From 1c9ec236bdfcb94f2363bbbb9276fe04dbc295ea Mon Sep 17 00:00:00 2001
From: hzy <hzyitc@outlook.com>
Date: Thu, 20 Apr 2023 01:50:04 +0800
Subject: [PATCH] Only remove the special uInitrd when remove kernel

`initrd.img-${version}` will be remove by command `update-initramfs -d -k "${version}"`,
so we don't need to care about it.
---
 .../kernel/postinst.d/xx-initramfs-cleanup    | 27 -------------------
 .../kernel/postrm.d/initramfs-remove-uInitrd  | 20 ++++++++++++++
 .../etc/kernel/postrm.d/xx-initramfs-cleanup  | 27 -------------------
 3 files changed, 20 insertions(+), 54 deletions(-)
 delete mode 100755 packages/bsp/common/etc/kernel/postinst.d/xx-initramfs-cleanup
 create mode 100755 packages/bsp/common/etc/kernel/postrm.d/initramfs-remove-uInitrd
 delete mode 100755 packages/bsp/common/etc/kernel/postrm.d/xx-initramfs-cleanup

diff --git a/packages/bsp/common/etc/kernel/postinst.d/xx-initramfs-cleanup b/packages/bsp/common/etc/kernel/postinst.d/xx-initramfs-cleanup
deleted file mode 100755
index 657ef30ec5..0000000000
--- a/packages/bsp/common/etc/kernel/postinst.d/xx-initramfs-cleanup
+++ /dev/null
@@ -1,27 +0,0 @@
-#!/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: $available_size_boot_device" >&2
-}
-mountpoint -q /boot && check_boot_dev
-
-exit 0
diff --git a/packages/bsp/common/etc/kernel/postrm.d/initramfs-remove-uInitrd b/packages/bsp/common/etc/kernel/postrm.d/initramfs-remove-uInitrd
new file mode 100755
index 0000000000..4fe2093dd1
--- /dev/null
+++ b/packages/bsp/common/etc/kernel/postrm.d/initramfs-remove-uInitrd
@@ -0,0 +1,20 @@
+#!/bin/sh
+
+# Remove /boot/uInitrd-${version} created by /etc/initramfs/post-update.d/99-uboot
+# Unfortunately, `update-initramfs` only support `post-update.d`, doesn't have something like `post-delete.d`
+# So let's clean it when we remove a kernel.
+
+version="$1"
+
+# avoid running multiple times
+# Use the same conditions as `initramfs-tools`.
+if [ -n "$DEB_MAINT_PARAMS" ]; then
+	eval set -- "$DEB_MAINT_PARAMS"
+	if [ -z "$1" ] || [ "$1" != "remove" ]; then
+		exit 0
+	fi
+fi
+
+rm -f "/boot/uInitrd-${version}"
+
+exit 0
diff --git a/packages/bsp/common/etc/kernel/postrm.d/xx-initramfs-cleanup b/packages/bsp/common/etc/kernel/postrm.d/xx-initramfs-cleanup
deleted file mode 100755
index 0aabf4cd3e..0000000000
--- a/packages/bsp/common/etc/kernel/postrm.d/xx-initramfs-cleanup
+++ /dev/null
@@ -1,27 +0,0 @@
-#!/bin/sh
-# echo "DEBUG: POSTRM: 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" ] || [ "$1" != "remove" ]; then
-		exit 0
-	fi
-fi
-
-files="$(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