From 80645c689418f13d6fbe60e8c87ca16787705687 Mon Sep 17 00:00:00 2001
From: Cole Robinson <crobinso@redhat.com>
Date: Wed, 4 Mar 2020 17:56:03 -0500
Subject: [PATCH] rootfs: Don't overwrite /init if it already exists

Signed-off-by: Cole Robinson <crobinso@redhat.com>
---
 rootfs-builder/rootfs.sh | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/rootfs-builder/rootfs.sh b/rootfs-builder/rootfs.sh
index 5a5655e..554ed67 100755
--- a/rootfs-builder/rootfs.sh
+++ b/rootfs-builder/rootfs.sh
@@ -455,9 +455,15 @@ prepare_overlay()
 {
 	pushd "${ROOTFS_DIR}" > /dev/null
 	mkdir -p ./etc ./lib/systemd ./sbin ./var
-	ln -sf  ./usr/lib/systemd/systemd ./init
-	ln -sf  ../../init ./lib/systemd/systemd
-	ln -sf  ../init ./sbin/init
+	if [ ! -e ./init ]; then
+		# This symlink hacking is mostly to make later rootfs
+		# validation work correctly for the dracut case.
+		# We skip this if /init exists in the rootfs, meaning
+		# we were passed a pre-populated rootfs directory
+		ln -sf  ./usr/lib/systemd/systemd ./init
+		ln -sf  ../../init ./lib/systemd/systemd
+		ln -sf  ../init ./sbin/init
+	fi
 	# Kata sytemd unit file
 	mkdir -p ./etc/systemd/system/basic.target.wants/
 	ln -sf /usr/lib/systemd/system/kata-containers.target ./etc/systemd/system/basic.target.wants/kata-containers.target