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fs/iso9660: add hybrid image support

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This commit adds a new option, which allows, when isolinux is used as
the bootloader, to generate an "hybrid" ISO image. Such images can
either be booted from CD-ROM or from USB keys. It simply uses the
isohybrid tool provided by syslinux.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
This commit is contained in:
Thomas Petazzoni 2015-06-09 00:21:46 +02:00
parent f9ac784ee6
commit 5bac06e881
2 changed files with 17 additions and 0 deletions
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9
fs/iso9660/Config.in
View File

@ -58,6 +58,15 @@ config BR2_TARGET_ROOTFS_ISO9660_INITRD
contain a kernel image, an initrd image (unless an initramfs contain a kernel image, an initrd image (unless an initramfs
linked into the kernel is used) and the bootloader. 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 endif
comment "iso image needs a Linux kernel and one of grub or isolinux to be built" comment "iso image needs a Linux kernel and one of grub or isolinux to be built"

8
fs/iso9660/iso9660.mk
View File

@ -140,4 +140,12 @@ define ROOTFS_ISO9660_CMD
-o $@ $(ROOTFS_ISO9660_TARGET_DIR) -o $@ $(ROOTFS_ISO9660_TARGET_DIR)
endef endef
ifeq ($(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)) $(eval $(call ROOTFS_TARGET,iso9660))