#!/bin/sh getcmdline() { while read -r _line || [ -n "$_line" ]; do printf "%s" "$_line" done < /proc/cmdline } _dogetarg() { local _o _val _doecho unset _val unset _o unset _doecho CMDLINE=$(getcmdline) for _o in $CMDLINE; do if [ "${_o%%=*}" = "${1%%=*}" ]; then if [ -n "${1#*=}" -a "${1#*=*}" != "${1}" ]; then # if $1 has a "=", we want the exact match if [ "$_o" = "$1" ]; then _val="1" unset _doecho fi continue fi if [ "${_o#*=}" = "$_o" ]; then # if cmdline argument has no "=", we assume "=1" _val="1" unset _doecho continue fi _val="${_o#*=}" _doecho=1 fi done if [ -n "$_val" ]; then [ "x$_doecho" != "x" ] && echo "$_val" return 0 fi return 1 } getarg() { local _deprecated _newoption while [ $# -gt 0 ]; do case $1 in -d) _deprecated=1 shift ;; -y) if _dogetarg $2 > /dev/null; then if [ "$_deprecated" = "1" ]; then [ -n "$_newoption" ] && warn "Kernel command line option '$2' is deprecated, use '$_newoption' instead." || warn "Option '$2' is deprecated." fi echo 1 return 0 fi _deprecated=0 shift 2 ;; -n) if _dogetarg $2 > /dev/null; then echo 0 if [ "$_deprecated" = "1" ]; then [ -n "$_newoption" ] && warn "Kernel command line option '$2' is deprecated, use '$_newoption=0' instead." || warn "Option '$2' is deprecated." fi return 1 fi _deprecated=0 shift 2 ;; *) if [ -z "$_newoption" ]; then _newoption="$1" fi if _dogetarg $1; then if [ "$_deprecated" = "1" ]; then [ -n "$_newoption" ] && warn "Kernel command line option '$1' is deprecated, use '$_newoption' instead." || warn "Option '$1' is deprecated." fi return 0 fi _deprecated=0 shift ;; esac done return 1 } getargbool() { local _b unset _b local _default _default="$1" shift _b=$(getarg "$@") [ $? -ne 0 -a -z "$_b" ] && _b="$_default" if [ -n "$_b" ]; then [ $_b = "0" ] && return 1 [ $_b = "no" ] && return 1 [ $_b = "off" ] && return 1 fi return 0 } export PATH=/sbin:/bin:/usr/sbin:/usr/bin exec > /dev/console 2>&1 strstr() { [ "${1##*"$2"*}" != "$1" ]; } CMDLINE=$(while read line || [ -n "$line" ]; do echo $line; done < /proc/cmdline) export TERM=linux export PS1='initramfs-test:\w\$ ' stty sane echo "made it to the rootfs! Powering down." while read dev fs fstype opts rest || [ -n "$dev" ]; do [ "$fstype" != "ext3" ] && continue echo "iscsi-OK $dev $fstype $opts" | dd oflag=direct,dsync of=/dev/sda break done < /proc/mounts #sh -i if getargbool 0 rd.shell; then strstr "$(setsid --help)" "control" && CTTY="-c" setsid $CTTY sh -i fi poweroff -f