How do I force the order of things at shutdown with systemd

I had a thread about this earlier and the sollution I “found” was to create my own systemd service where I used PartOf to bind it to the systemd mount unit.
That no longer works and I finally figuered out exactly why it happens sometimes and sometimes not. Because of the order of how things are done at shutdown/reboot.
I have now removed the systemd unit and is relying on the default installed one at /usr/lib/systemd/system/smb.service

My samba server is only sharing things from one partition, and that partition is mounted with systemd.

So I sometimes see this in the shudown log.

$ sudo journalctl -b -1 --no-pager | grep -ie smbd -e fil-fitt
--------------- cut for unnecessary info ----------------
Dec 29 12:39:31 bednaManjaro systemd[1]: Unmounting File drive (fil-fitt)...
Dec 29 12:39:31 bednaManjaro smbd[1045]: [2023/12/29 12:39:31.631014,  0] ../../source3/smbd/smb2_service.c:117(chdir_current_service)
Dec 29 12:39:31 bednaManjaro smbd[1045]:   chdir_current_service: vfs_ChDir(/media/fil-fitt/divprogs/Raspberry Pi) failed: No such file or directory. Current token: uid=1000, gid=1000, 10 groups: 1000 998 991 3 50 90 98 117 962 1001
--------------- cut for unnecessary info ----------------

Witch makes sense since the partition is already unmounted.

So my question is: How do I force smb.service to exit BEFORE the partition media-fil\\x2dfitt.mount gets umounted?

Hi @bedna,

Perhaps this helps


Hope it does!

OMFG, I was under the assumption that was controlling the STARTING order of the service.
I’m off to do some testing. Thanks!

I’ll come back with info if it works.

According to the last link I sent:

See the documentation for After= in man systemd.unit, which states:

Note that when two units with an ordering dependency between them are shut down, the inverse of the start-up order is applied. i.e. if a unit is configured with After= on another unit, the former is stopped before the latter if both are shut down.

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I HAD nmb.service winbind.service media-fil\\x2dfitt.mount in the smb.service I had active before so it is strange that it did not work. Maybe the PartOf made it wrong.

I opted to keep the default smb.service file and added: Before=smb.service to my mount unit instead and it now works as intended.
Thanks! <3

Full mount unit file for reference:

$ cat /etc/systemd/system/media-fil\\x2dfitt.mount
Description=File drive (fil-fitt)


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