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#!/bin/sh
REQUIRED_MB=250 # minimum megabytes available to offer install
MENUFIFO=/menu.fifo
DEBUG=y
LOGBASE=/var/log
debug_log()
{
if [ -n "$DEBUG" ]; then
if [ -n "$1" ]; then
DEBUG_LOG=$LOGBASE/"$1".$$.log
else
DEBUG_LOG=$LOGBASE/$(basename $0).$$.log
fi
mkdir -p $LOGBASE
exec >>$DEBUG_LOG 2>&1
set -x
fi
}
addmenu()
{
cat <<END >>$MENUFIFO # mind the tabs
setItem "$1" "dummy" "$2" "$3"
END
}
menutitle()
{
printf 'setTitle "%s"\n' "$1" >>$MENUFIFO
printf 'setWelcomeText "%s"\n' "$2" >>$MENUFIFO
}
bootmenu()
{
local do_trigger="$1" no_panic="$2"
/bin/openvt -f -c 7 -- dynmenu "$MENUFIFO" &&
chvt 7 &&
menutitle 'Samizdat\n\nAs the Internet develops there are\ntransitions in the management arrangements.\nThe time has come to take\na small step in one of those transitions.' 'Choose an installation target.'
# menutitle 'Samizdat\nfreedom from surveillance\nno trusted authorities' 'Choose an installation target.'
addmenu "ramdisk" "[ Boot to RAM without installing anything ]" "menu-select boot-ram"
if [ $? != 0 -a ! "$no_panic" ]; then
panic "error loading boot menu! the system won't be usable :("
fi
if [ "$do_trigger" ]; then
udevadm trigger --subsystem-match=block --action=add
fi
}
find_squashfs_root()
{
# TODO: "make" puts the correct location in $iso_squashfs_dir. Get
# information into this function!
bootwait samizdat-cdrom
for dir in /cdrom/live /cdrom/liveos /cdrom/aptosid /cdrom/*
do
[ -d "$dir" ] || continue;
if [ -f "$dir"/filesystem.module ]; then
while read fs; do
[ -f "$dir"/"$fs" ] && echo "$dir" "$fs"
done < "$dir"/filesystem.module
return
fi
done
for fs in /cdrom/live/filesystem.squashfs /cdrom/live/grml-small.squashfs /cdrom/liveos/squashfs.img /cdrom/aptosid/aptosid.* /cdrom/*/*.squashfs
do
if [ -f "$fs" ]; then
echo "${fs%/*}" "${fs##*/}"
break
fi
done
}
xtrace()
{
case "$-" in
*x*) "$@" ;;
*) set -x; "$@"; set +x ;;
esac
}
sleepcmd() {
local t=$1
shift
echo "about to run '$*' (in $t)"
sleep $t
"$@"
}
sleep_forever_verbose() {
sleep 4294967295 &
local sleep=$!
warn "sleeping until you kill $sleep..."
wait $sleep
}
warn() { [ -z "$warnings" ] || echo "$@" >&2; }
panic()
{
set +x
exec </dev/tty1 >/dev/tty1 2>&1
reset
echo "[p$$] initramfs /init: fatal error: $@"
echo "[p$$] will now exec emergency shell"
export PS1="[p$$ \\w]# "
chvt 1
exec /bin/sh -i
}
bootwait()
{
mkdir -p /bootwait
local i=$#; while [ $i -gt 0 ]; do
i=$((i-1))
local f="$1"; shift; set -- "$@" "/bootwait/$f"
done
wait_for_files "$@"
}
bootdone()
{
mkdir -p /bootwait
local i=$#; while [ $i -gt 0 ]; do
i=$((i-1))
local f="$1"; shift; set -- "$@" "/bootwait/$f"
done
touch "$@"
}
my_openvt()
{
/bin/openvt -c "$@"
}
# This runs before way before NTP and on a LiveCD we have no
# reason to trust the system clock.
gpg2_nobatch() { GPG_TTY=$(tty) command gpg2 --ignore-time-conflict --ignore-valid-from "$@"; }
gpg2() { gpg2_nobatch --batch "$@"; }
xcp() { if [ -f "$1" -a ! -f "$2" ]; then cp "$1" "$2"; fi; }
mountsquashes()
{
local name dirname basename
while read dirname basename && [ -d "$dirname" -a -f "$dirname/$basename" ]; do
name=${basename%.squashfs}
mkdir -p "/squashes/$name" || return 1
xcp "$dirname"/filesystem.module /squashes/filesystem.module || return 1
mountpoint -q "/squashes/$name" ||
mount -o ro,loop "$dirname/$basename" "/squashes/$name" || return 1
done
}
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