first commit

external/packages/bsp/common/etc/kernel/postinst.d/xx-initramfs-cleanup

@@ -0,0 +1,27 @@
+#!/bin/sh
+# echo "DEBUG: postinst: initramfs-clean: cmd: $@" >&2
+# avoid running multiple times
+# This script should be run after the initramfs-tools script
+# and under the same conditions.
+if [ -n "$DEB_MAINT_PARAMS" ]; then
+	eval set -- "$DEB_MAINT_PARAMS"
+	if [ -z "$1" ] || [ "$1" != "configure" ]; then
+		exit 0
+	fi
+fi
+
+files="$(find /boot -maxdepth 1 -name 'initrd.img-*' -o -name 'uInitrd-*')"
+
+for f in $files; do
+	if [ ! -d /lib/modules/"${f#*-}" ]; then
+		echo "Remove unused generated file: $f"; rm $f
+	fi
+done
+
+check_boot_dev (){
+	available_size_boot_device=$(findmnt --noheadings --output AVAIL --target /boot)
+	echo "Free space after deleting the package $DPKG_MAINTSCRIPT_PACKAGE in /boot: $available_size_boot_device" >&2
+}
+mountpoint -q /boot && check_boot_dev
+
+exit 0