From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 7 Jul 2014 09:47:46 +0000 (+0200)
Subject: main: explain our /etc empty check a bit in a comment
X-Git-Tag: v216~746
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=3408ba015aee3a88c91962c028738be757779519

main: explain our /etc empty check a bit in a comment
---

diff --git a/src/core/main.c b/src/core/main.c
index 1ca899998..a732c6945 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.");