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x86: stop relying on hexdump for image build signature

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Use perl to generate random number instead.
See https://github.com/freifunk-gluon/gluon/issues/811

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2016-07-03 18:39:08 +02:00
parent f226d5879e
commit d5ee23ee27
1 changed files with 1 additions and 1 deletions
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2
target/linux/x86/image/Makefile
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@ -40,7 +40,7 @@ ifneq ($(GRUB_TERMINALS),)
GRUB_TERMINAL_CONFIG := terminal_input $(GRUB_TERMINALS); terminal_output $(GRUB_TERMINALS)
endif
SIGNATURE:=$(shell dd if=/dev/urandom bs=4 count=1 2>/dev/null | hexdump -v -e '"%08x"')
SIGNATURE:=$(shell perl -e 'printf("%08x", rand(0xFFFFFFFF))')
ROOTPART:=$(call qstrip,$(CONFIG_TARGET_ROOTFS_PARTNAME))
ROOTPART:=$(if $(ROOTPART),$(ROOTPART),PARTUUID=$(SIGNATURE)-02)