Disable TMPFS

[holysword]

Hi, I would like to know how can I totally and completely disable TMPFS from my system. I want my /tmp to be mounted on a physical hard disk.

Thanks in advance.

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 14.04.2 LTS
Release: 14.04
Codename: trusty

[ubfan1]

/tmp is normally just a directory under the root (/), so it's probably on the hard disk. TMPFS is not even used for /tmp. Some things like /run are kept in ram and use TMPFS (show this with the command df -a in a terminal), but that does not seem to be what you are asking.

[holysword]

/tmp is normally just a directory under the root (/), so it's probably on the hard disk. TMPFS is not even used for /tmp. Some things like /run are kept in ram and use TMPFS (show this with the command df -a in a terminal), but that does not seem to be what you are asking.

True, /tmp is mounted in the harddrive, sorry about that. This is output of cat /etc/mtab | grep tmpfs
none /sys/fs/cgroup tmpfs rw 0 0
udev /dev devtmpfs rw,mode=0755 0 0
tmpfs /run tmpfs rw,noexec,nosuid,size=10%,mode=0755 0 0
none /run/lock tmpfs rw,noexec,nosuid,nodev,size=5242880 0 0
none /run/shm tmpfs rw,nosuid,nodev 0 0
none /run/user tmpfs rw,noexec,nosuid,nodev,size=104857600,mode=0755 0 0

and this is df -h
/dev/sda6 103G 21G 78G 21% /
none 4,0K 0 4,0K 0% /sys/fs/cgroup
udev 1,9G 4,0K 1,9G 1% /dev
tmpfs 384M 1,3M 382M 1% /run
none 5,0M 0 5,0M 0% /run/lock
none 1,9G 884K 1,9G 1% /run/shm
none 100M 14M 87M 14% /run/user
AFS 2,0T 0 2,0T 0% /afs

so if I understand it correctly, whatever is inside /run is allowed to take up to 1,9G of my memory (please, correct me if I am wrong) if needed be. I would like to be able to control and/or completely disable that.

[ian-weisser]

I would like to be able to control and/or completely disable that.

You probably can, but it won't be easy. /run uses tmpfs for a reason.

A good place to start is https://wiki.debian.org/ReleaseGoals/RunDirectory
and http://unix.stackexchange.com/questions/13972/what-is-this-new-run-filesystem

[ubfan1]

You looked at the wrong line, /run is only 1.3M not 1.9G.