clear tmpfs in my case

Question

I am on a Ubuntu machine.

I have make a directory under root directory, by:

$ sudo mkdir /hello
$ sudo mkdir /hello/bye

Then I mount tmpfs with size 1024M to /hello/bye by:

$ sudo echo "tmpfs   /hello/bye   tmpfs   size=1024M,mode=0777  0  0" >> /etc/fstab
$ sudo mount -a

In future , How to clear /hello/bye (tmpfs) ?

Solution

If by clear you mean delete all files in there, it's like any other directory:

rm -rf /hello/bye/*

If you mean unmount the tmpfs partition simply do:

umount /hello/bye

Having put the line

tmpfs   /hello/bye   tmpfs   size=1024M,mode=0777  0  0

in your /etc/fstab, that partition will be automatically mounted at every boot. If you don't want to automout use the noauto option:

tmpfs   /hello/bye   tmpfs   size=1024M,mode=0777,noauto  0  0

If you don't need the partition any more, simply delete that line from /etc/fstab and delete the directory /hello/bye.

Comments

[Hanan N.]

What is mean "to clrear" ?