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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_GRUB2_I386_PC || \
- 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_GRUB2
- bool "grub2"
- depends on BR2_TARGET_GRUB2_I386_PC
- 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/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 (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_TRANSPARENT_COMPRESSION
- bool "transparent compression"
- depends on !BR2_TARGET_ROOTFS_ISO9660_INITRD
- depends on !BR2_TARGET_ROOTFS_INITRAMFS
- help
- Say 'y' to enable use of transparent (de)compression. Files
- are stored compressed and will be decompressed on-the-fly
- upon access at runtime.
- 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 either grub2 i386-pc or isolinux to be built"
- depends on BR2_i386 || BR2_x86_64
- depends on !BR2_LINUX_KERNEL || \
- !(BR2_TARGET_GRUB2_I386_PC || BR2_TARGET_SYSLINUX_ISOLINUX)
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