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image: ext4: allow to choose a block size for the rootfs

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Signed-off-by: Michael Heimpold <mhei@heimpold.de>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40924 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
John Crispin
2014-06-02 12:44:04 +00:00
parent b611a556d9
commit 6c2dc17952
2 changed files with 26 additions and 2 deletions
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4
include/image.mk
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@@ -184,11 +184,11 @@ ifneq ($(CONFIG_TARGET_ROOTFS_TARGZ),)
endif
ifneq ($(CONFIG_TARGET_ROOTFS_EXT4FS),)
E2SIZE=$(shell echo $$(($(CONFIG_TARGET_ROOTFS_PARTSIZE)*1024)))
E2SIZE=$(shell echo $$(($(CONFIG_TARGET_ROOTFS_PARTSIZE)*1024*1024/$(CONFIG_TARGET_EXT4_BLOCKSIZE))))
define Image/mkfs/ext4
# generate an ext2 fs
$(STAGING_DIR_HOST)/bin/genext2fs -U -b $(E2SIZE) -N $(CONFIG_TARGET_ROOTFS_MAXINODE) -d $(TARGET_DIR)/ $(KDIR)/root.ext4 -m $(CONFIG_TARGET_ROOTFS_RESERVED_PCT) $(MKFS_DEVTABLE_OPT)
$(STAGING_DIR_HOST)/bin/genext2fs -U -B $(CONFIG_TARGET_EXT4_BLOCKSIZE) -b $(E2SIZE) -N $(CONFIG_TARGET_ROOTFS_MAXINODE) -d $(TARGET_DIR)/ $(KDIR)/root.ext4 -m $(CONFIG_TARGET_ROOTFS_RESERVED_PCT) $(MKFS_DEVTABLE_OPT)
# convert it to ext4
$(STAGING_DIR_HOST)/bin/tune2fs -O extents,uninit_bg,dir_index $(KDIR)/root.ext4
# fix it up