Block file: A block file is a hardware file which read/write data in blocks instead of character by character. … These devices files are used to store data on real hardware and can be mounted so that we can access the data we written.

What is block device file in Linux?

Block devices are characterized by random access to data organized in fixed-size blocks. Examples of such devices are hard drives, CD-ROM drives, RAM disks, etc. … To simplify work with block devices, the Linux kernel provides an entire subsystem called the block I/O (or block layer) subsystem.

Which is an example for block special file?

Examples of block special files: /dev/sdxn — mounted partitions of physical storage devices. The letter x refers to a physical device, and the number n refers to a partition on that device. For instance, /dev/sda1 is the first partition on the first physical storage device.