SYNOPSIS
e2label device [ new-label ]DESCRIPTION
e2label will display or change the filesystem label on the ext2, ext3, or ext4 filesystem located on device.If the optional argument new-label is not present, e2label will simply display the current filesystem 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.
It is also possible to set the filesystem label using the -L option of tune2fs(8).