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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)
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