[OE-core] [PATCH 1/1] init-install: Fixes the install script failing when not finding any mmcblk devices

[Alejandro Hernandez]

The init-install.sh and init-install-efi.sh scripts perform a check
to see which devices are available on a booted system for installation.

Recently, the way we check for these devices changed on 993bfb,
greping for devices found on /sys/block/, this change caused the installer
to fail (at least) when not finding any mmcblk devices, due to the fact
that we call sh -e to execute this script, so any command (grep)
or pipeline exiting with a non-zero status causes the whole script to exit

This patch throws in a harmless true exit status at the end of the pipeline(s)
of the grep commands to avoid the installer script from exiting, fixing the issue.

[YOCTO #10189]

Signed-off-by: Alejandro Hernandez <alejandro.hernandez at linux.intel.com>
---
 meta/recipes-core/initrdscripts/files/init-install-efi.sh | 4 ++--
 meta/recipes-core/initrdscripts/files/init-install.sh     | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/meta/recipes-core/initrdscripts/files/init-install-efi.sh b/meta/recipes-core/initrdscripts/files/init-install-efi.sh
index 2d20a6d..441e252 100644
--- a/meta/recipes-core/initrdscripts/files/init-install-efi.sh
+++ b/meta/recipes-core/initrdscripts/files/init-install-efi.sh
@@ -31,8 +31,8 @@ echo "Searching for hard drives ..."
 
 # Some eMMC devices have special sub devices such as mmcblk0boot0 etc
 # we're currently only interested in the root device so pick them wisely
-devices=`ls /sys/block/ | grep -v mmcblk`
-mmc_devices=`ls /sys/block/ | grep "mmcblk[0-9]\{1,\}$"`
+devices=`ls /sys/block/ | grep -v mmcblk` || true
+mmc_devices=`ls /sys/block/ | grep "mmcblk[0-9]\{1,\}$"` || true
 devices="$devices $mmc_devices"
 
 for device in $devices; do
diff --git a/meta/recipes-core/initrdscripts/files/init-install.sh b/meta/recipes-core/initrdscripts/files/init-install.sh
index 89d5a5d..04ce5fb 100644
--- a/meta/recipes-core/initrdscripts/files/init-install.sh
+++ b/meta/recipes-core/initrdscripts/files/init-install.sh
@@ -30,8 +30,8 @@ echo "Searching for hard drives ..."
 
 # Some eMMC devices have special sub devices such as mmcblk0boot0 etc
 # we're currently only interested in the root device so pick them wisely
-devices=`ls /sys/block/ | grep -v mmcblk`
-mmc_devices=`ls /sys/block/ | grep "mmcblk[0-9]\{1,\}$"`
+devices=`ls /sys/block/ | grep -v mmcblk` || true
+mmc_devices=`ls /sys/block/ | grep "mmcblk[0-9]\{1,\}$"` || true
 devices="$devices $mmc_devices"
 
 for device in $devices; do
-- 
2.6.6