Linux setting disk label

To list current disk labels:

sudo lsblk -o name,mountpoint,label,size,uuid

pi@buster48:~$ sudo lsblk -o name,mountpoint,label,size,uuidNAME        MOUNTPOINT LABEL     SIZE UUIDsda                              1.8T└─sda1                           1.8T c14ffaff-fd21-4fce-a54f-cf3f4ca41c08mmcblk0                         29.8G├─mmcblk0p1 /boot      boot      256M 1FAF-0B10└─mmcblk0p2 /          retropie 29.6G a6308ae3-fdfb-4c68-b14f-ba56fb5746f1

 sudo e2label /dev/sda1 usbdisk1

sudo lsblk -o name,mountpoint,label,size,uuid

Should show labelled disk now.

reboot to verify fstab mounts by label

Run df -aTh.

Yes I see /home/pi/RetroPie mounted from /dev/sda1