kumquat-buildroot/fs/ext2/ext2.mk
Sébastien Szymanski c6bca8cef0 fs/ext2: Remove support for auto-calculation of rootfs size
Auto-calculation of the rootfs size cannot be done in a reliable way
as it depends on the host filesystem and is broken on non ext4 host
(see bugs [1] [2]). So let the user specify the size he wants for his
rootfs.

[1] https://bugs.busybox.net/show_bug.cgi?id=8831
[2] https://bugs.busybox.net/show_bug.cgi?id=9496

Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[Thomas: as suggested by Arnout, use 60 MB as the default size instead
of 64 MB.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-03-25 14:41:05 +01:00

45 lines
1.3 KiB
Makefile

################################################################################
#
# Build the ext2 root filesystem image
#
################################################################################
EXT2_OPTS = -G $(BR2_TARGET_ROOTFS_EXT2_GEN) -R $(BR2_TARGET_ROOTFS_EXT2_REV)
ifneq ($(strip $(BR2_TARGET_ROOTFS_EXT2_BLOCKS)),0)
EXT2_OPTS += -b $(BR2_TARGET_ROOTFS_EXT2_BLOCKS)
endif
ifneq ($(strip $(BR2_TARGET_ROOTFS_EXT2_INODES)),0)
EXT2_OPTS += -i $(BR2_TARGET_ROOTFS_EXT2_INODES)
endif
EXT2_OPTS += -I $(BR2_TARGET_ROOTFS_EXT2_EXTRA_INODES)
ifneq ($(strip $(BR2_TARGET_ROOTFS_EXT2_RESBLKS)),0)
EXT2_OPTS += -r $(BR2_TARGET_ROOTFS_EXT2_RESBLKS)
endif
# qstrip results in stripping consecutive spaces into a single one. So the
# variable is not qstrip-ed to preserve the integrity of the string value.
EXT2_LABEL := $(subst ",,$(BR2_TARGET_ROOTFS_EXT2_LABEL))
ifneq ($(EXT2_LABEL),)
EXT2_OPTS += -l "$(EXT2_LABEL)"
endif
ROOTFS_EXT2_DEPENDENCIES = host-mke2img
define ROOTFS_EXT2_CMD
PATH=$(BR_PATH) mke2img -d $(TARGET_DIR) $(EXT2_OPTS) -o $@
endef
rootfs-ext2-symlink:
ln -sf rootfs.ext2$(ROOTFS_EXT2_COMPRESS_EXT) $(BINARIES_DIR)/rootfs.ext$(BR2_TARGET_ROOTFS_EXT2_GEN)$(ROOTFS_EXT2_COMPRESS_EXT)
.PHONY: rootfs-ext2-symlink
ifneq ($(BR2_TARGET_ROOTFS_EXT2_GEN),2)
ROOTFS_EXT2_POST_TARGETS += rootfs-ext2-symlink
endif
$(eval $(call ROOTFS_TARGET,ext2))