From: Jo-Philipp Wich <jow@openwrt.org>
Date: Tue, 24 Mar 2015 10:06:40 +0000 (+0000)
Subject: x86_64: fix PARTUUID format with leading zeros
X-Git-Tag: reboot~3778
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=d830d34b000551a2c288d09dbfeaa8010f22d372;p=openwrt%2Fstaging%2Fblogic.git

x86_64: fix PARTUUID format with leading zeros

Otherwise the root device won't be found in 1/16 of the generated images
(whenever the signature starts with a zero digit).

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>

SVN-Revision: 44959
---

diff --git a/target/linux/x86_64/image/Makefile b/target/linux/x86_64/image/Makefile
index e8d9ac11587d..cd80bb1de8f9 100644
--- a/target/linux/x86_64/image/Makefile
+++ b/target/linux/x86_64/image/Makefile
@@ -40,7 +40,7 @@ ifneq ($(GRUB_TERMINALS),)
   GRUB_TERMINAL_CONFIG := terminal_input $(GRUB_TERMINALS); terminal_output $(GRUB_TERMINALS)
 endif
 
-SIGNATURE:=$(shell dd if=/dev/urandom bs=4 count=1 2>/dev/null | hexdump -v -e '"%02x"')
+SIGNATURE:=$(shell dd if=/dev/urandom bs=4 count=1 2>/dev/null | hexdump -v -e '"%08x"')
 ROOTPART:=$(call qstrip,$(CONFIG_TARGET_ROOTFS_PARTNAME))
 ROOTPART:=$(if $(ROOTPART),$(ROOTPART),PARTUUID=$(SIGNATURE)-02)