mkfs is used to build a Linux filesystem on a device, usually a hard disk partition. The device argument is either the device name (e.g., /dev/hda1, /dev/sdb2), or a regular file that shall contain the filesystem. The size argument is the number of blocks to be used for the filesystem.
What is the use of mkfs command in Linux?
The mkfs command stands for “make file system” is utilized to make a file system (which is, a system for organizing a hierarchy of directories, subdirectories, and files) on a formatted storage device usually, a partition on a hard disk drive (HDD) or it can also be a USB drive, etc.
How do you use mkfs command?
The modern way of using mkfs is to type “mkfs.” and then the name of the file system you wish to create. To see the file systems that mkfs can create, type “mkfs” and then hit the Tab key twice. There’s no space after “mkfs”, just hit Tab twice. The list of available file systems is displayed in the terminal window.
Does mkfs erase data?
mkfs does not explicitly delete files. In the target device it creates structures specific to the desired filesystem, not taking care of anything that is already there. The new filesystem is created empty.
What is the use of mkfs ext4?
mkfs utility is used to create filesystem (ext2, ext3, ext4, etc) on your Linux system. You should specify the device name to mkfs on which the filesystem to be created. WARNING: Executing these commands will destroy all the data on your filesystem.
What is Usermod command in Linux?
usermod command or modify user is a command in Linux that is used to change the properties of a user in Linux through the command line. After creating a user we have to sometimes change their attributes like password or login directory etc. … The information of a user is stored in the following files: /etc/passwd.
How do I use fsck in Linux?
Run fsck on Linux Root Partition
- To do so, power on or reboot your machine through the GUI or by using the terminal: sudo reboot.
- Press and hold the shift key during boot-up. …
- Select Advanced options for Ubuntu.
- Then, select the entry with (recovery mode) at the end. …
- Select fsck from the menu.
How do I use Swapon in Linux?
To find out how much swap space has been allocated and is currently being used, use either the swapon or top commands on Linux: You can use the mkswap(8) command to create swap space. The swapon(8) command tells Linux that it should use this space.
What is the use of more command in Linux?
more command in Linux with Examples. more command is used to view the text files in the command prompt, displaying one screen at a time in case the file is large (For example log files). The more command also allows the user do scroll up and down through the page. The syntax along with options and command is as follows …
What is fstab file in Linux?
Your Linux system’s filesystem table, aka fstab , is a configuration table designed to ease the burden of mounting and unmounting file systems to a machine. … It is designed to configure a rule where specific file systems are detected, then automatically mounted in the user’s desired order every time the system boots.
What is file system check in Linux?
fsck (file system check) is a command-line utility that allows you to perform consistency checks and interactive repairs on one or more Linux file systems. … You can use the fsck command to repair corrupted file systems in situations where the system fails to boot, or a partition cannot be mounted.
What is mkfs XFS command in Linux?
xfs constructs an XFS filesystem by writing on a special file using the values found in the arguments of the command line. It is invoked automatically by mkfs(8) when it is given the -t xfs option. In its simplest (and most commonly used form), the size of the filesystem is determined from the disk driver.