From 456be6709443221088ce7ad5f7c91cffe4d4774e Mon Sep 17 00:00:00 2001
From: Julio Montes <julio.montes@intel.com>
Date: Mon, 22 Apr 2019 14:30:38 -0500
Subject: [PATCH] rootfs-builder: fix chrony service

Chrony service is not started because it requires a private temporal directory,
these directories can't be created in read-only filesystems. Create a symlink
to /tmp in /var allowing systemd to create private temporal directories.

fixes #280

Signed-off-by: Julio Montes <julio.montes@intel.com>
---
 rootfs-builder/rootfs.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/rootfs-builder/rootfs.sh b/rootfs-builder/rootfs.sh
index 000ba5f98..7e8baa693 100755
--- a/rootfs-builder/rootfs.sh
+++ b/rootfs-builder/rootfs.sh
@@ -381,6 +381,10 @@ pushd "${ROOTFS_DIR}" >> /dev/null
 if [ "$PWD" != "/" ] ; then
 	rm -rf ./var/cache/ ./var/lib ./var/log
 fi
+
+info "Create symlink to /tmp in /var to create private temporal directories with systemd"
+rm -rf ./var/tmp
+ln -s ../tmp ./var/
 popd  >> /dev/null
 
 [ -n "${KERNEL_MODULES_DIR}" ] && copy_kernel_modules ${KERNEL_MODULES_DIR} ${ROOTFS_DIR}