[Buildroot] systemd: /var/tmp missing from skeleton

[lpdev at cordier.org]

De : Carlos Santos <unixmania at gmail.com>
À : lpdev at cordier.org
Sujet : Re: [Buildroot] systemd: /var/tmp missing from skeleton
Date : 30/10/2019 23:14:07 Europe/Paris
Copie à : buildroot <buildroot at buildroot.org>

On Wed, Oct 30, 2019 at 2:45 PM <lpdev at cordier.org> wrote:
>
>
> Hello,
>
> Just spotted an issue with the systemd package (note: I'm currently working on buildroot 2019.08.1 tag). Some services on my build are not started properly such as systemd-hostnamed.service, systemd-resolved.service and systemd-timesyncd.service.
>
> Some debugging unveiled that all these services are depending on /var/tmp existence (they all have the "PrivateTmp=yes" in their unit). Without this folder on the target filesystem, services will return "Failed to run 'start' task: No such file or directory".
>
> In order to fix that issue and submit a patch, I would like to be sure I did not miss a config in buildroot. I think the fix should take place in SKELETON_INIT_SYSTEMD_INSTALL_TARGET_CMDS located in package/skeleton-init-systemd.mk. Am I right?
>
> Thanks,
>

/var/tmp should have been created by systemd-tmpfiles on startup. Did
you remove the systemd-tmpfiles-setup symlinks from
/usr/lib/systemd/system/sysinit.target.wants? You can check the ststus
with systemctl, e.g.



Nop, systemd-tmpfiles-setup is present in /usr/lib/systemd/system/sysinit.target.wants. However, "systemctl --all | grep tmp" shows that systemd-tmpfiles-setup.service is marked as inactive and dead. Also systemctl list-dependencies does not show the tmpfiles-setup unit. Do you have any idea of where I can search to solve this problem?




# systemctl status --no-pager --full systemd-tmpfiles-setup
● systemd-tmpfiles-setup.service - Create Volatile Files and Directories
Loaded: loaded
(/usr/lib/systemd/system/systemd-tmpfiles-setup.service; static;
vendor preset: enabled)
Active: active (exited) since Wed 2019-10-30 22:13:34 UTC; 14s ago
Docs: man:tmpfiles.d(5)
man:systemd-tmpfiles(8)
Process: 71 ExecStart=/usr/bin/systemd-tmpfiles --create --remove
--boot --exclude-prefix=/dev (code=exited, status=0/SUCCESS)
Main PID: 71 (code=exited, status=0/SUCCESS)

Oct 30 22:13:34 buildroot systemd[1]: Starting Create Volatile Files
and Directories...
Oct 30 22:13:34 buildroot systemd[1]: Started Create Volatile Files
and Directories.

-- 
Carlos Santos <unixmania at gmail.com>

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