Format partition with the ext4 file system

Format partition with the ext4 file system

The ext4 filesystem is known as the forth extended filesystem, and is the default file system on many Linux distributions.

To Format a partition with the ext4 filesystem run the following command:

$ sudo mkfs.ext4 /dev/sdc1

Replace sdc1 with the relevent disk and partition that you want to format. In this example, the disk is /dev/sdc, and its the first partition on that disk. Make sure you get the drive and partition correct or you may wipe something that you dont want to.


$ sudo mkfs.ext4 /dev/sdc1 
mke2fs 1.43.4 (31-Jan-2017) 
Creating filesystem with 261888 4k blocks and 65536 inodes 
Filesystem UUID: 15d8146f-bcb3-414c-864f-5100bb4b0bf8 
Superblock backups stored on blocks: 
32768, 98304, 163840, 229376 

Allocating group tables: done 
Writing inode tables: done 
Creating journal (4096 blocks): done 
Writing superblocks and filesystem accounting information: done

If the parition already has a filesystem on it, you should get a warning such as this:


$ sudo mkfs.ext4 /dev/sdc1 
mke2fs 1.43.4 (31-Jan-2017) 
/dev/sdc1 contains a ext4 file system 
created on Sun Jun 4 22:59:38 2017 
Proceed anyway? (y,N)

Press “y” and enter to confirm you want to overwrite the file system.