From 1b8bdd05fcecd83cc8c8269f06a50ced055ab864 Mon Sep 17 00:00:00 2001

From: Franck Bui <fbui@suse.com>

Date: Tue, 1 Dec 2015 18:01:44 +0100

Subject: [PATCH] fstab-generator: fix automount option and don't start

 associated mount unit at boot

Without this patch applied the mount unit with 'automount' option was still

pulled by local-fs.target and thus was activated during the boot process which

defeats the purpose of the 'automount' option:

   $ grep /mnt /etc/fstab

   /dev/vdb1 /mnt ext2 defaults,x-systemd.automount 0 0

   $ reboot

   ...

   $ mount | grep mnt

   systemd-1 on /mnt type autofs (rw,relatime,fd=34,pgrp=1,timeout=0,minproto=5,maxproto=5,direct)

   /dev/vdb1 on /mnt type ext2 (rw,relatime)

   $ systemctl status mnt.mount | grep Active

      Active: active (mounted) since Thu 2016-03-03 21:36:22 CET; 42s ago

With the patch applied:

   $ reboot

   ...

   $ mount | grep mnt

   systemd-1 on /mnt type autofs (rw,relatime,fd=22,pgrp=1,timeout=0,minproto=5,maxproto=5,direct)

   $ systemctl status mnt.mount | grep Active

      Active: inactive (dead)

   $ ls /mnt

   lost+found

   $ systemctl status mnt.mount | grep Active

      Active: active (mounted) since Thu 2016-03-03 21:47:32 CET; 4s ago

(cherry picked from commit 2b14df4a9ae92623b584e61db6b5b37accd832c1)

---

 src/core/mount.c                      | 11 ++++++++++-

 src/fstab-generator/fstab-generator.c |  4 ++--

 2 files changed, 12 insertions(+), 3 deletions(-)

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

index de1075d3a0..cfe4b0f517 100644

--- a/src/core/mount.c

+++ b/src/core/mount.c

@@ -104,6 +104,14 @@ static bool mount_is_auto(const MountParameters *p) {

         return !fstab_test_option(p->options, "noauto\0");

 }

+static bool mount_is_automount(const MountParameters *p) {

+        assert(p);

+

+        return fstab_test_option(p->options,

+                                 "comment=systemd.automount\0"

+                                 "x-systemd.automount\0");

+}

+

 static bool needs_quota(const MountParameters *p) {

         assert(p);

@@ -328,7 +336,8 @@ static int mount_add_device_links(Mount *m) {

         if (path_equal(m->where, "/"))

                 return 0;

-        if (mount_is_auto(p) && UNIT(m)->manager->running_as == MANAGER_SYSTEM)

+        if (mount_is_auto(p) && !mount_is_automount(p) &&

+            UNIT(m)->manager->running_as == MANAGER_SYSTEM)

                 device_wants_mount = true;

         r = unit_add_node_link(UNIT(m), p->what, device_wants_mount, m->from_fragment ? UNIT_BINDS_TO : UNIT_REQUIRES);

diff --git a/src/fstab-generator/fstab-generator.c b/src/fstab-generator/fstab-generator.c

index 97a48764ae..6f576b5ecf 100644

--- a/src/fstab-generator/fstab-generator.c

+++ b/src/fstab-generator/fstab-generator.c

@@ -336,8 +336,8 @@ static int add_mount(

         if (r < 0)

                 return log_error_errno(r, "Failed to write unit file %s: %m", unit);

-        if (!noauto) {

-                lnk = strjoin(arg_dest, "/", post, nofail || automount ? ".wants/" : ".requires/", name, NULL);

+        if (!noauto && !automount) {

+                lnk = strjoin(arg_dest, "/", post, nofail ? ".wants/" : ".requires/", name, NULL);

                 if (!lnk)

                         return log_oom();