From a821499e679a2d76c96ea6fda76e7847ba57a565 Mon Sep 17 00:00:00 2001

From: Lennart Poettering <lennart@poettering.net>

Date: Mon, 7 Jul 2014 11:47:46 +0200

Subject: [PATCH] main: explain our /etc empty check a bit in a comment

(cherry picked from commit 3408ba015aee3a88c91962c028738be757779519)

---

 src/core/main.c | 8 ++++++++

 1 file changed, 8 insertions(+)

diff --git a/src/core/main.c b/src/core/main.c

index 1ca899998e..a732c6945a 100644

--- a/src/core/main.c

+++ b/src/core/main.c

@@ -1543,6 +1543,14 @@ int main(int argc, char *argv[]) {

                 if (in_initrd())

                         log_info("Running in initial RAM disk.");

+                /* Let's check whether /etc is already populated. We

+                 * don't actually really check for that, but use

+                 * /etc/machine-id as flag file. This allows container

+                 * managers and installers to provision a couple of

+                 * files already. If the container manager wants to

+                 * provision the machine ID itself it should pass

+                 * $container_uuid to PID 1.*/

+

                 empty_etc = access("/etc/machine-id", F_OK) < 0;

                 if (empty_etc)

                         log_info("Running with unpopulated /etc.");