Well, I did this but I got some error like as follows:
linux-5rxn:~ # e2label /dev/sdb happy218
e2label: Bad magic number in super-block while trying to open /dev/sdb
Couldn't find valid filesystem superblock.
linux-5rxn:~ # umount /dev/sdb1
linux-5rxn:~ # e2label /dev/sdb1 happy218
e2label: Bad magic number in super-block while trying to open /dev/sdb1
Couldn't find valid filesystem superblock.
I just did with both – sdb and sdb1 to make sure that it is done. Only one pendrive is inserted at the moment.
linux-5rxn:~ # lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 232.9G 0 disk
├─sda1 8:1 0 23G 0 part /
├─sda2 8:2 0 5G 0 part [SWAP]
└─sda3 8:3 0 204.9G 0 part /home
sdb 8:16 1 7.6G 0 disk
└─sdb1 8:17 1 7.6G 0 part /run/media/linuxearth/9FF1-0A93
sr0 11:0 1 1024M 0 rom
Thanks.