Can't run daemonded, daemon-tty, etc. on some Linux

[illwieckz]

Can't run daemonded, daemon-tty, etc. on some Linux, here with daemonded:

Warn: Could not bind singleton socket at file:
 "/tmp/.unvanquished-server-3893AD6762EA7A4328C37822C2B8727E/socket",
 error: "No such file or directory"

It is related to the filesytem, if I use TMPDIR="$(pwd)" (and then use another filesystem than /tmp) it works.

[illwieckz]

• Ubuntu 20.04.6 LTS focal
• /tmp is part of / which is mounted as ext4 defaults,relatime,lazytime,errors=remount-ro

[illwieckz]

With daemon-tty:

Warn: Could not bind singleton socket at file:
 "/tmp/.unvanquished-3893AD6762EA7A4328C37822C2B8727E/socket",
 error: "No such file or directory" 

[illwieckz]

Forget about it, logs were full and because /tmp was not a separate partition, it could not write to it.

Because I first experienced the macOS bug I then believed it was a variant of it:

• Can't run daemonded on macOS #1390