files: overlayfs-etc: refactor preinit template

(From OE-Core rev: ad5b2bffbee6ddcf51bc146d1e76c980b498b399)

Signed-off-by: Vyacheslav Yurkov <v.yurkov@precitec.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 9 insertions, 5 deletions

diff --git a/meta/files/overlayfs-etc-preinit.sh.in b/meta/files/overlayfs-etc-preinit.sh.in
index 43c9b04eb9..0e80849f12 100644
--- a/meta/files/overlayfs-etc-preinit.sh.in
+++ b/meta/files/overlayfs-etc-preinit.sh.in
@@ -15,19 +15,23 @@ mount -t sysfs sysfs /sys
 
 [ -z "$CONSOLE" ] && CONSOLE="/dev/console"
 
+BASE_OVERLAY_ETC_DIR={OVERLAYFS_ETC_MOUNT_POINT}/overlay-etc
+UPPER_DIR=$BASE_OVERLAY_ETC_DIR/upper
+WORK_DIR=$BASE_OVERLAY_ETC_DIR/work
+
 mkdir -p {OVERLAYFS_ETC_MOUNT_POINT}
 if mount -n -t {OVERLAYFS_ETC_FSTYPE} \
     -o {OVERLAYFS_ETC_MOUNT_OPTIONS} \
     {OVERLAYFS_ETC_DEVICE} {OVERLAYFS_ETC_MOUNT_POINT}
 then
-    mkdir -p {OVERLAYFS_ETC_MOUNT_POINT}/overlay-etc/upper
-    mkdir -p {OVERLAYFS_ETC_MOUNT_POINT}/overlay-etc/work
+    mkdir -p $UPPER_DIR
+    mkdir -p $WORK_DIR
     mount -n -t overlay \
-        -o upperdir={OVERLAYFS_ETC_MOUNT_POINT}/overlay-etc/upper \
+        -o upperdir=$UPPER_DIR \
         -o lowerdir=/etc \
-        -o workdir={OVERLAYFS_ETC_MOUNT_POINT}/overlay-etc/work \
+        -o workdir=$WORK_DIR \
         -o index=off,xino=off,redirect_dir=off,metacopy=off \
-        {OVERLAYFS_ETC_MOUNT_POINT}/overlay-etc/upper /etc || \
+        $UPPER_DIR /etc || \
             echo "PREINIT: Mounting etc-overlay failed!"
 else
     echo "PREINIT: Mounting </data> failed!"