lyx_tmpdirs in /tmp

[Paul A. Rubin]

On 1/6/22 12:31 PM, José Abílio Matos via lyx-users wrote:
>
> On Thursday, 6 January 2022 14.28.53 WET Wolfgang Engelmann via 
> lyx-users wrote:
>
> > This is what I get after
>
> > mount | grep tmp:
>
> >
>
> > udev on /dev type devtmpfs
>
> > (rw,nosuid,relatime,size=1909652k,nr_inodes=477413,mode=755)
>
> > tmpfs on /run type tmpfs
>
> > (rw,nosuid,nodev,noexec,relatime,size=386516k,mode=755)
>
> > tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
>
> > tmpfs on /run/lock type tmpfs 
> (rw,nosuid,nodev,noexec,relatime,size=5120k)
>
> > tmpfs on /run/user/1000 type tmpfs
>
> > 
> (rw,nosuid,nodev,relatime,size=386512k,nr_inodes=96628,mode=700,uid=1000,gid
>
> > =1000)
>
> >
>
> > where does one see the erasing period/time?
>
> >
>
> > Wolfgang
>
>
> The issue here is that /tmp does not seem to be managed by tmpfs. :-(
>
>
> FWIW my full output is similar to yours:
>
>
> devtmpfs on /dev type devtmpfs 
> (rw,nosuid,seclabel,size=16104168k,nr_inodes=4026042,mode=755,inode64)
>
> tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev,seclabel,inode64)
>
> tmpfs on /run type tmpfs 
> (rw,nosuid,nodev,seclabel,size=6452820k,nr_inodes=819200,mode=755,inode64)
>
> tmpfs on /tmp type tmpfs 
> (rw,nosuid,nodev,seclabel,size=16132044k,nr_inodes=409600,inode64)
>
> tmpfs on /run/user/1000 type tmpfs 
> (rw,nosuid,nodev,relatime,seclabel,size=3226408k,nr_inodes=806602,mode=700,uid=1000,gid=1000,inode64)
>
>
> -- 
>
> José Abílio
>
>
This may be a distribution thing. My output from "mount | grep tmp" on 
Mint is similar to Wolfgang's and in particular does not mention /tmp. 
That said, I do get automatic cleaning of /tmp. For recent versions of 
Ubuntu (and hence Mint), and apparently for Red Hat Enterprise and maybe 
some other distros, cleaning /tmp is a service handled by systemd. Based 
on stuff I found on the web, I ran

cat /usr/lib/systemd/system/systemd-tmpfiles-clean.timer

on my system and got the following:

[Unit]
Description=Daily Cleanup of Temporary Directories
Documentation=man:tmpfiles.d(5) man:systemd-tmpfiles(8)

[Timer]
OnBootSec=15min
OnUnitActiveSec=1d

Running "man systemd-tmpfiles" produces a fairly comprehensive (meaning 
lengthy) explanation.

Paul

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