Creating FS on linux

# Creating FS on linux 

fdisk /dev/xvdb
pvcreate /dev/xvdb1
vgcreate vg_u01 /dev/xvdb1
df -h
vgs
lvcreate -L 99.99g -n lv_u01 vg_u01
lvs
df -h
mkfs.ext4 /dev/mapper/vg_u01-lv_u01
mkdir /u01
vi /etc/fstab  -- add new entry in it
mount -a