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uboot-envtools: check for config prior to append

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In the rare event a pre-populated fw_env.config exists in the rootfs prior
to firstboot, calling fw_setenv after the system has initialised will
annihilate the devices environment due to two identical lines in
fw_env.config.

Check for existence prior to blind appendage.

Signed-off-by: Imran Khan <gururug@gmail.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
[daniel@makrotopia.org: fixed patch format, improved grep, cosmetics]
This commit is contained in:
Imran Khan 2019-12-17 05:59:28 -08:00 committed by Daniel Golle
parent f45a16dead
commit 27d69d2561
2 changed files with 2 additions and 2 deletions
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2
package/boot/uboot-envtools/Makefile
View File

@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk
PKG_NAME:=uboot-envtools
PKG_DISTNAME:=u-boot
PKG_VERSION:=2019.07
PKG_RELEASE:=1
PKG_RELEASE:=2
PKG_SOURCE_PROTO:=git
PKG_SOURCE:=$(PKG_DISTNAME)-$(PKG_VERSION).tar.xz

2
package/boot/uboot-envtools/files/uboot-envtools.sh
View File

@ -31,6 +31,6 @@ ubootenv_add_app_config() {
config_get envsize "$1" envsize
config_get secsize "$1" secsize
config_get numsec "$1" numsec
echo "$dev $offset $envsize $secsize $numsec" >>/etc/fw_env.config
grep -q "^[[:space:]]*${dev}[[:space:]]*${offset}" /etc/fw_env.config || echo "$dev $offset $envsize $secsize $numsec" >>/etc/fw_env.config
}