Published Jan 10, 2022
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From Wikipedia:
In computing, a file system or filesystem controls how data is stored and
retrieved. Without a file system, information placed in a storage medium would
be one large body of data with no way to tell where one piece of information
stops and the next begins. By separating the data into pieces and giving each
piece a name, the information is easily isolated and identified. Taking its name
from the way paper-based information systems are named, each group of data is
called a "file". The structure and logic rules used to manage the groups of
information and their names is called a "file system".
$ lsblk -f
NAME FSTYPE LABEL UUID MOUNTPOINT
sdb
└─sdb1 vfat Transcend 4A3C-A9E9
To manually mount a file system located on a device (e.g., a partition) to a directory, use mount(8). This example mounts /dev/sda1 to /mnt.
# mount /dev/sda1 /mnt
This attaches the file system on /dev/sda1 at the directory /mnt, making the
contents of the file system visible. Any data that existed at /mnt before this
action is made invisible until the device is unmounted.
fstab contains information on how devices should be automatically mounted if present. See the fstab article for more information on how to modify this behavior.
To list all mounted file systems, use findmnt(8):
$ findmnt
To unmount a file system use umount(8). Either the device containing the file system (e.g., /dev/sda1) or the mount point (e.g., /mnt) can be specified:
# umount /dev/sda1
or
# umount /mnt