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= INVESTIGATION 1: File System Management =
We take for granted that a file-system must be mounted (for example the root partition) in order for a Linux system to be usable upon system start-up. The '''/etc/fstab''' (file system table) contains entries to mount various file systems automatically upon start-up of the Linux system.
The Linux sys admin also has the ability to manually '''mount''' (connect) and '''un-mount''' (disconnect) partitions in order to perform maintenance on the file system (for example un-mounting the '''/home''' partition to install software and prevent users from logging in during that process).
We will now learn how to perform these operations (including monitoring of disk space usage) in Part 1.
== Part 1: The /etc/passwd file ==
