Label a Linux Partition

Q. How do I label a Linux partition? How do I display current label?

A. You need to use e2label or tune2fs command line to change the label on an ext2/ext3 filesystem. e2label will display or change the filesystem label on the ext2 filesystem located on device.

Display current label

If the optional argument new-label is not present, e2label will simply display the current filesystem label.
$ sudo e2label /dev/sda1
or
# e2label /dev/sda1
Sample output:

/boot

Set a new label

If the optional argument new-label is present, then e2label will set the filesystem label to be new-label. Ext2 filesystem labels can be at most 16 characters long; if new-label is longer than 16 characters, e2label will truncate it and print a warning message. To set a new label, enter:
# e2label /dev/sdb2 usbstroage
It is also possible to set the filesystem label using the -L option of tune2fs, enter:
# tune2fs -L usbstroage /dev/sdb2