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x86_64: initial support for PARTUUID

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This change configures grub to mount the rootfs by PARTUUID instead of the
device path if CONFIG_TARGET_ROOTFS_PARTNAME is unset.

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

SVN-Revision: 42936
This commit is contained in:
Jo-Philipp Wich 2014-10-16 16:28:16 +00:00
parent cc97eaff10
commit 299c8c3291
2 changed files with 4 additions and 2 deletions
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4
target/linux/x86_64/image/Makefile
View File

@ -40,7 +40,9 @@ ifneq ($(GRUB_TERMINALS),)
GRUB_TERMINAL_CONFIG := terminal_input $(GRUB_TERMINALS); terminal_output $(GRUB_TERMINALS) GRUB_TERMINAL_CONFIG := terminal_input $(GRUB_TERMINALS); terminal_output $(GRUB_TERMINALS)
endif endif
SIGNATURE:=$(shell dd if=/dev/urandom bs=4 count=1 2>/dev/null | hexdump -v -e '"%02x"')
ROOTPART:=$(call qstrip,$(CONFIG_TARGET_ROOTFS_PARTNAME)) ROOTPART:=$(call qstrip,$(CONFIG_TARGET_ROOTFS_PARTNAME))
ROOTPART:=$(if $(ROOTPART),$(ROOTPART),PARTUUID=$(SIGNATURE)-02)
GRUB_TIMEOUT:=$(call qstrip,$(CONFIG_GRUB_TIMEOUT)) GRUB_TIMEOUT:=$(call qstrip,$(CONFIG_GRUB_TIMEOUT))
@ -82,7 +84,7 @@ ifneq ($(CONFIG_GRUB_IMAGES),)
-e 's#@CMDLINE@#$(strip $(call Image/cmdline/$(1)) $(BOOTOPTS) $(GRUB_CONSOLE_CMDLINE))#g' \ -e 's#@CMDLINE@#$(strip $(call Image/cmdline/$(1)) $(BOOTOPTS) $(GRUB_CONSOLE_CMDLINE))#g' \
-e 's#@TIMEOUT@#$(GRUB_TIMEOUT)#g' \ -e 's#@TIMEOUT@#$(GRUB_TIMEOUT)#g' \
./grub.cfg > $(KDIR)/root.grub/boot/grub/grub.cfg ./grub.cfg > $(KDIR)/root.grub/boot/grub/grub.cfg
PADDING="$(CONFIG_TARGET_IMAGES_PAD)" PATH="$(TARGET_PATH)" ./gen_image_generic.sh \ PADDING="$(CONFIG_TARGET_IMAGES_PAD)" SIGNATURE="$(SIGNATURE)" PATH="$(TARGET_PATH)" ./gen_image_generic.sh \
$(BIN_DIR)/$(IMG_PREFIX)-combined-$(1).img \ $(BIN_DIR)/$(IMG_PREFIX)-combined-$(1).img \
$(CONFIG_TARGET_KERNEL_PARTSIZE) $(KDIR)/root.grub \ $(CONFIG_TARGET_KERNEL_PARTSIZE) $(KDIR)/root.grub \
$(CONFIG_TARGET_ROOTFS_PARTSIZE) $(KDIR)/root.$(1) \ $(CONFIG_TARGET_ROOTFS_PARTSIZE) $(KDIR)/root.$(1) \

2
target/linux/x86_64/image/gen_image_generic.sh
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@ -20,7 +20,7 @@ sect=63
cyl=$(( ($KERNELSIZE + $ROOTFSSIZE) * 1024 * 1024 / ($head * $sect * 512))) cyl=$(( ($KERNELSIZE + $ROOTFSSIZE) * 1024 * 1024 / ($head * $sect * 512)))
# create partition table # create partition table
set `ptgen -o "$OUTPUT" -h $head -s $sect -p ${KERNELSIZE}m -p ${ROOTFSSIZE}m ${ALIGN:+-l $ALIGN}` set `ptgen -o "$OUTPUT" -h $head -s $sect -p ${KERNELSIZE}m -p ${ROOTFSSIZE}m ${ALIGN:+-l $ALIGN} ${SIGNATURE:+-S 0x$SIGNATURE}`
KERNELOFFSET="$(($1 / 512))" KERNELOFFSET="$(($1 / 512))"
KERNELSIZE="$(($2 / 512))" KERNELSIZE="$(($2 / 512))"