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iso9660 fs: use cpio initrd instead of ext2 

The ext2 initrd is pretty broken, because it requires an additional
root=/dev/ram0 command line parameter, and a /init to mount
devtmps that isn't there in out ext2 rootfs.  So just use a cpio
instead.

Note that there is no check if the kernel supports initramfs or the
selected compression method.

Also removed a bit of dead code in iso9660.mk.

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This commit is contained in:
Arnout Vandecappelle 2012-11-09 13:54:09 +00:00 committed by Peter Korsgaard
parent bac970e99d
commit ff3391323a
2 changed files with 6 additions and 7 deletions
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2
fs/iso9660/Config.in
View File

@ -2,7 +2,7 @@ config BR2_TARGET_ROOTFS_ISO9660
bool "iso image"
depends on (BR2_i386 || BR2_x86_64)
depends on BR2_LINUX_KERNEL
select BR2_TARGET_ROOTFS_EXT2
select BR2_TARGET_ROOTFS_CPIO
select BR2_TARGET_GRUB
help
Build a bootable iso9660 image

11
fs/iso9660/iso9660.mk
View File

@ -9,20 +9,19 @@
ISO9660_TARGET_DIR=$(BUILD_DIR)/iso9660
ISO9660_BOOT_MENU:=$(call qstrip,$(BR2_TARGET_ROOTFS_ISO9660_BOOT_MENU))
ISO9660_OPTS:=
ifeq ($(BR2_TARGET_ROOTFS_ISO9660_SQUASH),y)
ISO9660_OPTS+=-U
endif
ISO9660_CPIO_EXT-$(BR2_TARGET_ROOTFS_CPIO_GZIP) = .gz
ISO9660_CPIO_EXT-$(BR2_TARGET_ROOTFS_CPIO_BZIP2) = .bz2
ISO9660_CPIO_EXT-$(BR2_TARGET_ROOTFS_CPIO_LZMA) = .lzma
$(BINARIES_DIR)/rootfs.iso9660: host-cdrkit host-fakeroot linux rootfs-ext2 grub
$(BINARIES_DIR)/rootfs.iso9660: host-cdrkit host-fakeroot linux rootfs-cpio grub
@$(call MESSAGE,"Generating root filesystem image rootfs.iso9660")
mkdir -p $(ISO9660_TARGET_DIR)
mkdir -p $(ISO9660_TARGET_DIR)/boot/grub
cp $(GRUB_DIR)/stage2/stage2_eltorito $(ISO9660_TARGET_DIR)/boot/grub/
cp $(ISO9660_BOOT_MENU) $(ISO9660_TARGET_DIR)/boot/grub/menu.lst
cp $(LINUX_IMAGE_PATH) $(ISO9660_TARGET_DIR)/kernel
cp $(BINARIES_DIR)/rootfs.ext2 $(ISO9660_TARGET_DIR)/initrd
cp $(BINARIES_DIR)/rootfs.cpio$(ISO9660_CPIO_EXT-y) $(ISO9660_TARGET_DIR)/initrd
# Use fakeroot to pretend all target binaries are owned by root
rm -f $(FAKEROOT_SCRIPT)
echo "chown -R 0:0 $(ISO9660_TARGET_DIR)" >> $(FAKEROOT_SCRIPT)