#! /bin/sh
set -e

. /usr/share/debconf/confmodule

log () {
    logger -t kboot-installer "$@"
}

error () {
    log "error: $@"
}

info () {
    log "info: $@"
}

die () {
    template="$1"
    shift

    error "$@"
    db_input critical "$template" || [ $? -eq 30 ]
    db_go || true
    exit 1
}

findfs () {
    mount | grep "on /target${1%/} " | cut -d' ' -f1
}

rootfs_devfs="$(findfs /)"
[ "$rootfs_devfs" ] || die kboot-installer/noroot 'No root partition found'

bootfs_devfs="$(findfs /boot)"
[ "$bootfs_devfs" ] || bootfs_devfs="$rootfs_devfs"

if [ -b "$rootfs_devfs" ]; then
    rootfs="$(PATH="/lib/udev:$PATH" vol_id -u "$rootfs_devfs" || true)"
fi
if [ -b "$bootfs_devfs" ]; then
    bootfs="$(PATH="/lib/udev:$PATH" vol_id -u "$bootfs_devfs" || true)"
fi

if [ "$rootfs" ]; then
    rootfs="UUID=$rootfs"
else
    rootfs="$(mapdevfs "$rootfs_devfs")"
fi
if [ "$bootfs" ]; then
    bootfs="UUID=$bootfs"
else
    bootfs="$(mapdevfs "$bootfs_devfs")"
fi

# Work out user parameters.
user_params=quiet
# usplash disabled for 8.10 due to https://launchpad.net/bugs/285218.
#if db_get debian-installer/framebuffer && [ "$RET" = true ]; then
#    user_params="$user_params splash"
#fi
user_params="$(echo $user_params $(user-params))" || true

if [ -e /target/boot/vmlinux ]; then
    kernel=/boot/vmlinux
else
    kernel=/vmlinux
fi

if [ -e /target/boot/initrd.img ]; then
    initrd=/boot/initrd.img
else
    initrd=/initrd.img
fi

if [ "$rootfs" = "$bootfs" ]; then
    etc='/target/etc'
else
    kernel="${kernel#/boot}"
    initrd="${initrd#/boot}"
    etc='/target/boot/etc'
fi

mkdir -p "$etc"

cat >"$etc/kboot.msg" <<EOF
Ubuntu PS3 KBoot Loader.

- Hit enter to boot the default system. 
- Type 'game' and press the enter key to get back to the Sony XMB operating system.
If this is for some reason not possible, carrying out a hard-reset (see PS3 instruction manual) will return to the XMB on next run.
- You can also use the shell by typing 'sh'. Exiting the shell returns to the kboot prompt.

EOF

cat >"$etc/kboot.conf" <<EOF
message=/etc/kboot.msg
default=linux
timeout=100
linux='$kernel initrd=$initrd root=$rootfs $user_params'
old='$kernel.old initrd=$initrd.old root=$rootfs $user_params'
EOF

exit 0