Current File : /var/lib/dpkg/info/grub-pc.postinst
#!/bin/bash
set -e
# Apply a sed expression using extended regular expressions in place to a
# file, if it exists. The file is the first argument in order to work
# neatly with apply_conf_tweaks.
sed_conf()
{
if [ -e "$1" ]; then
sed -i -re "$2" "$1"
fi
}
# Substitute a debconf answer into a configuration file with the syntax of
# /etc/default/grub.
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
}
# Apply the same configuration tweak to multiple files.
apply_conf_tweaks()
{
local files; files="$1"
local cmd; cmd="$2"
local file
shift 2
for file in $files; do
if [ -e "$file" ]; then
"$cmd" "$file" "$@"
fi
done
}
get_wubi_device()
{
if [ ! -x /usr/share/lupin-support/grub-mkimage ] || \
! /usr/share/lupin-support/grub-mkimage --test; then
return 1
fi
local bootdev="$(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
}
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"
}
maybe_udevadm()
{
if command -v udevadm >/dev/null 2>&1; then
udevadm "$@" || true
fi
}
# Returns value in $RET, like a debconf command.
describe_disk()
{
local disk id sysfs_path disk_basename size model
disk="$1"
id="$2"
model=
case $(uname -s) in
Linux)
sysfs_path="$(maybe_udevadm info -n "$disk" -q path)"
if [ -z "$sysfs_path" ]; then
sysfs_path="/block/$(printf %s "${disk#/dev/}" | sed 's,/,!,g')"
fi
size="$(sysfs_size "/sys$sysfs_path")"
model="$(maybe_udevadm info -n "$disk" -q property | sed -n 's/^ID_MODEL=//p')"
if [ -z "$model" ]; then
model="$(maybe_udevadm info -n "$disk" -q property | sed -n 's/^DM_NAME=//p')"
if [ -z "$model" ]; then
model="$(maybe_udevadm info -n "$disk" -q property | sed -n 's/^MD_NAME=//p')"
if [ -z "$model" ] && command -v dmsetup >/dev/null 2>&1; then
model="$(dmsetup info -c --noheadings -o name "$disk" 2>/dev/null || true)"
fi
fi
fi
;;
GNU/kFreeBSD)
disk_basename=$(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 sysfs_path diskbase partbase size
disk="$1"
part="$2"
id="$3"
path="$4"
sysfs_path="$(maybe_udevadm info -n "$part" -q path)"
if [ -z "$sysfs_path" ]; then
diskbase="${disk#/dev/}"
diskbase="$(printf %s "$diskbase" | sed 's,/,!,g')"
partbase="${part#/dev/}"
partbase="$(printf %s "$partbase" | sed 's,/,!,g')"
sysfs_path="/block/$diskbase/$partbase"
fi
size="$(sysfs_size "/sys$sysfs_path")"
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:-/}"
}
# Parse /proc/mounts and find out the mount for the given device.
# The device must be a real device in /dev, not a symlink to one.
get_mounted_device()
{
mountpoint="$1"
cat /proc/mounts | while read -r line; do
set -f
set -- $line
set +f
if [ "$2" = "$mountpoint" ]; then
echo "$1"
break
fi
done
}
config_item()
{
for x in /etc/default/grub /etc/default/grub.d/*.cfg; do
if [ -e "$x" ]; then
# Lose any output here so we don't confuse our
# caller. The xen packages echo stuff here, Aargh!
. "$x" > /dev/null
fi
done
if [ "$(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
}
get_cloud_style_installation()
{
db_get $1/cloud_style_installation
$RET
}
no_extra_removable_arg()
{
if grub-install --help | grep -q no-extra-removable; then
removable=""
no_removable="--no-extra-removable"
elif grub-install --help | grep -q force-extra-removable; then
removable="--force-extra-removable"
no_removable=""
else
removable=""
no_removable=""
fi
# Ignore this setting in xenial and bionic, see https://launchpad.net/bugs/1930742
local codename="$(cat /etc/os-release | sed -n 's/VERSION_CODENAME=//p')"
db_get grub2/no_efi_extra_removable
if [ "$RET" = true ] && [ "$codename" != xenial ] && [ "$codename" != bionic ]; then
echo "$no_removable"
else
echo "$removable"
fi
}
no_nvram_arg() {
db_get grub2/update_nvram
if [ "$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
}
run_grub_multi_install()
{
tool=/usr/lib/grub/grub-multi-install
if [ ! -x $tool ]; then
tool=grub-install
fi
if ! $tool $@ ; 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 [ grub-pc = "grub-efi-amd64" ] && dpkg --compare-versions "$2" lt-nl 2.02-2ubuntu11; then
if [ -x /usr/share/grub/grub-check-signatures ]; then
/usr/share/grub/grub-check-signatures
fi
fi
if egrep -q '^[[:space:]]*post(inst|rm)_hook[[:space:]]*=[[:space:]]*(/sbin/|/usr/sbin/)?update-grub' /etc/kernel-img.conf 2>/dev/null; then
echo 'Removing update-grub hooks from /etc/kernel-img.conf in favour of' >&2
echo '/etc/kernel/ hooks.' >&2
sed -ri /etc/kernel-img.conf -e '\%^[[:space:]]*post(inst|rm)_hook[[:space:]]*=[[:space:]]*(/sbin/|/usr/sbin/)?update-grub%d'
fi
mkdir -p /boot/grub
case grub-pc in
grub-pc)
if test -e /boot/grub/device.map && ! test -e /boot/grub/core.img && \
! test -e /boot/grub/i386-pc/core.img; then
# Looks like your device.map was generated by GRUB Legacy, which
# used to generate broken device.map (see #422851). Avoid the risk
# by regenerating it.
grub-mkdevicemap --no-floppy
devicemap_regenerated=1
fi
;;
esac
if test -z "$devicemap_regenerated" && \
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}
# Apply configuration from debconf to both the template configuration
# file (so that any ucf conflict resolution is shown with the configured
# values in place) and to /etc/default/grub (in order that debconf
# changes are effective even if we have to use UCF_FORCE_CONFFOLD=1).
#
# The config script takes care to read current values from
# /etc/default/grub before possibly prompting the user to change them,
# so this should comply with policy's strictures on configuration file
# handling: the debconf prompts constitute an explicit administrator
# request to change the configuration file.
#
# If the administrator changes their answers to any of these debconf
# questions in the same run as a change to the template, then they'll
# get a spurious ucf conflict. To fix this, we'd need to keep track of
# the old answers, substitute the old answers into $tmp_default_grub,
# and substitute the new answers into /etc/default/grub. Fortunately,
# debconf won't normally ask these questions again during an upgrade, so
# this should be rare in practice.
conf_files="$tmp_default_grub /etc/default/grub"
apply_conf_tweaks "$conf_files" merge_debconf_into_conf GRUB_CMDLINE_LINUX grub2/linux_cmdline
apply_conf_tweaks "$conf_files" merge_debconf_into_conf GRUB_CMDLINE_LINUX_DEFAULT grub2/linux_cmdline_default
# Horrible stuff here, as the os-prober option is a negative
# setting (GRUB_DISABLE_OS_PROBER). To not confuse people with
# double negative questions in templates, invert it here.
db_get grub2/enable_os_prober
if [ "$RET" = false ]; then
# enable == false -> put in place the commented-out default
# #GRUB_DISABLE_OS_PROBER=false that we ship with
apply_conf_tweaks "$conf_files" sed_conf 's/^.*GRUB_DISABLE_OS_PROBER.*$/#GRUB_DISABLE_OS_PROBER=false/'
else
# enable == true -> put in place a valid GRUB_DISABLE_OS_PROBER=false
apply_conf_tweaks "$conf_files" sed_conf 's/^.*GRUB_DISABLE_OS_PROBER.*$/GRUB_DISABLE_OS_PROBER=false/'
fi
case grub-pc in
grub-pc)
apply_conf_tweaks "$conf_files" merge_debconf_into_conf GRUB_TIMEOUT grub-pc/timeout
apply_conf_tweaks "$conf_files" sed_conf 's/^(GRUB_TIMEOUT=)"([0-9][0-9]*)"/\1\2/'
db_get grub-pc/hidden_timeout
if [ "$RET" = false ]; then
apply_conf_tweaks "$conf_files" sed_conf 's/^GRUB_HIDDEN_TIMEOUT=/#&/'
fi
;;
grub-ieee1275)
if grep ^platform /proc/cpuinfo | grep -q PowerNV; then
cat <<-EOF >>"$tmp_default_grub"
# Disable os-prober for ppc64el on the PowerNV platform (for Petitboot)
GRUB_DISABLE_OS_PROBER=true
EOF
fi
;;
esac
# If the template configuration file hasn't changed, then no conflict is
# possible. ucf can't figure this out for itself since we apply
# debconf-based customisations on top of the template configuration
# file.
if [ -e /var/lib/grub/ucf/grub.previous ] && \
cmp -s /usr/share/grub/default/grub /var/lib/grub/ucf/grub.previous && \
[ -e /etc/default/grub ]; then
ucf_env=UCF_FORCE_CONFFOLD=1
else
ucf_env=
fi
env $ucf_env ucf --three-way --debconf-ok --sum-file=/usr/share/grub/default/grub.md5sum "$tmp_default_grub" /etc/default/grub
cp -aZ /usr/share/grub/default/grub /var/lib/grub/ucf/grub.previous
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_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 get_cloud_style_installation "grub-pc"; then
basedev=$(grub-probe -t device /boot/ | sed -Ee 's/[0-9]+$//' -e 's/([0-9])p$/\1/')
grub-install --target=i386-pc "$basedev"
elif 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
priority=high
device_map="$(grub-mkdevicemap -m - | grep -v '^(fd[0-9]\+)' || true)"
devices="$(echo "$device_map" | cut -f2)"
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
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=
echo "grub-pc: Running grub-install ..."
for i in $RET; do
real_device="$(readlink -f "${i%,}")"
if [ ! -e "$real_device" ]; then
echo "$real_device does not exist, so cannot grub-install to it!" >&2
failed_devices="$failed_devices $real_device"
else
if grub-install --target=i386-pc --force --no-floppy $real_device ; then
echo " grub-install success for $real_device"
# We just installed GRUB 2; then also generate grub.cfg.
touch /boot/grub/grub.cfg
else
echo " grub-install failure for $real_device"
failed_devices="$failed_devices $real_device"
fi
fi
done
if [ "$question" != grub-pc/install_devices ] && [ "$RET" ]; then
# XXX cjwatson 2019-02-26: The description of
# grub-pc/install_devices_disks_changed ought to explain that
# selecting no devices will leave the configuration unchanged
# so that you'll be prompted again next time, but it's a bit
# close to the Debian 10 release to be introducing new
# translatable text. For now, it should be sufficient to
# avoid losing configuration data.
db_set grub-pc/install_devices "$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 "$question" seen false
db_fset grub-pc/install_devices_failed_upgrade seen false
continue
else
exit 1
fi
else
echo "You must correct your GRUB install devices before proceeding:" >&2
echo >&2
echo " DEBIAN_FRONTEND=dialog dpkg --configure grub-pc" >&2
echo " dpkg --configure -a" >&2
exit 1 # noninteractive
fi
else
db_subst grub-pc/install_devices_failed FAILED_DEVICES "$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
echo "You must correct your GRUB install devices before proceeding:" >&2
echo >&2
echo " DEBIAN_FRONTEND=dialog dpkg --configure grub-pc" >&2
echo " dpkg --configure -a" >&2
exit 1 # noninteractive
fi
fi
fi
db_get "$question"
if [ -z "$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
# UBUNTU: Here we know that noniteractive frontend is used and
# install_devices are empty and install_devices_empty is false.
# This is hit in images where initial configuration was
# avoided due to 'running_in_container', but further
# noninteractive upgrades/reinstallations are made.
# We don't want to error out in such cases, instead continue
# for now, but still prompt on the next interactive run.
# (Prompoting might never have to happen e.g. if a
# service configures install_devices on first boot).
break
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
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|grub-efi-riscv64)
bootloader_id="$(config_item GRUB_DISTRIBUTOR | tr A-Z a-z | \
cut -d' ' -f1)"
case $bootloader_id in
kubuntu) bootloader_id=ubuntu ;;
devuan) bootloader_id=debian ;;
esac
case grub-pc in
grub-efi-ia32) target=i386-efi ;;
grub-efi-amd64) target=x86_64-efi ;;
grub-efi-ia64) target=ia64-efi ;;
grub-efi-arm) target=arm-efi ;;
grub-efi-arm64) target=arm64-efi ;;
grub-efi-riscv64) target=riscv64-efi ;;
esac
if [ "$bootloader_id" ] && [ -e "/boot/grub/$target/core.efi" ]; then
if dpkg --compare-versions "$2" lt-nl 2.02-1~; then
# Try to not break people upgrading by suddenly installing things
# to /EFI/BOOT without knowing if it might break.
db_get grub2/force_efi_extra_removable || true
if [ "$RET" = false ]; then
db_set grub2/no_efi_extra_removable true
db_fset grub2/no_efi_extra_removable seen true
fi
db_reset grub2/force_efi_extra_removable || true
if [ -e "/boot/efi/EFI/${bootloader_id}/fbx64.efi" ]; then
rm -f "/boot/efi/EFI/${bootloader_id}/fbx64.efi";
fi
fi
NO_EXTRA_REMOVABLE="$(no_extra_removable_arg)"
NO_NVRAM="$(no_nvram_arg)"
run_grub_multi_install --target="$target" "$NO_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
cp $i /boot/grub/
fi
done
if type update-secureboot-policy >/dev/null 2>&1; then
update-secureboot-policy || true
fi
;;
grub-ieee1275)
case $(dpkg --print-architecture) in
powerpc|ppc64|ppc64el)
# Output may be empty; if so, just update the core image but
# don't install it to any PReP partition.
prep_bootdev="$(/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
# Similarly, the PVH boot loader is usable regardless of arch.
run_grub_install --target=i386-xen_pvh
;;
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 \`$1'" >&2
exit 1
;;
esac
# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.
# Automatically added by dh_installdeb/13.14.1ubuntu5
dpkg-maintscript-helper dir_to_symlink /usr/share/doc/grub-pc grub-common 1.99-1\~ -- "$@"
# End automatically added section
exit 0
Mini Shell