[Fedora] Re: how to automatically clean /tmp

[Gordon Messmer]

On 01/28/2016 02:46 AM, Walter Cazzola wrote:
> On Wed, 27 Jan 2016, Gordon Messmer wrote:
>
>> If you'd like to use tmpfs now, you can "systemctl enable tmp.mount" 
>> and comment out the /tmp item you currently have in fstab.
>
> unfortunately this didn't work
>
>    > systemctl enable tmp.mount
>    The unit files have no [Install] section. They are not meant to be 
> enabled
>    using systemctl.

That's weird...

# tail -3 /usr/lib/systemd/system/tmp.mount
# Make 'systemctl enable tmp.mount' work:
[Install]
WantedBy=local-fs.target


> But I've solved it by manually adding
>    tmpfs  /tmp tmpfs rw,seclabel 0 0
> to /etc/fstab and commenting the line used to mount the old /tmp
> partition.

Obviously that works, but it'll be mounted later in the boot process.

Thinking about it... it's possible that /tmp on tmpfs is actually 
mounted by default, without needing to "enable" it specifically, and 
that the only requirement is that you don't specify any other filesystem 
for /tmp in fstab.  If you're curious, try it.  Comment out /tmp in 
fstab and see what you get when you reboot.