With multiple mounted partitions, if one
partition runs out of space, the others can continue to work.
Multiple operating systems??”You can configure your disk to contain multiple partitions
that can each be used to hold a different operating system type. For example, if you
started with a computer that had Windows on the hard disk, you could put Linux on a
separate partition, and then set up the computer to boot either operating system.
Backups??”Some fast ways exist to back up data from your computer that involve copying
the entire image of a disk or partition. If you want to restore that partition later, you
can simply copy it back (bit by bit) to a hard disk. With smaller partitions, this approach
can be done fairly efficiently.
Protecting from disk failure??”If one disk (or part of one disk) fails, having multiple
partitions mounted on your file system may let you continue working and just fix the one
disk that fails. Ghost for Linux (http://freshmeat.net/projects/g4l) is an example
of a tool for backing up a hard disk partition in Linux.
When a disk partition is mounted on the Linux file system, all directories and subdirectories below
that mount point are stored on that partition. So, for example, if you were to mount one partition
on / and one on /usr, everything below the /usr mount point would be stored on the second
partition, while everything else would be stored on the first partition.
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