#!/bin/bash
set -e

merge_debconf_into_conf()
{
local tmpfile; tmpfile="$1"
local setting; setting="$2"
local template; template="$3"

db_get "$template"
local value; value="$(echo "$RET" | sed -e 's,[$`"\],\\&,g')"
if grep -q "^${setting}=" "$tmpfile"; then
value="$(echo "$value" | sed -e 's,[\@],\\&,g')"
sed -i -re "s@^(${setting}=).*@\1\"${value}\"@" "$tmpfile"
else
echo >> "$tmpfile"
echo "${setting}=\"${value}\"" >> "$tmpfile"
fi
}

get_wubi_device()
{
if [ ! -x /usr/share/lupin-support/grub-mkimage ] || \
! /usr/share/lupin-support/grub-mkimage --test; then
return 1
fi

local bootdev="$(grub-probe --target=device /boot)" || true
local loop_file=
case $bootdev in
/dev/loop/*|/dev/loop[0-9])
loop_file="$(losetup "$bootdev" | sed -e "s/^[^(]*(\([^)]\+\)).*/\1/")"
# If it's loop-mounted from another device, it isn't Wubi.
case $loop_file in
/dev/*) return 1 ;;
esac
;;
*) return 1 ;;
esac

echo "$bootdev"
}

# This only works on a Linux system with udev running. This is probably the
# vast majority of systems where we need any of this, though, and we fall
# back reasonably gracefully if we don't have it.
cached_available_ids=
available_ids()
{
local id path

if [ "$cached_available_ids" ]; then
echo "$cached_available_ids"
return
fi

[ -d /dev/disk/by-id ] || return
cached_available_ids="$(
for path in /dev/disk/by-id/*; do
[ -e "$path" ] || continue
printf '%s %s\n' "$path" "$(readlink -f "$path")"
done | sort -k2 -s -u | cut -d' ' -f1
)"
echo "$cached_available_ids"
}

# Returns non-zero and no output if no mapping can be found.
device_to_id()
{
local id
for id in $(available_ids); do
if [ "$(readlink -f "$id")" = "$(readlink -f "$1")" ]; then
echo "$id"
return 0
fi
done
# Fall back to the plain device name if there's no by-id link for it.
if [ -e "$1" ]; then
echo "$1"
return 0
fi
return 1
}

devices_to_ids()
{
local device id ids
ids=
for device; do
id="$(device_to_id "$device" || true)"
if [ "$id" ]; then
ids="${ids:+$ids, }$id"
fi
done
echo "$ids"
}

all_disks()
{
local id
for id in $(available_ids); do
case $id in
*-part*) ;;
*) echo "$id" ;;
esac
done
}

all_partitions()
{
local id ids
ids=
for id in $(available_ids); do
if [ "$id" != "$1" ] && [ "${id%-part*}" = "$1" ]; then
ids="${ids:+$ids }$id"
fi
done
echo "$ids"
}

# In order to determine whether we accidentally ran grub-install without
# upgrade-from-grub-legacy on versions older than 1.98+20100617-1, we need
# to be able to scan a disk to determine whether GRUB 2 was installed in its
# boot sector. This is specific to i386-pc (but that's the only platform
# where we need it).
scan_grub2()
{
if ! dd if="$1" bs=512 count=1 2>/dev/null | grep -aq GRUB; then
# No version of GRUB is installed.
return 1
fi

# The GRUB boot sector always starts with a JMP instruction.
initial_jmp="$(dd if="$1" bs=2 count=1 2>/dev/null | od -Ax -tx1 | \
head -n1 | cut -d' ' -f2,3)"
[ "$initial_jmp" ] || return 1
initial_jmp_opcode="${initial_jmp%% *}"
[ "$initial_jmp_opcode" = eb ] || return 1
initial_jmp_operand="${initial_jmp#* }"
case $initial_jmp_operand in
47|4b|4c|63)
# I believe this covers all versions of GRUB 2 up to the package
# version where we gained a more explicit mechanism. GRUB Legacy
# always had 48 here.
return 0
;;
esac

return 1
}

# for Linux
sysfs_size()
{
local num_sectors sector_size size
# Try to find out the size without relying on a partitioning tool being
# installed. This isn't too hard on Linux 2.6 with sysfs, but we have to
# try a couple of variants on detection of the sector size.
if [ -e "$1/size" ]; then
num_sectors="$(cat "$1/size")"
sector_size=512
if [ -e "$1/queue/logical_block_size" ]; then
sector_size="$(cat "$1/queue/logical_block_size")"
elif [ -e "$1/queue/hw_sector_size" ]; then
sector_size="$(cat "$1/queue/hw_sector_size")"
fi
size="$(expr "$num_sectors" \* "$sector_size" / 1000 / 1000)"
fi
[ "$size" ] || size='???'
echo "$size"
}

# for kFreeBSD
camcontrol_size()
{
local num_sectors sector_size size=

if num_sectors="$(camcontrol readcap "$1" -q -s -N)"; then
sector_size="$(camcontrol readcap "$1" -q -b)"
size="$(expr "$num_sectors" \* "$sector_size" / 1000 / 1000)"
fi

[ "$size" ] || size='???'
echo "$size"
}

# Returns value in $RET, like a debconf command.
describe_disk()
{
local disk id base size
disk="$1"
id="$2"

model=
case $(uname -s) in
Linux)
if which udevadm >/dev/null 2>&1; then
size="$(sysfs_size "/sys$(udevadm info -n "$disk" -q path)")"
else
base="${disk#/dev/}"
base="$(printf %s "$base" | sed 's,/,!,g')"
size="$(sysfs_size "/sys/block/$base")"
fi

if which udevadm >/dev/null 2>&1; then
model="$(udevadm info -n "$disk" -q property | sed -n 's/^ID_MODEL=//p')"
if [ -z "$model" ]; then
model="$(udevadm info -n "$disk" -q property | sed -n 's/^DM_NAME=//p')"
if [ -z "$model" ]; then
model="$(udevadm info -n "$disk" -q property | sed -n 's/^MD_NAME=//p')"
if [ -z "$model" ] && which dmsetup >/dev/null 2>&1; then
model="$(dmsetup info -c --noheadings -o name "$disk" 2>/dev/null || true)"
fi
fi
fi
fi
;;
GNU/kFreeBSD)
disk_basename=$(basename "$disk")
size="$(camcontrol_size "$disk_basename")"
model="$(camcontrol inquiry "$disk_basename" | sed -ne "s/^pass0: <\([^>]*\)>.*/\1/p")"
;;
esac

[ "$model" ] || model='???'

db_subst grub-pc/disk_description DEVICE "$disk"
db_subst grub-pc/disk_description SIZE "$size"
db_subst grub-pc/disk_description MODEL "$model"
db_metaget grub-pc/disk_description description
}

# Returns value in $RET, like a debconf command.
describe_partition()
{
local disk part id path diskbase partbase size
disk="$1"
part="$2"
id="$3"
path="$4"

if which udevadm >/dev/null 2>&1; then
size="$(sysfs_size "/sys$(udevadm info -n "$part" -q path)")"
else
diskbase="${disk#/dev/}"
diskbase="$(printf %s "$diskbase" | sed 's,/,!,g')"
partbase="${part#/dev/}"
partbase="$(printf %s "$partbase" | sed 's,/,!,g')"
size="$(sysfs_size "/sys/block/$diskbase/$partbase")"
fi

db_subst grub-pc/partition_description DEVICE "$part"
db_subst grub-pc/partition_description SIZE "$size"
db_subst grub-pc/partition_description PATH "$path"
db_metaget grub-pc/partition_description description
}

usable_partitions()
{
local last_partition path partition partition_id

last_partition=
for path in / /boot /boot/grub; do
partition="$(grub-probe -t device "$path" || true)"
if [ -z "$partition" ] || [ "$partition" = "$last_partition" ]; then
continue
fi
partition_id="$(device_to_id "$partition" || true)"
echo "$path:$partition_id"
last_partition="$partition"
done | sort -t: -k2
}

get_mountpoint()
{
local relpath boot_mountpoint

relpath="$(grub-mkrelpath "$1")"
boot_mountpoint="${1#$relpath}"
echo "${boot_mountpoint:-/}"
}

config_item()
{
for x in /etc/default/grub /etc/default/grub.d/*.cfg; do
if [ -e "$x" ]; then
. "$x"
fi
done
if [ "$(eval echo "\${$1+set}")" = set ]; then
eval echo "\$$1"
else
return
fi
}

running_in_container()
{
type running-in-container >/dev/null 2>&1 && running-in-container >/dev/null
}

no_nvram_arg() {
db_get grub2/update_nvram
if [ "$RET" = false ]; then
echo "--no-nvram"
fi
}

case "$1" in
configure)
. /usr/share/debconf/confmodule

if dpkg --compare-versions "$2" lt-nl 1.99-1; then
# Force dpkg to replace this directory with a symlink.
if [ ! -L /usr/share/doc/grub-pc ] && [ -d /usr/share/doc/grub-pc ]; then
if rmdir /usr/share/doc/grub-pc 2>/dev/null; then
ln -sf grub-common /usr/share/doc/grub-pc
fi
fi
fi

devicemap_regenerated=

if [ grub-pc = "grub-efi-amd64" ] && dpkg --compare-versions "$2" lt-nl 2.02~beta2-9ubuntu1.17; then
/usr/share/grub/grub-check-signatures
fi

if egrep -q '^[[:space:]]*post(inst|rm)_hook[[:space:]]*=[[:space:]]*(/sbin/|/usr/sbin/)?update-grub' /etc/kernel-img.conf 2>/dev/null; then
echo 'Removing update-grub hooks from /etc/kernel-img.conf in favour of' >&2
echo '/etc/kernel/ hooks.' >&2
sed -ri /etc/kernel-img.conf -e '\%^[[:space:]]*post(inst|rm)_hook[[:space:]]*=[[:space:]]*(/sbin/|/usr/sbin/)?update-grub%d'
fi

case grub-pc in
grub-pc)
mkdir -p /boot/grub

if test -e /boot/grub/device.map && ! test -e /boot/grub/core.img && \
! test -e /boot/grub/i386-pc/core.img; then
# Looks like your device.map was generated by GRUB Legacy, which
# used to generate broken device.map (see #422851). Avoid the risk
# by regenerating it.
grub-mkdevicemap --no-floppy
devicemap_regenerated=1
fi
;;
esac

if test -z "$devicemap_regenerated" && test -s /boot/grub/device.map && \
dpkg --compare-versions "$2" lt-nl 1.98+20100702-1 && \
test "$(uname -s)" = Linux; then
# Earlier versions of GRUB used unstable device names in device.map,
# which caused a variety of problems. There is some risk associated with
# regenerating it (so we prompt the user if it's non-trivial), but on the
# whole it's less risky to move to /dev/disk/by-id/.
devicemap_lines="$(egrep -v '^[[:space:]]+#' /boot/grub/device.map | wc -l)"
grub-mkdevicemap --no-floppy
devicemap_regenerated=1
if test "$devicemap_lines" != 1; then
db_input critical grub2/device_map_regenerated || true
db_go || true
fi
fi

if test -z "$devicemap_regenerated" && \
dpkg --compare-versions "$2" lt-nl 1.99~20101210-2 && \
grep -qs /md-uuid- /boot/grub/device.map; then
echo "Removing MD devices from device.map, since the BIOS cannot read from these." >&2
sed -i '/\/md-uuid-/d' /boot/grub/device.map
fi

tmp_default_grub="$(mktemp -t grub.XXXXXXXXXX)"
trap "rm -f ${tmp_default_grub}" EXIT
cp -p /usr/share/grub/default/grub ${tmp_default_grub}

merge_debconf_into_conf "$tmp_default_grub" GRUB_CMDLINE_LINUX grub2/linux_cmdline
merge_debconf_into_conf "$tmp_default_grub" GRUB_CMDLINE_LINUX_DEFAULT grub2/linux_cmdline_default

case grub-pc in
grub-pc)
merge_debconf_into_conf "$tmp_default_grub" GRUB_TIMEOUT grub-pc/timeout
sed -i -e 's/^\(GRUB_TIMEOUT=\)"\([0-9][0-9]*\)"/\1\2/' "$tmp_default_grub"
db_get grub-pc/hidden_timeout
if [ "$RET" = false ]; then
sed -i -e 's/^GRUB_HIDDEN_TIMEOUT=/#&/' "$tmp_default_grub"
fi
;;
esac

ucf --three-way --debconf-ok --sum-file=/usr/share/grub/default/grub.md5sum ${tmp_default_grub} /etc/default/grub
package="$(ucfq --with-colons /etc/default/grub | cut -d : -f 2)"
if echo $package | grep -q "^grub-" ; then
ucfr --force grub-pc /etc/default/grub
else
ucfr grub-pc /etc/default/grub
fi

case grub-pc in
grub-pc)

fix_mixed_system=
if test -e /boot/grub/stage2 && test -e /boot/grub/menu.lst && \
! test -e /boot/grub/grub2-installed && \
test -z "$UPGRADE_FROM_GRUB_LEGACY"; then
# Unfortunately, it's still possible that the user upgraded fully
# to GRUB 2 in some way other than running
# upgrade-from-grub-legacy; perhaps they ran grub-install by hand
# for some reason. It's really quite difficult to detect this
# situation, because the only difference between this and a
# working chainloaded setup is that in this case grub-setup has
# been run. So, to try to tell the difference, we scan the boot
# sectors of all disks for a GRUB 2 boot sector. Hopefully this
# won't cause too much to explode, since I can't think of a better
# method.
grub2_disks=
for disk in $(all_disks); do
if scan_grub2 "$disk"; then
grub2_disks="${grub2_disks:+$grub2_disks }$(readlink -f "$disk")"
fi
done
if [ "$grub2_disks" ]; then
# No || true here; it's vital that the user sees this, and it's
# better to throw an error than to do the wrong thing.
db_subst grub-pc/mixed_legacy_and_grub2 DISKS "$grub2_disks"
db_input critical grub-pc/mixed_legacy_and_grub2
db_go
db_get grub-pc/mixed_legacy_and_grub2
if [ "$RET" = true ]; then
db_reset grub-pc/install_devices
UPGRADE_FROM_GRUB_LEGACY=1
fix_mixed_system=1
# Fall through to normal installation logic.
fi
fi
fi

# Make sure that Wubi users never see confusing device prompts.
# Wubi is a very specialised hack that does complicated things with
# grub-install diversions to create an image that's chained from the
# Windows boot loader to boot an operating system from a file on a
# Windows file system. In these circumstances, prompting for where
# to install GRUB is not going to help anyone.
wubi_device="$(get_wubi_device)" || true
if [ "$wubi_device" ]; then
db_set grub-pc/install_devices "$wubi_device"
db_fset grub-pc/install_devices seen true
fi

if test -e /boot/grub/stage2 && test -e /boot/grub/menu.lst && \
! test -e /boot/grub/grub2-installed && \
test -z "$UPGRADE_FROM_GRUB_LEGACY"; then
db_get grub-pc/chainload_from_menu.lst
if $RET ; then
# Create core.img (but do not risk writing to MBR).
# Using grub-probe instead of "(hd0)" avoids (UUID=) hack slowness
# in case /boot/grub is not on (hd0) in device.map.
echo "Generating core.img" >&2
grub-install --target=i386-pc --no-floppy --grub-setup=/bin/true "$(grub-probe -t drive /boot/grub)" > /dev/null

# Update menu.lst to reflect that:
# - core.img is present now
# - core.img has to be the first option
echo "Saving menu.lst backup in /boot/grub/menu.lst_backup_by_grub2_postinst" >&2
cp /boot/grub/menu.lst{,_backup_by_grub2_postinst}
echo "Running update-grub Legacy to hook our core.img in it" >&2
LET_US_TRY_GRUB_2=true /usr/lib/grub-legacy/update-grub 2>&1 | sed -e "s/^/ /g" >&2
# We just hooked GRUB 2 in menu.lst; then also generate grub.cfg.
touch /boot/grub/grub.cfg
fi
elif running_in_container; then
# Skip grub-install in containers.
:
elif test -z "$2" || test -e /boot/grub/core.img || \
test -e /boot/grub/i386-pc/core.img || \
test "$UPGRADE_FROM_GRUB_LEGACY" || test "$wubi_device"; then
question=grub-pc/install_devices
device_map="$(grub-mkdevicemap -m - | grep -v '^(fd[0-9]\+)' || true)"
devices="$(echo "$device_map" | cut -f2)"
if dpkg --compare-versions "$2" lt 1.98+20100702-1 && \
test "$(uname -s)" = Linux && [ -z "$wubi_device" ]; then
# Migrate to new by-id naming scheme.
db_get grub-pc/install_devices
old_devices="$(echo "$RET" | sed 's/, / /g')"
new_devices=
# Common-case optimisation: if the list of devices is
# identical to the LHS of grub-mkdevicemap's output, then
# there's no point asking again; just install to all disks.
# (This handles e.g. "(hd0)" with one disk.)
if [ "$(echo "$device_map" | cut -f1 | sort)" = \
"$(echo "$old_devices" | xargs -n1 | sort)" ]; then
new_devices="$(devices_to_ids $devices)"
db_set grub-pc/install_devices "$new_devices"
# Alternatively, we might be installing to a single partition
# on a single disk, and we can deal with that too if there's
# only one available disk and it has an appropriate partition.
# This doesn't necessarily work for multiple disks because now
# the order matters.
elif [ "$(echo "$device_map" | wc -l)" = 1 ] && \
[ "$(echo "$old_devices" | wc -w)" = 1 ] && \
echo "$old_devices" | grep -q ,; then
old_device="${old_devices#(}"
old_device="${old_device%)}"
old_disk="${old_device%,*}"
old_partition="${old_device##*,}"
new_device="$(echo "$device_map" | grep "^($old_disk)" | \
cut -f2)"
new_device="$(device_to_id $new_device)"
if [ "$new_device" ]; then
new_device="$new_device-part$old_partition"
# Run through device_to_id again to check for existence.
new_device="$(device_to_id $new_device)"
fi
if [ "$new_device" ]; then
new_devices="$new_device"
db_set grub-pc/install_devices "$new_device"
fi
fi
if [ -z "$new_devices" ]; then
new_devices="$(devices_to_ids $old_devices)"
db_set grub-pc/install_devices "$new_devices"
# Common-case optimisation: if all devices are translatable
# to by-id and the number of devices there is the same as
# the number of devices GRUB can see, then there's no point
# asking again. (This handles e.g. "/dev/sda" with one
# disk.)
old_devices_count="$(echo "$old_devices" | wc -w)"
new_devices_count="$(echo "$new_devices" | wc -w)"
devices_count="$(echo "$devices" | wc -w)"
if [ "$old_devices_count" != "$new_devices_count" ] || \
[ "$new_devices_count" != "$devices_count" ]; then
db_fset grub-pc/install_devices seen false
db_fset grub-pc/install_devices_empty seen false
fi
fi
else
db_get grub-pc/install_devices
valid=1
for device in $RET; do
if [ ! -e "${device%,}" ]; then
valid=0
break
fi
done
if [ "$valid" = 0 ]; then
question=grub-pc/install_devices_disks_changed
db_set "$question" "$RET"
db_fset "$question" seen false
db_fset grub-pc/install_devices_empty seen false
fi
fi

while :; do
ids=
descriptions=
partitions="$(usable_partitions)"
for device in $devices; do
disk_id="$(device_to_id "$device" || true)"
if [ "$disk_id" ]; then
ids="${ids:+$ids, }$disk_id"
describe_disk "$(readlink -f "$device")" "$disk_id"
RET="$(printf %s "$RET" | sed 's/,/\\,/g')"
descriptions="${descriptions:+$descriptions, }$RET"
for partition_pair in $partitions; do
partition_id="${partition_pair#*:}"
if [ "${partition_id#$disk_id-part}" != "$partition_id" ]; then
ids="${ids:+$ids, }$partition_id"
describe_partition "$(readlink -f "$device")" "$(readlink -f "$partition_id")" "$partition_id" "$(get_mountpoint "${partition_pair%%:*}")"
RET="$(printf %s "$RET" | sed 's/,/\\,/g')"
descriptions="${descriptions:+$descriptions, }$RET"
fi
done
fi
done
# Some "partitions" may in fact be at the disk level, e.g. RAID.
# List these as well if they haven't already been listed.
for partition_pair in $partitions; do
partition_id="${partition_pair#*:}"
if [ "${partition_id#*-part}" = "$partition_id" ]; then
case ", $ids, " in
", $partition_id, ") ;;
*)
ids="${ids:+$ids, }$partition_id"
describe_disk "$(readlink -f "$partition_id")" "$partition_id"
RET="$(printf %s "$RET" | sed 's/,/\\,/g')"
descriptions="${descriptions:+$descriptions, }$RET"
;;
esac
fi
done
db_subst "$question" RAW_CHOICES "$ids"
db_subst "$question" CHOICES "$descriptions"
db_input high "$question" || true
db_go
db_get "$question"
failed_devices=
for i in `echo $RET | sed -e 's/, / /g'` ; do
real_device="$(readlink -f "$i")"
if grub-install --target=i386-pc --force --no-floppy $real_device ; then
# We just installed GRUB 2; then also generate grub.cfg.
touch /boot/grub/grub.cfg
else
failed_devices="$failed_devices $real_device"
fi
done

if [ "$question" != grub-pc/install_devices ]; then
db_set grub-pc/install_devices "$RET"
db_fset grub-pc/install_devices seen true
fi

if [ "$failed_devices" ]; then
if [ "$UPGRADE_FROM_GRUB_LEGACY" ]; then
db_subst grub-pc/install_devices_failed_upgrade FAILED_DEVICES "$failed_devices"
db_fset grub-pc/install_devices_failed_upgrade seen false
if db_input critical grub-pc/install_devices_failed_upgrade; then
db_go
db_get grub-pc/install_devices_failed_upgrade
if [ "$RET" = true ]; then
db_fset "$question" seen false
db_fset grub-pc/install_devices_failed_upgrade seen false
continue
else
exit 1
fi
else
exit 1 # noninteractive
fi
else
db_subst grub-pc/install_devices_failed FAILED_DEVICES "$failed_devices"
db_fset grub-pc/install_devices_failed seen false
if db_input critical grub-pc/install_devices_failed; then
db_go
db_get grub-pc/install_devices_failed
if [ "$RET" = true ]; then
break
else
db_fset "$question" seen false
db_fset grub-pc/install_devices_failed seen false
continue
fi
else
break # noninteractive
fi
fi
fi

db_get grub-pc/install_devices
if [ -z "$RET" ]; then
# Reset the seen flag if the current answer is false, since
# otherwise we'll loop with no indication of why.
db_get grub-pc/install_devices_empty
if [ "$RET" = false ]; then
db_fset grub-pc/install_devices_empty seen false
fi
if db_input critical grub-pc/install_devices_empty; then
db_go
db_get grub-pc/install_devices_empty
if [ "$RET" = true ]; then
break
else
db_fset "$question" seen false
db_fset grub-pc/install_devices_empty seen false
fi
else
break # noninteractive
fi
else
break
fi
done
fi

# /boot/grub/ has more chances of being accessible by GRUB
if test -e /boot/grub/grub.cfg ; then
for i in /usr/share/grub/unicode.pf2 ; do
if test -e $i ; then
cp $i /boot/grub/
fi
done
fi

if [ "$fix_mixed_system" ]; then
# These never contain any valuable information, and they aren't
# useful for boot any more, since we just overwrote MBR/PBR.
rm -f /boot/grub/{{xfs,reiserfs,e2fs,fat,jfs,minix}_stage1_5,stage{1,2}}
# Remove marker file used to indicate that grub-install was run
# rather than upgrade-from-grub-legacy. Since stage2 has been
# removed, we don't need this any more.
rm -f /boot/grub/grub2-installed
fi
;;

grub-efi-ia32|grub-efi-amd64|grub-efi-ia64|grub-efi-arm|grub-efi-arm64)
bootloader_id="$(config_item GRUB_DISTRIBUTOR | tr A-Z a-z | \
cut -d' ' -f1)"
case $bootloader_id in
kubuntu) bootloader_id=ubuntu ;;
esac
if [ "$bootloader_id" ] && [ -d "/boot/efi/EFI/$bootloader_id" ]; then
case grub-pc in
grub-efi-ia32) target=i386-efi ;;
grub-efi-amd64) target=x86_64-efi ;;
grub-efi-ia64) target=ia64-efi ;;
grub-efi-arm) target=arm-efi ;;
grub-efi-arm64) target=arm64-efi ;;
esac
NO_NVRAM="$(no_nvram_arg)"
grub-install --target="$target" "$NO_NVRAM"
fi

# /boot/grub/ has more chances of being accessible by GRUB
for i in /usr/share/grub/unicode.pf2 ; do
if test -e $i ; then
mkdir -p /boot/grub
cp $i /boot/grub/
fi
done
;;

grub-ieee1275)
case $(dpkg --print-architecture) in
ppc64el)
# Output may be empty; if so, just update the core image but
# don't install it to any PReP partition.
prep_bootdev="$(/usr/lib/grub/powerpc-ieee1275/prep-bootdev)"
grub-install --no-nvram --target=powerpc-ieee1275 $prep_bootdev
;;
esac
;;

grub-yeeloong)
grub-install --target=mipsel-loongson
;;
esac

# If grub.cfg has been generated, update it.
if test -e /boot/grub/grub.cfg && ! running_in_container; then
update-grub 3>&-
fi
;;
abort-upgrade|abort-remove|abort-deconfigure)
;;
*)
echo "postinst called with unknown argument \`$1'" >&2
exit 1
;;
esac

# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.



exit 0