A Deep Dive into Debian 13 /tmp: What's New, and What to Do If You Don't Like It
12 days ago
- #Debian
- #System Administration
- #Linux
- Debian 13 'Trixie' changes /tmp to use tmpfs, storing files in memory instead of on disk.
- tmpfs offers faster access but files are temporary and lost on reboot.
- Default allocation for /tmp is 50% of RAM, adjustable via systemctl edit tmp.mount.
- Automatic cleanup deletes unused files in /tmp after 10 days and in /var/tmp after 30 days.
- Low-memory systems may find the default tmpfs allocation too high, but it can be disabled with systemctl mask tmp.mount.