Move all to deprecated folder.

deprecated/firmware/buildroot/fs/iso9660/Config.in

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+config BR2_TARGET_ROOTFS_ISO9660
+	bool "iso image"
+	depends on (BR2_i386 || BR2_x86_64)
+	depends on BR2_LINUX_KERNEL
+	depends on BR2_TARGET_GRUB || \
+		BR2_TARGET_GRUB2 || \
+		BR2_TARGET_SYSLINUX_ISOLINUX
+	select BR2_LINUX_KERNEL_INSTALL_TARGET \
+	       if (!BR2_TARGET_ROOTFS_ISO9660_INITRD && !BR2_TARGET_ROOTFS_INITRAMFS)
+	help
+	  Build a bootable ISO9660 image. By default, the root
+	  filesystem is directly packed as the ISO9660 filesystem,
+	  which means the root filesystem will be read-only. It
+	  requires ISO9660 filesystem support and CDROM support in the
+	  kernel.
+
+	  However, if BR2_TARGET_ROOTFS_INITRAMFS or
+	  BR2_TARGET_ROOTFS_ISO9660_INITRD have been enabled, the
+	  ISO9660 filesystem will only contain a kernel image and
+	  optionally an external initrd image. In this case, the
+	  filesystem being in RAM, it will be read/write. No ISO9660
+	  or CDROM support is needed in the kernel.
+
+if BR2_TARGET_ROOTFS_ISO9660
+
+choice
+	prompt "Bootloader"
+
+config BR2_TARGET_ROOTFS_ISO9660_GRUB
+	bool "grub"
+	depends on BR2_TARGET_GRUB
+	select BR2_TARGET_GRUB_FS_ISO9660
+
+config BR2_TARGET_ROOTFS_ISO9660_GRUB2
+	bool "grub2"
+	depends on BR2_TARGET_GRUB2
+	help
+	  Use Grub 2 as the bootloader for the ISO9660 image. Make
+	  sure to enable the 'iso9660' module in
+	  BR2_TARGET_GRUB2_BUILTIN_MODULES and to use 'cd' as the boot
+	  partition in BR2_TARGET_GRUB2_BOOT_PARTITION=.
+
+config BR2_TARGET_ROOTFS_ISO9660_ISOLINUX
+	bool "isolinux"
+	depends on BR2_TARGET_SYSLINUX_ISOLINUX
+
+endchoice
+
+config BR2_TARGET_ROOTFS_ISO9660_BOOT_MENU
+	string "Boot menu config file"
+	default "fs/iso9660/menu.lst" if BR2_TARGET_ROOTFS_ISO9660_GRUB
+	default "fs/iso9660/grub.cfg" if BR2_TARGET_ROOTFS_ISO9660_GRUB2
+	default "fs/iso9660/isolinux.cfg" if BR2_TARGET_ROOTFS_ISO9660_ISOLINUX
+	help
+	  Use this option to provide a custom bootloader configuration
+	  file (menu.lst for Grub, grub.cfg for Grub 2, isolinux.cfg for
+	  isolinux).
+
+	  Note that the strings __KERNEL_PATH__ and __INITRD_PATH__
+	  will automatically be replaced by the path to the kernel and
+	  initrd images respectively.
+
+config BR2_TARGET_ROOTFS_ISO9660_INITRD
+	bool "Use initrd"
+	default y
+	select BR2_TARGET_ROOTFS_CPIO
+	help
+	  Enable this option to have the root filesystem bundled as an
+	  initrd/initramfs rather than directly as the ISO9660
+	  filesystem. With this option enabled, the ISO9660 will only
+	  contain a kernel image, an initrd image (unless an initramfs
+	  linked into the kernel is used) and the bootloader.
+
+config BR2_TARGET_ROOTFS_ISO9660_HYBRID
+	bool "Build hybrid image"
+	depends on BR2_TARGET_ROOTFS_ISO9660_ISOLINUX
+	help
+	  Enable this option to build an hybrid image, i.e an image
+	  which can either be booted from a CD-ROM or from a device
+	  which BIOS considers a hard disk or ZIP disk, e.g. a USB key
+	  or similar.
+
+endif
+
+comment "iso image needs a Linux kernel and one of grub, grub2 or isolinux to be built"
+	depends on BR2_i386 || BR2_x86_64
+	depends on !BR2_LINUX_KERNEL || \
+		!(BR2_TARGET_GRUB || BR2_TARGET_GRUB2 || BR2_TARGET_SYSLINUX_ISOLINUX)

deprecated/firmware/buildroot/fs/iso9660/grub.cfg

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+set default="0"
+set timeout="10"
+
+menuentry "Buildroot" {
+	linux __KERNEL_PATH__ root=/dev/sr0
+	initrd __INITRD_PATH__
+}

deprecated/firmware/buildroot/fs/iso9660/iso9660.mk

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+################################################################################
+#
+# Build the iso96600 root filesystem image
+#
+################################################################################
+
+#
+# We need to handle three cases:
+#
+#  1. The ISO9660 filesystem will really be the real root filesystem
+#     itself. This is when BR2_TARGET_ROOTFS_ISO9660_INITRD is
+#     disabled.
+#
+#  2. The ISO9660 filesystem will be a filesystem with just a kernel
+#     image, initrd and grub. This is when
+#     BR2_TARGET_ROOTFS_ISO9660_INITRD is enabled, but
+#     BR2_TARGET_ROOTFS_INITRAMFS is disabled.
+#
+#  3. The ISO9660 filesystem will be a filesystem with just a kernel
+#     image and grub. This is like (2), except that the initrd is
+#     built into the kernel image. This is when
+#     BR2_TARGET_ROOTFS_INITRAMFS is enabled (regardless of the value
+#     of BR2_TARGET_ROOTFS_ISO9660_INITRD).
+
+ROOTFS_ISO9660_BOOT_MENU = $(call qstrip,$(BR2_TARGET_ROOTFS_ISO9660_BOOT_MENU))
+
+ROOTFS_ISO9660_DEPENDENCIES = host-cdrkit host-fakeroot linux
+
+ifeq ($(BR2_TARGET_ROOTFS_INITRAMFS),y)
+ROOTFS_ISO9660_USE_INITRD = YES
+endif
+
+ifeq ($(BR2_TARGET_ROOTFS_ISO9660_INITRD),y)
+ROOTFS_ISO9660_USE_INITRD = YES
+endif
+
+ifeq ($(ROOTFS_ISO9660_USE_INITRD),YES)
+ROOTFS_ISO9660_TARGET_DIR = $(BUILD_DIR)/rootfs.iso9660.tmp
+define ROOTFS_ISO9660_CREATE_TEMPDIR
+	$(RM) -rf $(ROOTFS_ISO9660_TARGET_DIR)
+	mkdir -p $(ROOTFS_ISO9660_TARGET_DIR)
+endef
+else
+ROOTFS_ISO9660_TARGET_DIR = $(TARGET_DIR)
+endif
+
+ifeq ($(BR2_TARGET_ROOTFS_ISO9660_GRUB),y)
+ROOTFS_ISO9660_DEPENDENCIES += grub
+ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH = \
+	$(ROOTFS_ISO9660_TARGET_DIR)/boot/grub/menu.lst
+ROOTFS_ISO9660_BOOT_IMAGE = boot/grub/stage2_eltorito
+define ROOTFS_ISO9660_INSTALL_BOOTLOADER
+	$(INSTALL) -D -m 0644 $(GRUB_DIR)/stage2/stage2_eltorito \
+		$(ROOTFS_ISO9660_TARGET_DIR)/boot/grub/stage2_eltorito
+endef
+else ifeq ($(BR2_TARGET_ROOTFS_ISO9660_GRUB2),y)
+ROOTFS_ISO9660_DEPENDENCIES += grub2
+ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH = \
+	$(ROOTFS_ISO9660_TARGET_DIR)/boot/grub/grub.cfg
+ROOTFS_ISO9660_BOOT_IMAGE = boot/grub/grub-eltorito.img
+define ROOTFS_ISO9660_INSTALL_BOOTLOADER
+	$(INSTALL) -D -m 0644 $(BINARIES_DIR)/grub-eltorito.img \
+		$(ROOTFS_ISO9660_TARGET_DIR)/boot/grub/grub-eltorito.img
+endef
+else ifeq ($(BR2_TARGET_ROOTFS_ISO9660_ISOLINUX),y)
+ROOTFS_ISO9660_DEPENDENCIES += syslinux
+ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH = \
+	$(ROOTFS_ISO9660_TARGET_DIR)/isolinux/isolinux.cfg
+ROOTFS_ISO9660_BOOT_IMAGE = isolinux/isolinux.bin
+define ROOTFS_ISO9660_INSTALL_BOOTLOADER
+	$(INSTALL) -D -m 0644 $(BINARIES_DIR)/syslinux/* \
+		$(ROOTFS_ISO9660_TARGET_DIR)/isolinux/
+	$(INSTALL) -D -m 0644 $(HOST_DIR)/usr/share/syslinux/ldlinux.c32 \
+		$(ROOTFS_ISO9660_TARGET_DIR)/isolinux/ldlinux.c32
+endef
+endif
+
+define ROOTFS_ISO9660_PREPARATION
+	$(INSTALL) -D -m 0644 $(ROOTFS_ISO9660_BOOT_MENU) \
+		$(ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH)
+	$(SED) "s%__KERNEL_PATH__%/boot/$(LINUX_IMAGE_NAME)%" \
+		$(ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH)
+	$(ROOTFS_ISO9660_INSTALL_BOOTLOADER)
+endef
+
+ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_PREPARATION
+
+# Grub splash screen disabling
+ifeq ($(BR2_TARGET_ROOTFS_ISO9660_GRUB),y)
+ifeq ($(BR2_TARGET_GRUB_SPLASH),)
+define ROOTFS_ISO9660_DISABLE_SPLASHSCREEN
+	$(SED) '/^splashimage/d' $(ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH)
+endef
+ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_DISABLE_SPLASHSCREEN
+endif
+endif
+
+define ROOTFS_ISO9660_DISABLE_EXTERNAL_INITRD
+	$(SED) '/__INITRD_PATH__/d'  $(ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH)
+endef
+
+ifeq ($(ROOTFS_ISO9660_USE_INITRD),YES)
+
+# Copy Grub splashscreen to temporary filesystem
+ifeq ($(BR2_TARGET_ROOTFS_ISO9660_GRUB),y)
+ifeq ($(BR2_TARGET_GRUB_SPLASH),y)
+define ROOTFS_ISO9660_INSTALL_SPLASHSCREEN
+	$(INSTALL) -D -m 0644 $(TARGET_DIR)/boot/grub/splash.xpm.gz \
+		$(ROOTFS_ISO9660_TARGET_DIR)/boot/grub/splash.xpm.gz
+endef
+ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_INSTALL_SPLASHSCREEN
+endif
+endif
+
+# Copy the kernel to temporary filesystem
+define ROOTFS_ISO9660_COPY_KERNEL
+	$(INSTALL) -D -m 0644 $(LINUX_IMAGE_PATH) \
+		$(ROOTFS_ISO9660_TARGET_DIR)/boot/$(LINUX_IMAGE_NAME)
+endef
+
+ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_COPY_KERNEL
+
+# If initramfs is used, disable loading the initrd as the rootfs is
+# already inside the kernel image. Otherwise, make sure a cpio is
+# generated and use it as the initrd.
+ifeq ($(BR2_TARGET_ROOTFS_INITRAMFS),y)
+ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_DISABLE_EXTERNAL_INITRD
+else
+ROOTFS_ISO9660_DEPENDENCIES += rootfs-cpio
+define ROOTFS_ISO9660_COPY_INITRD
+	$(INSTALL) -D -m 0644 $(BINARIES_DIR)/rootfs.cpio$(ROOTFS_CPIO_COMPRESS_EXT) \
+		$(ROOTFS_ISO9660_TARGET_DIR)/boot/initrd
+	$(SED) "s%__INITRD_PATH__%/boot/initrd%" \
+		$(ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH)
+endef
+ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_COPY_INITRD
+endif
+
+else # ROOTFS_ISO9660_USE_INITRD
+
+ROOTFS_ISO9660_PRE_GEN_HOOKS += ROOTFS_ISO9660_DISABLE_EXTERNAL_INITRD
+
+endif # ROOTFS_ISO9660_USE_INITRD
+
+
+define ROOTFS_ISO9660_CMD
+	$(HOST_DIR)/usr/bin/genisoimage -J -R -b $(ROOTFS_ISO9660_BOOT_IMAGE) \
+		-no-emul-boot -boot-load-size 4 -boot-info-table \
+		-o $@ $(ROOTFS_ISO9660_TARGET_DIR)
+endef
+
+ifeq ($(BR2_TARGET_ROOTFS_ISO9660_HYBRID),y)
+define ROOTFS_ISO9660_GEN_HYBRID
+	$(HOST_DIR)/usr/bin/isohybrid -t 0x96 $@
+endef
+
+ROOTFS_ISO9660_POST_GEN_HOOKS += ROOTFS_ISO9660_GEN_HYBRID
+endif
+
+$(eval $(call ROOTFS_TARGET,iso9660))

deprecated/firmware/buildroot/fs/iso9660/isolinux.cfg

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+default 1
+label 1
+      kernel __KERNEL_PATH__
+      initrd __INITRD_PATH__
+      append root=/dev/sr0

deprecated/firmware/buildroot/fs/iso9660/menu.lst

@@ -0,0 +1,20 @@
+default		0
+timeout		10
+
+# Used when no splashimage is used
+color 		cyan/blue white/blue
+
+# Gets enabled/disabled depending on Grub support for splashimage
+splashimage	/boot/grub/splash.xpm.gz
+
+# Used when a splashimage is enabled
+foreground 	000000
+background 	cccccc
+
+title		Buildroot ISO9660 image
+kernel		__KERNEL_PATH__ root=/dev/sr0
+initrd		__INITRD_PATH__
+
+title		Hard Drive (first partition)
+rootnoverify	(hd0)
+chainloader	+1