Add some stuff

systems/lctr-a72xx/fs/etc/kernel/postinst.d/apt-auto-removal

@@ -0,0 +1,83 @@
+#!/bin/sh
+set -e
+# Mark as not-for-autoremoval those kernel packages that are:
+#  - the currently booted version
+#  - the kernel version we've been called for
+#  - the latest kernel version (as determined by debian version number)
+#  - the second-latest kernel version
+#
+# In the common case this results in two kernels saved (booted into the
+# second-latest kernel, we install the latest kernel in an upgrade), but
+# can save up to four. Kernel refers here to a distinct release, which can
+# potentially be installed in multiple flavours counting as one kernel.
+
+eval $(apt-config shell APT_CONF_D Dir::Etc::parts/d)
+test -n "${APT_CONF_D}" || APT_CONF_D="/etc/apt/apt.conf.d"
+config_file="${APT_CONF_D}/01autoremove-kernels"
+
+eval $(apt-config shell DPKG Dir::bin::dpkg/f)
+test -n "$DPKG" || DPKG="/usr/bin/dpkg"
+
+list="$("${DPKG}" -l | awk '/^[ih][^nc][ ]+(linux|kfreebsd|gnumach)-image-[0-9]+\./ && $2 !~ /-dbg(:.*)?$/ && $2 !~ /-dbgsym(:.*)?$/ { print $2,$3; }' \
+   | sed -e 's#^\(linux\|kfreebsd\|gnumach\)-image-##' -e 's#:[^:]\+ # #')"
+debverlist="$(echo "$list" | cut -d' ' -f 2 | sort --unique --reverse --version-sort)"
+
+if [ -n "$1" ]; then
+	installed_version="$(echo "$list" | awk "\$1 == \"$1\" { print \$2;exit; }")"
+fi
+unamer="$(uname -r | tr '[A-Z]' '[a-z]')"
+if [ -n "$unamer" ]; then
+	running_version="$(echo "$list" | awk "\$1 == \"$unamer\" { print \$2;exit; }")"
+fi
+# ignore the currently running version if attempting a reproducible build
+if [ -n "${SOURCE_DATE_EPOCH}" ]; then
+	unamer=""
+	running_version=""
+fi
+latest_version="$(echo "$debverlist" | sed -n 1p)"
+previous_version="$(echo "$debverlist" | sed -n 2p)"
+
+debkernels="$(echo "$latest_version
+$installed_version
+$running_version
+$previous_version" | sort -u | sed -e '/^$/ d')"
+kernels="$( (echo "$1
+$unamer"; for deb in $debkernels; do echo "$list" | awk "\$2 == \"$deb\" { print \$1; }"; done; ) \
+   | sed -e 's#\([\.\+]\)#\\\1#g' -e '/^$/ d' | sort -u)"
+
+generateconfig() {
+	cat <<EOF
+// DO NOT EDIT! File autogenerated by $0
+APT::NeverAutoRemove
+{
+EOF
+	for package in $(apt-config dump --no-empty --format '%v%n' 'APT::VersionedKernelPackages'); do
+		for kernel in $kernels; do
+			echo "   \"^${package}-${kernel}$\";"
+		done
+	done
+	echo '};'
+	if [ "${APT_AUTO_REMOVAL_KERNELS_DEBUG:-true}" = 'true' ]; then
+		cat <<EOF
+/* Debug information:
+# dpkg list:
+$(dpkg -l | grep '\(linux\|kfreebsd\|gnumach\)-image-')
+# list of installed kernel packages:
+$list
+# list of different kernel versions:
+$debverlist
+# Installing kernel: $installed_version ($1)
+# Running kernel: ${running_version:-ignored} (${unamer:-ignored})
+# Last kernel: $latest_version
+# Previous kernel: $previous_version
+# Kernel versions list to keep:
+$debkernels
+# Kernel packages (version part) to protect:
+$kernels
+*/
+EOF
+	fi
+}
+generateconfig "$@" > "${config_file}.dpkg-new"
+mv -f "${config_file}.dpkg-new" "$config_file"
+chmod 444 "$config_file"

systems/lctr-a72xx/fs/etc/kernel/postinst.d/initramfs-tools

@@ -0,0 +1,36 @@
+#!/bin/sh -e
+
+version="$1"
+bootopt=""
+
+command -v update-initramfs >/dev/null 2>&1 || exit 0
+
+# passing the kernel version is required
+if [ -z "${version}" ]; then
+	echo >&2 "W: initramfs-tools: ${DPKG_MAINTSCRIPT_PACKAGE:-kernel package} did not pass a version number"
+	exit 2
+fi
+
+# exit if kernel does not need an initramfs
+if [ "$INITRD" = 'No' ]; then
+	exit 0
+fi
+
+# absolute file name of kernel image may be passed as a second argument;
+# create the initrd in the same directory
+if [ -n "$2" ]; then
+	bootdir=$(dirname "$2")
+	bootopt="-b ${bootdir}"
+fi
+
+# avoid running multiple times
+if [ -n "$DEB_MAINT_PARAMS" ]; then
+	eval set -- "$DEB_MAINT_PARAMS"
+	if [ -z "$1" ] || [ "$1" != "configure" ]; then
+		exit 0
+	fi
+fi
+
+# we're good - create initramfs.  update runs do_bootloader
+# shellcheck disable=SC2086
+INITRAMFS_TOOLS_KERNEL_HOOK=1 update-initramfs -c -k "${version}" ${bootopt} >&2

systems/lctr-a72xx/fs/etc/kernel/postinst.d/unattended-upgrades

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+case "$DPKG_MAINTSCRIPT_PACKAGE::$DPKG_MAINTSCRIPT_NAME" in
+   linux-image-extra*::postrm)
+      exit 0;;
+esac
+
+if [ -d /var/run ]; then
+    touch /var/run/reboot-required
+    if ! grep -q "^$DPKG_MAINTSCRIPT_PACKAGE$" /var/run/reboot-required.pkgs 2> /dev/null ; then
+        echo "$DPKG_MAINTSCRIPT_PACKAGE" >> /var/run/reboot-required.pkgs
+    fi
+fi

systems/lctr-a72xx/fs/etc/kernel/postinst.d/update-notifier

@@ -0,0 +1 @@
+/usr/share/update-notifier/notify-reboot-required

systems/lctr-a72xx/fs/etc/kernel/postinst.d/zz-flash-kernel

@@ -0,0 +1,38 @@
+#!/bin/sh
+
+# see Chapter 8 of Debian Linux Kernel Handbook
+
+set -e
+
+# conffile still present, but flash-kernel removed
+if ! which flash-kernel >/dev/null 2>&1; then
+    exit 0
+fi
+
+# this script is used as postinst.d and postrm.d script; this is used to
+# differentiate between the two
+self="$0"
+
+# see 8.1, Kernel hooks
+abi="$1"
+# ignored
+_vmlinuz="${2:-/boot/vmlinuz-$abi}"
+set -- $DEB_MAINT_PARAMS
+action="$1"
+action="${action#\'}"
+action="${action%\'}"
+# ignored
+_version="$2"
+_version="${version#\'}"
+_version="${version%\'}"
+
+# only call flash-kernel once on install, upgrade, removal or purge
+# XXX apparently kernel postinst doesn't always pass maintainer scripts
+# arguments
+export FK_KERNEL_HOOK_SCRIPT="$(basename "$(dirname "$self")")"
+case "$FK_KERNEL_HOOK_SCRIPT/$action" in
+  postinst.d/configure|postinst.d/|postrm.d/remove|postrm.d/)
+    exec flash-kernel "$abi"
+  ;;
+esac
+

systems/lctr-a72xx/fs/etc/kernel/postrm.d/initramfs-tools

@@ -0,0 +1,36 @@
+#!/bin/sh -e
+
+version="$1"
+bootopt=""
+
+[ -x /usr/sbin/update-initramfs ] || exit 0
+
+# passing the kernel version is required
+if [ -z "${version}" ]; then
+	echo >&2 "W: initramfs-tools: ${DPKG_MAINTSCRIPT_PACKAGE:-kernel package} did not pass a version number"
+	exit 0
+fi
+
+# exit if custom kernel does not need an initramfs
+if [ "$INITRD" = 'No' ]; then
+	exit 0
+fi
+
+# absolute file name of kernel image may be passed as a second argument;
+# create the initrd in the same directory
+if [ -n "$2" ]; then
+	bootdir=$(dirname "$2")
+	bootopt="-b ${bootdir}"
+fi
+
+# avoid running multiple times
+if [ -n "$DEB_MAINT_PARAMS" ]; then
+	eval set -- "$DEB_MAINT_PARAMS"
+	if [ -z "$1" ] || [ "$1" != "remove" ]; then
+		exit 0
+	fi
+fi
+
+# delete initramfs
+# shellcheck disable=SC2086
+INITRAMFS_TOOLS_KERNEL_HOOK=1 update-initramfs -d -k "${version}" ${bootopt} >&2

systems/lctr-a72xx/fs/etc/kernel/postrm.d/zz-flash-kernel

@@ -0,0 +1,38 @@
+#!/bin/sh
+
+# see Chapter 8 of Debian Linux Kernel Handbook
+
+set -e
+
+# conffile still present, but flash-kernel removed
+if ! which flash-kernel >/dev/null 2>&1; then
+    exit 0
+fi
+
+# this script is used as postinst.d and postrm.d script; this is used to
+# differentiate between the two
+self="$0"
+
+# see 8.1, Kernel hooks
+abi="$1"
+# ignored
+_vmlinuz="${2:-/boot/vmlinuz-$abi}"
+set -- $DEB_MAINT_PARAMS
+action="$1"
+action="${action#\'}"
+action="${action%\'}"
+# ignored
+_version="$2"
+_version="${version#\'}"
+_version="${version%\'}"
+
+# only call flash-kernel once on install, upgrade, removal or purge
+# XXX apparently kernel postinst doesn't always pass maintainer scripts
+# arguments
+export FK_KERNEL_HOOK_SCRIPT="$(basename "$(dirname "$self")")"
+case "$FK_KERNEL_HOOK_SCRIPT/$action" in
+  postinst.d/configure|postinst.d/|postrm.d/remove|postrm.d/)
+    exec flash-kernel "$abi"
+  ;;
+esac
+