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|
#!/bin/sh
#
# Petitboot utility script for running a petitboot UI program
# on a console tty.
#
ui=petitboot-nc
shell=sh
getty=/sbin/getty
use_getty=0
detach=0
pb_config=pb-config
usage() {
cat >&2 <<EOF
pb-console [OPTIONS] -- [ARGS]
OPTIONS
-d, --detach
Start in a detached (background) state.
-g, --getty[=PATH]
Start a getty (specified by PATH, otherwise $getty),
passing additional ARGS to the getty process
-s, --shell=PATH
Use PATH as the exit-to-shell shell
-u, --ui=PATH
Use PATH as the petitboot UI
-h, --help
Print a help message.
EOF
exit 1
}
opts=$(getopt --options 'hdg::s:u:' \
--long 'help,detach,getty::,shell:,ui:' \
-- "$@")
[ $? = 0 ] || exit 1
eval set -- "$opts"
while :
do
case "$1" in
-d | --detach)
detach=1
shift
;;
-g | --getty)
use_getty=1
getty_arg="$2"
shift 2
;;
-s | --shell)
shell="$2"
shift 2
;;
-u | --ui)
ui="$2"
shift 2
;;
--help | -h)
usage
;;
--)
shift
break
;;
*)
echo "getopt error"
exit 1
esac
done
if [ "$use_getty" = 1 ]
then
if [ -n "$getty_arg" ]
then
getty="$getty_arg"
fi
login_arg="-l$0"
for ttyarg in "$@"
do
# If the getty args include autologin don't override with -l
# and leave calling petitboot-nc to the user's init
if [ "$ttyarg" == "-a" ]
then
login_arg=""
fi
done
if [ "$detach" = 1 ]
then
setsid -c $getty $login_arg "$@" &
exit
else
exec $getty $login_arg "$@"
fi
fi
for f in /etc/environment /etc/locale
do
if [ -e "$f" ]
then
export $(cat "$f")
fi
done
# we force local terminals to use the linux termcap definition
case "$(tty)" in
/dev/tty[0-9]*)
export TERM=linux
;;
esac
# we may have been run from udev - ensure we have a sensible PATH
if [ -z "$PATH" ]
then
PATH=/usr/bin:/usr/sbin:/bin:/sbin
fi
PATH=/var/lib/pb-plugins/bin:$PATH
export PATH
verbose_opt=
if $pb_config debug | grep -q enabled
then
verbose_opt=--verbose
fi
# kernel messages may write over the ncurses ui - change log level to only
# show particularly important messages
dmesg -n 1
trap '' SIGINT
while :
do
$ui $verbose_opt
reset
echo "Exiting petitboot. Type 'exit' to return."
echo "You may run 'pb-sos' to gather diagnostic data"
$shell
done
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