How to move or relocate /var folder to a new partition in Linux

<note> Note: If this is a virtual machine, see how to add a new virtual hard disk to the VM with a corresponding vendor. </note>

* Switch to single-user mode:

init 1

Note: This will reboot the server into single-user mode where services aren't started and networking is offline for the server. Please login as root when the login dialog is presented and proceed to open a terminal window.

Copy the data in var only to the new mounted filesystem:

cp -apx /var/* /mnt/newvar

Rename the current /var directory for backup purposes:

mv /var /var.old

Make the new var directory:

mkdir /var

Edit the /etc/fstab file: Replace /mnt/newvar with /var Save and Close the file.

Note: The new partition is now configured to be mounted at /var on boot.

Restart the server.