Seems that /tmp/ directory is on root drive mount, instead of RAM within official distro. Why?

Distro Discussion & Help
1

I just realized that /tmp/ directory is not mounted on RAM, doesn’t this cause undue wear and tear of the drive?

2

On RAM should be OK, as long as /tmp/ is used correctly and nothing expects it to survive a reboot. Current RAM uses charges metallically conducted into capacitors, rather than tunnelled through insulating layers and I’ve never seen a cycle count limit on RAM.

Everything that gets written to disk is written to RAM first.

3

Not using ephemeral /tmp is one common method that penetrations of whatever origin can persist over reboots.

Personally I prefer my tmp structures to actually be temporary.

4

I’ve updated the topic to clarify that I found that /tmp/ directory is mounted on the root partition in lieu of ram.

[root@pbx ~]# df
Filesystem                 1K-blocks    Used Available Use% Mounted on
devtmpfs                     2442160       0   2442160   0% /dev
tmpfs                        2488880       0   2488880   0% /dev/shm
tmpfs                        2488880  254916   2233964  11% /run
tmpfs                        2488880       0   2488880   0% /sys/fs/cgroup
/dev/mapper/SangomaVG-root  19552256 9845688   9706568  51% /
/dev/sda1                    1983056   62604   1801668   4% /boot
tmpfs                         497776       0    497776   0% /run/user/0


[root@pbx ~]# df -h /tmp/
Filesystem                  Size  Used Avail Use% Mounted on
/dev/mapper/SangomaVG-root   19G  9.4G  9.3G  51% /

I’m asking why is this so as I would also prefer tmp directory to be on ram instead of wearing out the SSD.

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5

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