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image: ensure that /dev/console exist in rootfs images

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Linux expects that the /dev/console node is present in
the rootfs image. Create the node in rootfs images, in
order to make std{in,out,err} usable even in early init
process.

Note: tar.gz and cpio.gz images are not handled yet.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 37847
This commit is contained in:
Gabor Juhos 2013-08-27 12:02:58 +00:00
parent 012f214e6f
commit fd0325324f
2 changed files with 13 additions and 3 deletions
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5
include/device_table.txt Normal file
View File

@ -0,0 +1,5 @@
# minimal device table file for OpenWrt
#<name> <type> <mode> <uid> <gid> <major> <minor> <start> <inc> <count>
/dev d 755 0 0 - - - - -
/dev/console c 600 0 0 5 1 0 0 -

11
include/image.mk
View File

@ -17,6 +17,8 @@ KDIR=$(KERNEL_BUILD_DIR)
IMG_PREFIX:=openwrt-$(BOARD)$(if $(SUBTARGET),-$(SUBTARGET)) IMG_PREFIX:=openwrt-$(BOARD)$(if $(SUBTARGET),-$(SUBTARGET))
MKFS_DEVTABLE_OPT := -D $(INCLUDE_DIR)/device_table.txt
ifneq ($(CONFIG_BIG_ENDIAN),) ifneq ($(CONFIG_BIG_ENDIAN),)
JFFS2OPTS := --pad --big-endian --squash-uids -v JFFS2OPTS := --pad --big-endian --squash-uids -v
else else
@ -26,7 +28,7 @@ endif
ifeq ($(CONFIG_JFFS2_RTIME),y) ifeq ($(CONFIG_JFFS2_RTIME),y)
JFFS2OPTS += -X rtime JFFS2OPTS += -X rtime
endif endif
ifeq ($(CONFIG_JFFS2_ZLIB),y) ifeq ($(CONFIG_JFFS2_ZLIB),y)
JFFS2OPTS += -X zlib JFFS2OPTS += -X zlib
endif endif
ifeq ($(CONFIG_JFFS2_LZMA),y) ifeq ($(CONFIG_JFFS2_LZMA),y)
@ -42,8 +44,11 @@ ifneq ($(CONFIG_JFFS2_LZMA),y)
JFFS2OPTS += -x lzma JFFS2OPTS += -x lzma
endif endif
JFFS2OPTS += $(MKFS_DEVTABLE_OPT)
SQUASHFS_BLOCKSIZE := 256k SQUASHFS_BLOCKSIZE := 256k
SQUASHFSOPT := -b $(SQUASHFS_BLOCKSIZE) SQUASHFSOPT := -b $(SQUASHFS_BLOCKSIZE)
SQUASHFSOPT += -p '/dev d 755 0 0' -p '/dev/console c 600 0 0 5 1'
SQUASHFSCOMP := gzip SQUASHFSCOMP := gzip
LZMA_XZ_OPTIONS := -Xpreset 9 -Xe -Xlc 0 -Xlp 2 -Xpb 2 LZMA_XZ_OPTIONS := -Xpreset 9 -Xe -Xlc 0 -Xlp 2 -Xpb 2
ifeq ($(CONFIG_SQUASHFS_LZMA),y) ifeq ($(CONFIG_SQUASHFS_LZMA),y)
@ -110,7 +115,7 @@ endif
ifneq ($(CONFIG_TARGET_ROOTFS_UBIFS),) ifneq ($(CONFIG_TARGET_ROOTFS_UBIFS),)
define Image/mkfs/ubifs define Image/mkfs/ubifs
$(CP) ./ubinize.cfg $(KDIR) $(CP) ./ubinize.cfg $(KDIR)
$(STAGING_DIR_HOST)/bin/mkfs.ubifs $(UBIFS_OPTS) -o $(KDIR)/root.ubifs -d $(TARGET_DIR) $(STAGING_DIR_HOST)/bin/mkfs.ubifs $(UBIFS_OPTS) $(MKFS_DEVTABLE_OPT) -o $(KDIR)/root.ubifs -d $(TARGET_DIR)
$(call Image/Build,ubifs) $(call Image/Build,ubifs)
(cd $(KDIR); \ (cd $(KDIR); \
$(STAGING_DIR_HOST)/bin/ubinize $(UBINIZE_OPTS) -o $(KDIR)/root.ubi ubinize.cfg) $(STAGING_DIR_HOST)/bin/ubinize $(UBINIZE_OPTS) -o $(KDIR)/root.ubi ubinize.cfg)
@ -136,7 +141,7 @@ ifneq ($(CONFIG_TARGET_ROOTFS_EXT4FS),)
define Image/mkfs/ext4 define Image/mkfs/ext4
# generate an ext2 fs # 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) $(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)
# convert it to ext4 # convert it to ext4
$(STAGING_DIR_HOST)/bin/tune2fs -O extents,uninit_bg,dir_index $(KDIR)/root.ext4 $(STAGING_DIR_HOST)/bin/tune2fs -O extents,uninit_bg,dir_index $(KDIR)/root.ext4
# fix it up # fix it up