[systemd-devel] [PATCH] Re: fstab mounts get unmounted during boot (.device unit bouncing?) -- solution

[Karel Zak]

On Thu, Feb 12, 2015 at 10:40:15AM +0100, Martin Pitt wrote:
> So explicitly specify the file that we actually want to parse.
> 
> [1] first boot after a distro upgrade, or a package bug, or administrators
>     configuring it explicitly for some reason
> 
> https://launchpad.net/bugs/1419623
> ---
>  src/core/mount.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/src/core/mount.c b/src/core/mount.c
> index f3977e6..61fd526 100644
> --- a/src/core/mount.c
> +++ b/src/core/mount.c
> @@ -1566,7 +1566,7 @@ static int mount_load_proc_self_mountinfo(Manager *m, bool set_flags) {
>          if (!tb || !itr)
>                  return log_oom();
>  
> -        r = mnt_table_parse_mtab(tb, NULL);
> +        r = mnt_table_parse_mtab(tb, "/proc/self/mountinfo");


This is bad solution. It resolves the issue, but forces libmount to
not read /run/mount/utab.

It would be better to ignore this problem for now, I'll very probably
add a new build-system option to disable libmount mtab parsing at all.
The heuristic which libmount uses to decide between mtab and mountinfo
is unnecessary in mainstream distros.

    Karel

-- 
 Karel Zak  <kzak at redhat.com>
 http://karelzak.blogspot.com