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.
How use fstab in Linux?
- Device – the first field specifies the mount device. …
- Mount point – the second field specifies the mount point, the directory where the partition or disk will be mounted. …
- File system type – the third field specifies the file system type.
- Options – the fourth field specifies the mount options.
Why is it called fstab?
fstab is a system configuration file on Linux and other Unix-like operating systems that contains information about major filesystems on the system. It takes its name from file systems table, and it is located in the /etc directory.
What is fstab in Ubuntu?
Introduction to fstab
The configuration file /etc/fstab contains the necessary information to automate the process of mounting partitions. In a nutshell, mounting is the process where a raw (physical) partition is prepared for access and assigned a location on the file system tree (or mount point).
What is the importance of ETC fstab in Linux file system?
The /etc/fstab file is one of the most important files in a Linux-based system, since it stores static information about filesystems, their mountpoints and mount options. In this tutorial we will learn to know its structure in details, and the syntax we can use to specify each entry in the file.
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.
How do I create an fstab entry?
- Install libblkid1 to see device specific information: sudo apt-get install libblkid1.
- Enter sudo blkid and look for the stick. …
- Then we create the fstab entry: sudo gedit /etc/fstab and append the line UUID=31f39d50-16fa-4248-b396-0cba7cd6eff2 /media/Data auto rw,user,auto 0 0.
What is the difference between fstab and MTAB?
/etc/fstab is a created by the user. It contains list of volumes to be mounted by mount . /etc/mtab is a created by the system. It contains a list of currently mounted devices.
How do I find etc fstab in Linux?
Display static filesystem information defined in fstab file. Verify /etc/fstab file contents. Verify /etc/fstab file contents and display verbose output. Verify static ext4 filesystem type information defined in particular file (mounted file systems table).
What is Lsblk in Linux?
Lsblk is used to display details about block devices and these block devices(Except ram disk) are basically those files that represent devices connected to the pc. It queries /sys virtual file system and udev db to obtain information that it displays. And it basically displays output in a tree-like structure.
How do I open fstab in terminal?
We can open fstab with the text editors like nano , vim , Gnome Text Editor , Kwrite etc. but if we want to save the changes we made we require to get root privileges with the sudo command.
How do I change fstab in Linux?
/etc/fstab is just a plain text file, so you can open and edit it with any text editor you’re familiar with. However, note that you must have the root privileges before editing fstab . So, in order to edit the file, you must either log in as root or use the su command to become root.