Loopback filesystems are very interesting components of Linux like systems. We usually create filesystems on devices (for example, disk drive partitions). These storage devices are available as device files like
/dev/device_name. In order to use the storage device filesystem, we need to mount it at some directory called a mount point. Loopback filesystems are those that we create in files rather than a physical device. We can mount those files as devices at a mount point. Let's see how to do it.
Loopback filesystems reside on a file. We mount these files by attaching it to a device file. An example of a loopback filesystem is the initial ramdisk file, which you would see at
boot/initrd.img. It stores an ...