#!/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 systemd-detect-virt >/dev/null 2>&1 && systemd-detect-virt --quiet --container } no_nvram_arg() { db_get grub2/update_nvram if [ "$RET" = false ]; then echo "--no-nvram" fi } run_grub_install() { if ! grub-install $@ ; then echo "Failed: grub-install $@" >&2 echo "WARNING: Bootloader is not properly installed, system may not be bootable" >&2 fi } case "$1" in configure) . /usr/share/debconf/confmodule devicemap_regenerated= if egrep -q '^[[:space:]]*post(inst|rm)_hook[[:space:]]*=[[:space:]]*(/sbin/|/usr/sbin/)?update-grub' /etc/kernel-img.conf 2>/dev/null; then echo 'Removing update-grub hooks from /etc/kernel-img.conf in favour of' >&2 echo '/etc/kernel/ hooks.' >&2 sed -ri /etc/kernel-img.conf -e '\%^[[:space:]]*post(inst|rm)_hook[[:space:]]*=[[:space:]]*(/sbin/|/usr/sbin/)?update-grub%d' fi case @PACKAGE@ in grub-pc) mkdir -p /boot/grub if test -e /boot/grub/device.map && ! test -e /boot/grub/core.img && \ ! test -e /boot/grub/@FIRST_CPU_PLATFORM@/core.img; then # Looks like your device.map was generated by GRUB Legacy, which # used to generate broken device.map (see #422851). Avoid the risk # by regenerating it. grub-mkdevicemap --no-floppy devicemap_regenerated=1 fi ;; esac if test -z "$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 "$tmp_default_grub" GRUB_CMDLINE_LINUX_DEFAULT grub2/linux_cmdline_default case @PACKAGE@ in grub-pc) merge_debconf_into_conf "$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=/#&/' "$tmp_default_grub" fi ;; grub-ieee1275) if grep ^platform /proc/cpuinfo | grep -q PowerNV; then cat <<-EOF >>"$tmp_default_grub" # Disable os-prober for ppc64el on the PowerNV platform (for Petitboot) GRUB_DISABLE_OS_PROBER=true EOF fi ;; esac # LLIUREX HACK #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 $package | grep -q "^grub-" ; then ucfr --force @PACKAGE@ /etc/default/grub else ucfr @PACKAGE@ /etc/default/grub fi case @PACKAGE@ in grub-pc) fix_mixed_system= if test -e /boot/grub/stage2 && test -e /boot/grub/menu.lst && \ ! test -e /boot/grub/grub2-installed && \ test -z "$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_fset grub-pc/mixed_legacy_and_grub2 seen false 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 "$2" || test -e /boot/grub/core.img || \ test -e /boot/grub/@FIRST_CPU_PLATFORM@/core.img || \ test "$UPGRADE_FROM_GRUB_LEGACY" || test "$wubi_device"; then question=grub-pc/install_devices priority=high device_map="$(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 [ "$valid" = 0 ]; then question=grub-pc/install_devices_disks_changed priority=critical db_set "$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 "$priority" "$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 for i in /usr/share/grub/unicode.pf2 ; do if test -e $i ; then mkdir -p /boot/grub cp $i /boot/grub/ fi done if [ "$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 dpkg --compare-versions "$2" lt-nl 2.02~beta2-36ubuntu3.10; then if [ -e "/boot/efi/EFI/${bootloader_id}/fbx64.efi" ]; then rm -f "/boot/efi/EFI/${bootloader_id}/fbx64.efi"; fi fi if [ "$bootloader_id" ] && [ -d "/boot/efi/EFI/$bootloader_id" ]; then case @PACKAGE@ in grub-efi-ia32) target=i386-efi ;; grub-efi-amd64) target=x86_64-efi ;; grub-efi-ia64) target=ia64-efi ;; grub-efi-arm) target=arm-efi ;; grub-efi-arm64) target=arm64-efi ;; esac db_get grub2/force_efi_extra_removable if [ "$RET" = true ]; then FORCE_EXTRA_REMOVABLE="--force-extra-removable" fi NO_NVRAM="$(no_nvram_arg)" run_grub_install --target="$target" "$FORCE_EXTRA_REMOVABLE" "$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 if type update-secureboot-policy >/dev/null 2>&1; then update-secureboot-policy || true fi ;; 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)" NO_NVRAM="$(no_nvram_arg)" run_grub_install --target=powerpc-ieee1275 $prep_bootdev "$NO_NVRAM" ;; esac ;; grub-yeeloong) run_grub_install --target=mipsel-loongson ;; grub-xen) # Install for x86_64 regardless of arch, since a 32-bit userspace can still boot with a 64-bit kernel. mkdir -p /boot/xen run_grub_install --target=x86_64-xen case $(dpkg --print-architecture) in i386) run_grub_install --target=i386-xen ;; esac ;; 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. #DEBHELPER# exit 0