Assuming the user is ‘reed’, these commands mount tmpfs which is an efficient RAM based file system on Linux. In this particular situation, /mnt/tmpfs is the relative root, and repositories is an application subdirectory within the RAM based file system.

> su
# cd /mnt
# mkdir tmpfs
# mount -t tmpfs tmpfs /mnt/tmpfs
# cd /mnt/tmpfs
# mkdir repositories
# chown reed repositories