Copy instand of move the boot files for symbolic-unsupported /boot filesystem

Just for keeping them

lib/functions/compilation/kernel-debs.sh

@@ -274,21 +274,14 @@ function kernel_package_callback_linux_image() {
 				test -d ${debian_kernel_hook_dir}/${script}.d && run-parts --arg="${kernel_version_family}" --arg="/${installed_image_path}" ${debian_kernel_hook_dir}/${script}.d
 			KERNEL_HOOK_DELEGATION
 
-			if [[ "${script}" == "preinst" ]]; then
-				cat <<- HOOK_FOR_REMOVE_VFAT_BOOT_FILES
-					if is_boot_dev_vfat; then
-						rm -f /boot/System.map* /boot/config* /boot/vmlinuz* /boot/$image_name /boot/uImage
-					fi
-				HOOK_FOR_REMOVE_VFAT_BOOT_FILES
-			fi
-
 			# @TODO: only if u-boot, only for postinst. Gotta find a hook scheme for these...
 			if [[ "${script}" == "postinst" ]]; then
 				cat <<- HOOK_FOR_LINK_TO_LAST_INSTALLED_KERNEL # image_name="${NAME_KERNEL}", above
 					touch /boot/.next
 					if is_boot_dev_vfat; then
-						echo "Armbian: FAT32 /boot: move last-installed kernel to '$image_name'..."
-						mv -v /${installed_image_path} /boot/${image_name}
+						echo "Armbian: FAT32 /boot: copy last-installed kernel to '$image_name'..."
+						cp -vf "/${installed_image_path}" "/boot/${image_name}.new"
+						mv -vf "/boot/${image_name}.new" "/boot/${image_name}"
 					else
 						echo "Armbian: update last-installed kernel symlink to '$image_name'..."
 						ln -sfv $(basename "${installed_image_path}") /boot/$image_name
@@ -346,8 +339,10 @@ function kernel_package_callback_linux_dtb() {
 				echo "Armbian: DTB: symlinking /boot/dtb to /boot/dtb-${kernel_version_family}..."
 				ln -sfTv "dtb-${kernel_version_family}" dtb
 			else
-				echo "Armbian: DTB: FAT32: moving /boot/dtb-${kernel_version_family} to /boot/dtb ..."
-				mv -v "dtb-${kernel_version_family}" dtb
+				echo "Armbian: DTB: FAT32: copying /boot/dtb-${kernel_version_family} to /boot/dtb ..."
+				rm -rf "dtb.new"
+				cp -r "dtb-${kernel_version_family}" "dtb.new"
+				mv "dtb.new" "dtb"
 			fi
 		EOT
 	)

packages/bsp/common/etc/initramfs/post-update.d/99-uboot

@@ -8,8 +8,9 @@ mkimage -A $INITRD_ARCH -O linux -T ramdisk -C gzip -n uInitrd -d $2 $tempname
 
 echo "update-initramfs: Armbian: Symlinking ${tempname} to /boot/uInitrd" >&2
 ln -sfv $(basename $tempname) /boot/uInitrd || {
-	echo "update-initramfs: Symlink failed, moving ${tempname} to /boot/uInitrd" >&2
-	mv -v $tempname /boot/uInitrd
+	echo "update-initramfs: Symlink failed, copying ${tempname} to /boot/uInitrd" >&2
+	cp -vf "$tempname" "/boot/uInitrd.new"
+	mv -vf "/boot/uInitrd.new" "/boot/uInitrd"
 }
 
 echo "update-initramfs: Armbian: done." >&2

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

@@ -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

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

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

@@ -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