Let’s say I have a partition as
/dev/sdc1 formatted using XFS file system, and I want to give a label to it as
externo. Here is one way to do it:
# xfs_admin -L externo /dev/sdc1 writing all SBs new label = "externo"
To read the label:
# xfs_admin -l /dev/sdc1 label = "externo"