH_VERSION" ] ; then
return 0
else
return 1
fi
}
# avoid 'no matches found: ...'
iszsh && setopt no_nomatch # || echo "Warning: not running under zsh!"
# }}}
# {{{ Read in boot parameters
if [ -z "$CMDLINE" ]; then
# if CMDLINE was set from the outside, we're debugging.
# otherwise, take CMDLINE from Kernel and config files.
CMDLINE="$(cat /proc/cmdline)"
[ -d ${LIVECD_PATH}/bootparams/ ] && CMDLINE="$CMDLINE $(cat ${LIVECD_PATH}/bootparams/* | tr '\n' ' ')"
modprobe 9p 2>/dev/null || true
if grep -q 9p /proc/filesystems ; then
TAG="grml-parameters"
if grep -q "$TAG" /sys/bus/virtio/devices/*/mount_tag 2>/dev/null ; then
MOUNTDIR="$(mktemp -d)"
mount -t 9p -o trans=virtio,ro "$TAG" "$MOUNTDIR"
CMDLINE="$CMDLINE $(cat "$MOUNTDIR"/* 2>/dev/null | tr '\n' ' ')"
umount "$MOUNTDIR"
rmdir "$MOUNTDIR"
fi
fi
fi
# }}}
### {{{ Utility Functions
# Get a bootoption's parameter: read boot command line and either
# echo last parameter's argument or return false.
getbootparam(){
local line
local ws
ws=' '
line=" $CMDLINE "
case "$line" in
*[${ws}]"$1="*)
result="${line##*[$ws]$1=}"
result="${result%%[$ws]*}"
echo "$result"
return 0 ;;
*) # no match?
return 1 ;;
esac
}
# Check boot commandline for specified option
checkbootparam(){
[ -n "$1" ] || ( echo "Error: missing argument to checkbootparam()" ; return 1 )
local line
local ws
ws=' '
line=" $CMDLINE "
case "$line" in
*[${ws}]"$1"=*|*[${ws}]"$1"[${ws}]*)
return 0 ;;
*)
return 1 ;;
esac
}
# Check if currently using a framebuffer
hasfb() {
[ -e /dev/fb0 ] && return 0 || return 1
}
# Check wheter a configuration variable (like $CONFIG_TOHD) is
# enabled or not
checkvalue(){
case "$1" in
[yY][eE][sS]) return 0 ;; # it's set to 'yes'
[tT][rR][uU][eE]) return 0 ;; # it's set to 'true'
*) return 1 ;; # default
esac
}
# Are we using grml-small?
checkgrmlsmall(){
grep -q small /etc/grml_version 2>>$DEBUG && return 0 || return 1
}
# if no password is set return a random password
set_passwd() {
[ -n "$PASSWD" ] && return 0
if [ -x /usr/bin/apg ] ; then
PASSWD="$(apg -M NL -a 0 -m 8 -x 12 -n 1)"
elif [ -x /usr/bin/gpw ] ; then
PASSWD="$(gpw 1)"
elif [ -x /usr/bin/pwgen ] ; then
PASSWD="$(pwgen -1 8)"
elif [ -x /usr/bin/hexdump ] ; then
PASSWD="$(dd if=/dev/urandom bs=14 count=1 2>/dev/null | hexdump | awk '{print $3 $4}')"
elif [ -n "$RANDOM" ] ; then
PASSWD="grml${RANDOM}"
else
PASSWD=''
eerror "Empty passphrase and neither apg, gpw, pwgen, hexdump nor \$RANDOM available. Skipping."
eend 1
return 1
fi
}
### }}}
# {{{ filesystems (proc, pts, sys) and fixes
mount_proc(){
[ -f /proc/version ] || mount -t proc /proc /proc 2>/dev/null
}
mount_pts(){
grep -q "/dev/pts" /proc/mounts || mount -t devpts /dev/pts /dev/pts 2>/dev/null
}
mount_sys(){
[ -d /sys/devices ] || mount -t sysfs /sys /sys 2>/dev/null
}
# }}}
# {{{ Check if we are running in live mode or from HD
INSTALLED=""
[ -e /etc/grml_cd ] || INSTALLED="yes"
# }}}
# {{{ provide information about virtual environments
VIRTUAL=false # assume physical system by default
KVM=false
VIRTUALBOX=false
VMWARE=false
if vmware-detect &>/dev/null; then
VIRTUAL=true; VMWARE=true; VIRTUAL_ENV='VMware'
fi
if virt-what 2>/dev/null | grep -q 'kvm' || \
[ "$(imvirt 2>/dev/null)" = "KVM" ] ; then
VIRTUAL=true; KVM=true; VIRTUAL_ENV='KVM'
fi
if virt-what 2>/dev/null | grep -q 'virtualbox' || \
[ "$(imvirt 2>/dev/null)" = "VirtualBox" ] ; then
VIRTUAL=true; VIRTUALBOX=true; VIRTUAL_ENV='VirtualBox'
fi
# }}}
# {{{ source lsb-functions , color handling
if checkbootparam 'nocolor'; then
. /etc/grml/lsb-functions
einfo "Disabling colors in bootsequence as requested on commandline." ; eend 0
else
. /etc/grml/lsb-functions
fi
# }}}
# {{{ log
config_log(){
if checkbootparam 'log' || checkbootparam 'debug' ; then
export DEBUG="/tmp/grml.log.`date +%Y%m%d`"
touch $DEBUG
einfo "Bootparameter log found. Log files: ${DEBUG} and /var/log/boot"
eindent
einfo "Starting bootlogd." # known to be *very* unreliable :(
bootlogd -r -c >>$DEBUG 2>&1 ; eend $?
eoutdent
else
DEBUG="/dev/null"
fi
}
# }}}
### {{{ language configuration / localization
config_language(){
einfo "Activating language settings:"
eindent
# people can specify $LANGUAGE and $CONSOLEFONT in a config file
[ -r /etc/grml/autoconfig ] && . /etc/grml/autoconfig
# check for bootoption which overrides config from /etc/grml/autoconfig
BOOT_LANGUAGE="$(getbootparam 'lang' 2>>$DEBUG)"
[ -n "$BOOT_LANGUAGE" ] && LANGUAGE="$BOOT_LANGUAGE"
# set default to 'en' in live-cd mode iff $LANGUAGE is not set yet
if [ -z "$INSTALLED" ] ; then
[ -n "$LANGUAGE" ] || LANGUAGE='en'
fi
if [ -x /usr/sbin/grml-setlang ] ; then
# if bootoption lang is used update /etc/default/locale accordingly
if [ -n "$BOOT_LANGUAGE" ] ; then
/usr/sbin/grml-setlang "$LANGUAGE"
# otherwise default to lang=en
else
/usr/sbin/grml-setlang "en"
fi
fi
if ! $SYSTEMD ; then
# set console font
if [ -z "$CONSOLEFONT" ] ; then
if ! checkbootparam 'nodefaultfont' >>$DEBUG 2>&1 ; then
if [ -r /usr/share/consolefonts/Uni3-Terminus16.psf.gz ] ; then
CONSOLEFONT='Uni3-Terminus16'
else
ewarn "/usr/share/consolefonts/Uni3-Terminus16.psf.gz not available. Please upgrade package console-terminus." ; eend 1
fi
if ! hasfb ; then
CONSOLEFONT='Lat15-Terminus16'
fi
fi
fi
fi # not running systemd
# export it now, so error messages get translated, too
[ -r /etc/default/locale ] && . /etc/default/locale
export LANG LANGUAGE
if $SYSTEMD ; then
local KEYBOARD
KEYBOARD="$(getbootparam 'keyboard' 2>>$DEBUG)"
[ -n "$KEYBOARD" ] || KEYBOARD="$LANGUAGE"
# "symbols/en" doesn't exist, so rewrite to "us"
[[ "$KEYBOARD" == 'en' ]] && KEYBOARD="us"
if [ -r /etc/default/keyboard ] ; then
sed -i "s/^XKBLAYOUT=.*/XKBLAYOUT=\"$KEYBOARD\"/" /etc/default/keyboard
case "$KEYBOARD" in
de|at)
sed -i "s/^XKBVARIANT=.*/XKBVARIANT=\"nodeadkeys\"/" /etc/default/keyboard
;;
esac
fi
service_wrapper console-setup restart >>$DEBUG 2>&1 ; eend $?
else # not running systemd, keeing for backwards compatibility:
# configure keyboard layout, read in already set values first:
[ -r /etc/sysconfig/keyboard ] && . /etc/sysconfig/keyboard
# now allow keyboard override by boot commandline for later use:
KKEYBOARD="$(getbootparam 'keyboard' 2>>$DEBUG)"
[ -n "$KKEYBOARD" ] && KEYTABLE="$KKEYBOARD"
# notce: de/at is a bad choice, so take de-latin1-nodeadkeys instead:
[[ "$KKEYBOARD" == 'de' ]] && KEYTABLE=de-latin1-nodeadkeys
[[ "$KKEYBOARD" == 'at' ]] && KEYTABLE=de-latin1-nodeadkeys
# modify /etc/sysconfig/keyboard only in live-cd mode:
if [ -z "$INSTALLED" ] ; then
local LANGUAGE="$BOOT_LANGUAGE"
. /etc/grml/language-functions
# allow setting xkeyboard explicitly different than console keyboard
KXKEYBOARD="$(getbootparam 'xkeyboard' 2>>$DEBUG)"
if [ -n "$KXKEYBOARD" ]; then
XKEYBOARD="$KXKEYBOARD"
KDEKEYBOARD="$KXKEYBOARD"
elif [ -n "$KKEYBOARD" ]; then
XKEYBOARD="$KKEYBOARD"
KDEKEYBOARD="$KKEYBOARD"
fi
# duplicate of previous code to make sure /etc/grml/language-functions
# does not overwrite our values....
# now allow keyboard override by boot commandline for later use:
KKEYBOARD="$(getbootparam 'keyboard' 2>>$DEBUG)"
[ -n "$KKEYBOARD" ] && KEYTABLE="$KKEYBOARD"
# notce: de/at is a bad choice, so take de-latin1-nodeadkeys instead:
[[ "$KKEYBOARD" == 'de' ]] && KEYTABLE=de-latin1-nodeadkeys
[[ "$KKEYBOARD" == 'at' ]] && KEYTABLE=de-latin1-nodeadkeys
# write keyboard related variables to file for later use
[ -d /etc/sysconfig ] || mkdir /etc/sysconfig
if ! [ -e /etc/sysconfig/keyboard ] ; then
echo "KEYTABLE=\"$KEYTABLE\"" > /etc/sysconfig/keyboard
echo "XKEYBOARD=\"$XKEYBOARD\"" >> /etc/sysconfig/keyboard
echo "KDEKEYBOARD=\"$KDEKEYBOARD\"" >> /etc/sysconfig/keyboard
echo "KDEKEYBOARDS=\"$KDEKEYBOARDS\"" >> /etc/sysconfig/keyboard
fi
fi
[ -r /etc/sysconfig/keyboard ] && . /etc/sysconfig/keyboard
fi
if ! $SYSTEMD ; then
# we have to set up all consoles, therefore loop it over all ttys:
NUM_CONSOLES=$(fgconsole --next-available 2>/dev/null)
if [ -n "$NUM_CONSOLES" ] ; then
NUM_CONSOLES=$(expr ${NUM_CONSOLES} - 1)
[ ${NUM_CONSOLES} -eq 1 ] && NUM_CONSOLES=6
fi
CUR_CONSOLE=$(fgconsole 2>/dev/null)
if [ -x "$(which setfont)" ] ; then
use_setfont=true
elif [ -x "$(which consolechars)" ] ; then
use_consolechars=true
else
eerror "Neither setfont nor consolechars tool present, can not set font."
eend 1
return 1
fi
if [ -n "$CHARMAP" ] ; then
einfo "Setting font to ${CHARMAP}"
RC=0
for vc in $(seq 0 ${NUM_CONSOLES}) ; do
if $use_setfont ; then
setfont -C /dev/tty${vc} $CHARMAP ; RC=$?
elif $use_consolechars ; then
consolechars --tty=/dev/tty${vc} -m ${CHARMAP} ; RC=$?
fi
done
if [ -n "$CUR_CONSOLE" ] ; then
[ "$CUR_CONSOLE" != "serial" ] && chvt $CUR_CONSOLE
fi
eend $RC
fi
if checkbootparam 'noconsolefont' ; then
ewarn "Skipping setting console font as requested on boot commandline." ; eend 0
else
if [ -n "$CONSOLEFONT" ] ; then
einfo "Setting font to ${CONSOLEFONT}"
RC=0
for vc in $(seq 0 ${NUM_CONSOLES}) ; do
if $use_setfont ; then
setfont -C /dev/tty${vc} ${CONSOLEFONT} ; RC=$?
elif $use_consolechars ; then
consolechars --tty=/dev/tty${vc} -f ${CONSOLEFONT} ; RC=$?
fi
done
if [ -n "$CUR_CONSOLE" ] ; then
[ "$CUR_CONSOLE" != "serial" ] && chvt $CUR_CONSOLE
fi
eend $RC
fi
fi
# Set default keyboard before interactive setup
if [ -n "$KEYTABLE" ] ; then
einfo "Running loadkeys for ${WHITE}${KEYTABLE}${NORMAL} in background"
loadkeys -q $KEYTABLE &
eend $?
fi
# activate unicode console if running within utf8 environment
if [ -r /etc/default/locale ] ; then
if grep -q "LANG=.*UTF" /etc/default/locale ; then
einfo "Setting up unicode environment."
unicode_start ; eend $?
fi
fi
fi # not running systemd
eoutdent
}
# }}}
# {{{ Set hostname
config_hostname(){
if ! checkbootparam 'hostname' ; then
return 0
fi
HOSTNAME="$(getbootparam 'hostname' 2>>$DEBUG)"
if [ -z "$HOSTNAME" ] && [ -x /usr/bin/random-hostname ] ; then
einfo "Generating random hostname as no hostname was specified."
HOSTNAME="$(/usr/bin/random-hostname)"
eend $?
fi
einfo "Setting hostname to $HOSTNAME as requested."
grml-hostname $HOSTNAME >>$DEBUG
eend $?
}
# }}}
# fstabuser (needed when running from harddisk with username != grml {{{
config_userfstab(){
# force load of build-in and local config
[ -r /etc/grml/autoconfig ] && . /etc/grml/autoconfig
[ -r /etc/grml/autoconfig ] && . /etc/grml/autoconfig.local
# 1st. try configured fstab user
if [ -n "$CONFIG_FSTAB_USER" ] ; then
fstabuser=$(getent passwd $CONFIG_FSTAB_USER | cut -d: -f1)
fi
# 2nd. use standard user id
[ -n "$fstabuser" ] || fstabuser=$(getent passwd 1000 | cut -d: -f1)
# 3rd. use standard user name
[ -n "$fstabuser" ] || fstabuser=$(getent passwd grml | cut -d: -f1)
# if not yet set fall back to 'root' user, avoid bad /etc/fstab
[ -n "$fstabuser" ] || fstabuser='root'
}
# }}}
# local_user (needed when running with username != grml {{{
config_userlocal() {
# force load of build-in and local config
[ -r /etc/grml/autoconfig ] && . /etc/grml/autoconfig
[ -r /etc/grml/autoconfig ] && . /etc/grml/autoconfig.local
# 1st. try id of primary user
localuser=$(getent passwd 1000 | cut -d: -f1)
# 2nd. use name standard user
[ -n "$localuser" ] || localuser=$(getent passwd grml | cut -d: -f1)
}
# }}}
# {{{ Set clock (Local time is more often used than GMT, so it is default)
config_time(){
# don't touch the files if running from harddisk:
if [ -z "$INSTALLED" ]; then
# The default hardware clock timezone is stated as representing local time.
UTC="--localtime"
if [ -f /etc/default/rcS ] ; then
grep -q "^UTC=" /etc/default/rcS || echo "UTC=no" >> /etc/default/rcS
checkbootparam 'utc' >>$DEBUG 2>&1 && sed -i "s|^UTC=.*$|UTC=yes|" /etc/default/rcS
checkbootparam 'gmt' >>$DEBUG 2>&1 && sed -i "s|^UTC=.*$|UTC=yes|" /etc/default/rcS
checkbootparam 'localtime' >>$DEBUG 2>&1 && sed -i "s|^UTC=.*$|UTC=no|" /etc/default/rcS
grep -q -i "^UTC=yes" /etc/default/rcS && UTC="-u"
# recent initscripts package versions don't ship /etc/default/rcS anymore, instead rely on /etc/adjtime
elif [ -f /etc/adjtime ] ; then
checkbootparam 'utc' >>$DEBUG 2>&1 && sed -i "s/^LOCAL/UTC/" /etc/adjtime
checkbootparam 'gmt' >>$DEBUG 2>&1 && sed -i "s/^LOCAL/UTC/" /etc/adjtime
checkbootparam 'localtime' >>$DEBUG 2>&1 && sed -i "s/^UTC$/LOCAL/" /etc/adjtime
grep -q "^UTC$" /etc/adjtime && UTC="-u"
fi
# hwclock uses the TZ variable
KTZ="$(getbootparam 'tz' 2>>$DEBUG)"
[ -z "$KTZ" ] && [ -r /etc/timezone ] && KTZ=$(cat /etc/timezone)
if [ ! -f "/usr/share/zoneinfo/$KTZ" ] ; then
ewarn "Warning: unknown timezone $KTZ" ; eend 1
KTZ="UTC"
ewarn "Falling back to timezone $KTZ" ; eend 0
fi
if ! [ -r /dev/rtc ] ; then
ewarn "Warning: realtime clock not available, trying to execute hwclock anyway." ; eend 0
fi
ERROR=$(TZ="$KTZ" hwclock $UTC -s 2>&1 | head -1) ; RC=$?
if [ -n "$ERROR" ] ; then
eindent
ERROR=$(TZ="$KTZ" hwclock $UTC -s --directisa 2>&1 | head -1)
if [ -n "$ERROR" ] ; then
eerror "Problem running hwclock: $ERROR" ; eend 1
fi
eoutdent
fi
fi
}
# }}}
# {{{ print kernel info
config_kernel(){
if $VIRTUAL && [ -n "$VIRTUAL_ENV" ] ; then
einfo "Running Linux Kernel $KERNEL inside $VIRTUAL_ENV" ; eend 0
else
einfo "Running Linux Kernel $KERNEL" ; eend 0
fi
if [ -r /proc/cpuinfo ] ; then
if egrep -q '^flags.*(vmx|svm)' /proc/cpuinfo ; then
eindent
einfo 'CPU(s) featuring virtualization technology detected' ; eend 0
eoutdent
fi
fi
if [ -d /proc/xen ] ; then
eindent
einfo 'Running kernel featuring support for Xen detected' ; eend 0
eoutdent
fi
}
# }}}
# {{{ secure boot
config_secureboot(){
# systemd does this for us, but if we are not running under systemd then mokutil
# doesn't work as needed as it relies on /sys/firmware/efi/efivars (while
# /sys/firmware/efi/vars would exist)
if ! $SYSTEMD ; then
if modprobe efivars &>/dev/null ; then
mount -t efivarfs efivarfs /sys/firmware/efi/efivars
fi
fi
if [ -x /usr/bin/mokutil ] ; then
local secstate=$(mokutil --sb-state 2>/dev/null) # "SecureBoot enabled"
if [ -n "$secstate" ] ; then
einfo "SecureBoot is enabled" ; eend 0
else
einfo "SecureBoot not detected" ; eend 0
fi
else
if modprobe efivars &>/dev/null ; then
if od -An -t u1 /sys/firmware/efi/vars/SecureBoot-*/data 2>/dev/null | grep -q 1 ; then
einfo "SecureBoot is enabled" ; eend 0
else
einfo "SecureBoot not detected" ; eend 0
fi
fi
fi
}
# }}}
# {{{ timezone
config_timezone(){
# don't touch the files if running from harddisk:
if [ -z "$INSTALLED" ]; then
KTZ="$(getbootparam 'tz' 2>>$DEBUG)"
if [ -n "$KTZ" ] ; then
if [ ! -f "/usr/share/zoneinfo/$KTZ" ]
then
ewarn "Warning: unknown timezone $KTZ"; eend 0
else
einfo "Setting timezone."
# update debconf
area=$(echo $KTZ | cut -d '/' -f1)
zone=$(echo $KTZ | cut -d '/' -f2)
echo "tzdata tzdata/Areas select $area" | debconf-set-selections
echo "tzdata tzdata/Zones/$area select $zone" | debconf-set-selections
# update files
echo $KTZ > /etc/timezone
rm -f /etc/localtime
cp "/usr/share/zoneinfo/$KTZ" /etc/localtime ; eend $?
fi
fi
fi
}
# }}}
# activate serial console {{{
config_console(){
if checkbootparam 'console'; then
# this hack is no longer necessary with systemd
if $SYSTEMD ; then
return
fi
local line
local ws
ws=' '
einfo "Bootoption for serial console detected:"
line="$CMDLINE x "
this=""
line="${line#*[$ws]}"
local telinitq=""
while [ -n "$line" ]; do
case "$this" in
console=*)
local serial="$this"
local device="${this%%,*}"
local device="${device##*=}"
if echo $serial | grep -q ttyS ; then
local option="${serial##*,}"
# default (works for kvm & CO):
local speed="115200,57600,38400,19200,9600,4800,2400,1200";
# ... unless overriden by command line:
case "$option" in
115200*) speed=115200 ;;
57600*) speed=57600 ;;
38400*) speed=38400 ;;
19200*) speed=19200 ;;
9600*) speed=9600 ;;
4800*) speed=4800 ;;
2400*) speed=2400 ;;
1200*) speed=1200 ;;
esac
eindent
einfo "Activating console login on device ${device} with speed ${speed}."
local number="${device#ttyS}"
sed -i "/^T$number:/d;/^#grmlserial#/iT$number:23:respawn:/bin/bash -c \"/sbin/getty -L $device -l /usr/share/grml-scripts/run-welcome $speed vt100 || sleep 30\"" /etc/inittab
eend $?
telinitq="1"
eoutdent
fi
;;
esac
this="${line%%[$ws]*}"
line="${line#*[$ws]}"
done
if [ -n "$telinitq" ]; then
/sbin/telinit q
fi
eend $?
fi
}
# }}}
# {{{ CD Checker
config_testcd(){
if checkbootparam 'testcd' ; then
einfo "Checking CD data integrity as requested by '${WHITE}testcd${NORMAL}' boot option."
eindent
local ERROR=true
local FOUND_FILE=false
local logfile='/tmp/md5sum.log'
rm -f "$logfile"
for md5 in $(find "${LIVECD_PATH}" -name md5sums) ; do
einfo "Checking files against $md5, this may take a while..."
FOUND_FILE=true
OLD_PWD=$(pwd)
cd $(dirname "$md5")
md5sum -c $(basename "$md5") |& tee -a "${logfile}"
if [ $pipestatus[1] -eq 0 ] ; then
ERROR=false
fi
cd "${OLD_PWD}"
done
if ! $FOUND_FILE ; then
eerror 'Error: Could not find md5sum file' ; eend 1
return
fi
if ! $ERROR ; then
einfo "Everything looks OK" ; eend 0
else
eerror 'Checksum failed for theses files:' ; eend 1
egrep -v '(^md5sum:|OK$)' "${logfile}"
eerror 'Data on the medium is possibly incomplete/damaged or RAM of your system is broken.' ; eend 1
einfon "Hit return to continue, or press the power button to shut down system."
read a
fi
eoutdent
fi
}
# }}}
# {{{ blacklist specific module [ used in /etc/init.d/udev ]
config_blacklist(){
if checkbootparam 'blacklist' ; then
if [ -z "$INSTALLED" ]; then
einfo "Bootoption blacklist found."
BLACK="$(getbootparam 'blacklist' 2>>$DEBUG)"
BLACKLIST_FILE='/etc/modprobe.d/grml.conf'
if [ -n "$BLACK" ] ; then
for module in $(echo ${BLACK//,/ }) ; do
einfo "Blacklisting module ${module} via ${BLACKLIST_FILE}."
echo "# begin entry generated by config_blacklist of grml-autoconfig" >> "$BLACKLIST_FILE"
echo "blacklist $module" >> "$BLACKLIST_FILE"
echo "alias $module off" >> "$BLACKLIST_FILE"
echo "# end entry generated by config_blacklist of grml-autoconfig" >> "$BLACKLIST_FILE" ; eend $?
done
else
eerror "No given module for blacklist found. Blacklisting will not work therefore."
fi
else
ewarn "Backlisting via bootoption is not intended for use on harddisk installations." ; eend 1
eindent
einfo "Please blacklist the module(s) manually using the 'blacklist' script."
eoutdent
fi
fi
}
# }}}
# {{{ ACPI
config_acpi(){
if $SYSTEMD ; then
echo "systemd detected, no acpi(d) stuff needed." >>"$DEBUG"
return
fi
if checkbootparam 'noacpi'; then
ewarn "ACPI: Not loading modules as requested by boot option \"noacpi\"." ; eend 0
elif checkbootparam 'nogrmlacpi' ; then
ewarn "ACPI: Not loading modules as requested by boot option \"nogrmlacpi\"." ; eend 0
elif [ ! -d /proc/acpi ] ; then
ewarn "ACPI: Kernel support not present." ; eend 0
else
einfo "ACPI: Loading modules (disable with boot option noacpi / nogrmlacpi): "
eindent
found=""
for a in /lib/modules/$KERNEL/kernel/drivers/acpi/*; do
basename="${a##*/}"
basename="${basename%%.*}"
case "$basename" in *_acpi)
egrep -qi "${basename%%_acpi}" /proc/acpi/dsdt 2>>$DEBUG || continue ;;
esac
modprobe $basename >>$DEBUG 2>&1 && found="yes"
local BASE="$BASE $basename"
done
if [ -n "$found" ] ; then
einfo "$BASE" ; eend 0
else
ewarn "(none)" ; eend 1
fi
if ! pgrep acpid >/dev/null ; then
einfo "Starting acpi daemon."
service_wrapper acpid.socket start >>$DEBUG 2>&1 ; eend $?
service_wrapper acpid start >>$DEBUG 2>&1 ; eend $?
else
ewarn "acpi daemon already running."
eend 0
fi
eoutdent
fi
}
# }}}
# {{{ Start brltty
config_brltty() {
if checkbootparam 'brltty' ; then
einfo "Starting brltty service as requested on boot commandline."
service_wrapper brltty start ; eend $?
fi
}
# }}}
# {{{ Start creating /etc/fstab with HD partitions and USB SCSI devices now
config_fstab(){
NOSWAP="yes" # we do not use swap by default!
if checkbootparam 'swap' || checkbootparam 'anyswap' ; then
NOSWAP=''
checkbootparam 'anyswap' && export ANYSWAP='yes' || export ANYSWAP=""
fi
# Scan for swap, config, homedir - but only in live-mode
if [ -z "$INSTALLED" ] ; then
[ -z "$NOSWAP" ] && einfo "Searching for swap partition(s) as requested."
GRML_IMG=""
GRML_SWP=""
HOMEDIR="$(getbootparam 'home')"
if [ -n "$partitions" ]; then
while read p m f relax; do
case "$p" in *fd0*|*proc*|*sys*|*\#*) continue;; esac
partoptions="users,exec"
fnew=""
# it's a swap partition?
case "$f" in swap)
eindent
if [ -n "$NOSWAP" ]; then
ewarn "Ignoring swap partition ${WHITE}$p${NORMAL}. (Force usage via boot option 'swap', or execute grml-swapon)"
eend 0
else
case "$(dd if=$p bs=1 count=6 skip=4086 2>/dev/null)" in
S1SUSP|S2SUSP|pmdisk|[zZ]*)
if [ -n "$ANYSWAP" ] ; then
einfo "Using swap partition ${WHITE}${p}${NORMAL} [bootoption anyswap found]."
swapon $p 2>>$DEBUG ; eend $?
else
ewarn "Suspend signature on ${WHITE}${p}${NORMAL} found, not using as swap. (Force usage via boot option: anyswap)"
fi
;;
*)
if [[ "$p" == LABEL* ]] ; then
p=$(blkid -t $p | awk -F: '{print $1}')
fi
if grep -q $p /proc/swaps ; then
ewarn "Not using swap partition ${WHITE}${p}${NORMAL} as it is already in use." ; eend 0
else
if [ -b "$p" ] ; then
einfo "Using swap partition ${WHITE}${p}${NORMAL}."
swapon $p 2>>$DEBUG ; eend $?
else
ewarn "$p is not a valid block device - not using it therefore." ; eend 0
fi
fi
;;
esac # dd-check
fi # -n "$NOSWAP
eoutdent
continue
;;
esac # it's a swap partition?
# mount read-only
MOUNTOPTS="ro"
case "$f" in
vfat|msdos|ntfs) MOUNTOPTS="$MOUNTOPTS,uid=${fstabuser},gid=${fstabuser}" ;;
ext2|ext3|reiserfs|jfs|reiser4|xfs) MOUNTOPTS="$MOUNTOPTS,noatime" ;;
*) continue ;;
# *) NONEFOUND='1'; continue ;;
esac
# use a swapfile
if [ -z "$NOSWAP" ] ; then
mount -o "$MOUNTOPTS" -t $f $p $m 2>>$DEBUG && MOUNTED=1 || continue
# Activate swapfile, if exists
SWAPFILE="$(/bin/ls -1d $m/[Gg][Rr][Mm][Ll].[Ss][Ww][Pp] 2>/dev/null)"
fi
if [ -z "$NOSWAP" -a -n "$SWAPFILE" -a -f "$SWAPFILE" ]; then
mount -o remount,rw $m && MOUNTED=1
if swapon "$SWAPFILE" 2>>$DEBUG ; then
eindent
einfo "Using GRML swapfile ${WHITE}${SWAPFILE}${NORMAL}."
eoutdent
fnew="$SWAPFILE swap swap defaults 0 0"
grep -q "$fnew" "/etc/fstab" || echo "$fnew" >> /etc/fstab
GRML_SWP="$GRML_SWP $SWAPFILE"
eend 0
fi
mount -o remount,ro $m 2>>$DEBUG && MOUNTED=1
fi
# use a image as home
IMAGE="$(/bin/ls -1d $m/[Gg][Rr][Mm][Ll].[Ii][Mm][Gg] 2>/dev/null)"
if [ -z "$GRML_IMG" -a -n "$IMAGE" -a -f "$IMAGE" ]; then
if [ -n "$HOMEDIR" ]; then
if [ "$HOMEDIR" != "scan" -a "$HOMEDIR" != "$IMAGE" -a "$HOMEDIR" != "${IMAGE%/*.*}" ]; then
continue
fi
fi
if type -a grml-image >/dev/null 2>&1 && grml-image "$IMAGE" </dev/console >/dev/console 2>&1; then
GRML_IMG="$IMAGE"
mount -o remount,ro $m 2>>$DEBUG && MOUNTED=1
fi
fi
eend 0
# Umount, if not in use
[ -n "$MOUNTED" ] && umount -r $m 2>/dev/null
done <<EOT
$(cat /etc/fstab)
EOT
fi # -n $partitions
fi # -z $INSTALLED
}
# }}}
# {{{ CPU-detection
config_cpu(){
if checkbootparam 'nocpu'; then
ewarn "Skipping CPU detection as requested on boot commandline." ; eend 0
return 0
fi
if [[ $(grep -c processor /proc/cpuinfo) -gt 1 ]] ; then
einfo "Found CPU:"
CPU=$(awk -F: '/^processor/{printf " Processor"$2" is"};/^model name/{printf $2};/^vendor_id/{printf vendor};/^cpu MHz/{printf " %dMHz",int($2)};/^cache size/{printf ","$2" Cache"};/^$/{print ""}' /proc/cpuinfo 2>>$DEBUG)
echo $CPU | sed 's/ \{1,\}/ /g'
eend 0
else
einfo "Found CPU: `awk -F: '/^processor/{printf " Processor"$2" is"};/^model name/{printf $2};/^vendor_id/{printf vendor};/^cpu MHz/{printf " %dMHz",int($2)};/^cache size/{printf ","$2" Cache"};/^$/{print ""}' /proc/cpuinfo 2>>$DEBUG` " ; eend 0
fi
}
# }}}
# {{{ autostart of ssh
config_ssh(){
if checkbootparam 'ssh' ; then
local PASSWD
PASSWD="$(getbootparam 'ssh' 2>>$DEBUG)"
config_userlocal
einfo "Bootoption ssh found, trying to set password for root and user $localuser"
[ -z "$localuser" ] && eend 1
eindent
if [ -z "$PASSWD" ] ; then
set_passwd && ewarn "No given password for found. Using random password: $PASSWD" && eend 0
fi
eoutdent
if [ -n "$PASSWD" ] ; then
chpass_options=""
if chpasswd --help 2>&1 | grep -q -- '-m,' ; then
chpass_options="-m"
fi
echo "$localuser:$PASSWD" | chpasswd $chpass_options
echo "root:$PASSWD" | chpasswd $chpass_options
eindent
ewarn "Warning: please change the password for root and user $localuser as soon as possible!"
eoutdent
fi
einfo "Starting secure shell server in background for root and user $localuser"
service_wrapper haveged start >>$DEBUG 2>>$DEBUG
service_wrapper rmnologin start >>$DEBUG 2>>$DEBUG
service_wrapper ssh start background >>$DEBUG 2>>$DEBUG
eend $?
fi
}
# }}}
# {{{ display hostkeys of SSH server
config_display_ssh_fingerprints() {
if ! ls /etc/ssh/ssh_host_\*_key >/dev/null 2>&1 ; then
return 0 # no SSH host keys present
fi
einfo "SSH key fingerprints:"
for file in /etc/ssh/ssh_host_*_key ; do
einfon
ssh-keygen -l -f $file
done | column -t
eend $?
}
# }}}
# {{{ autostart of x11vnc
config_vnc(){
if checkbootparam 'vnc' ; then
config_userlocal
VNC_PASSWD=''
VNC_PASSWD="$(getbootparam 'vnc' 2>>$DEBUG)"
einfo "Bootoption vnc found, trying to set password for user $localuser."
eindent
if [ -z "$VNC_PASSWD" ] ; then
if [ -x /usr/bin/apg ] ; then
VNC_PASSWD="$(apg -M NL -a 0 -m 8 -x 12 -n 1)"
elif [ -x /usr/bin/gpw ] ; then
VNC_PASSWD="$(gpw 1)"
elif [ -x /usr/bin/pwgen ] ; then
VNC_PASSWD="$(pwgen -1 8)"
elif [ -x /usr/bin/hexdump ] ; then
VNC_PASSWD="$(dd if=/dev/urandom bs=14 count=1 2>/dev/null | hexdump | awk '{print $3 $4}')"
elif [ -n "$RANDOM" ] ; then
VNC_PASSWD="${localuser}${RANDOM}"
else
VNC_PASSWD=''
eerror "Empty passphrase and neither pwgen nor hexdump nor \$RANDOM found. Skipping."
eend 1
fi
if [ -n "$VNC_PASSWD" ] ; then