LFS201; Lab 14.2. fs_mark: mount -o remount error
I would appreciate any help on the below.
In lab 14.2 we are looking at fs_mark and iostat results.
It is suggested to observe how the results change after remounting the file.
I have run the following command:
sudo mount -o remount,journal_async_commit /tmp
However I am getting this error
mount : /tmp mount point not mounted or bad option
(same happens if I substitute /tmp with /)
The exit status is '32' - mount failure.
I was trying to find any solution on the web to no avail.
I am using Xubuntu; 18.04.1-Ubuntu
The files are ext4 files.