Linux Add new hard drive automatically mount hard disk

How to add a new hard drive to Linux automatically mount a hard drive
　　
1. Insert a new hard drive, start a Linux server, use Fdisk-l to  view the hard disk

#fdisk-L
　　
disk/dev/sdb:1000.2 GB, 1000204886016 bytes
　　
2. Format the hard drive
　　
#mkfs-T Ext4/dev/sdb
　　

　　
#mount the address  of the hard drive address to mount
　　
#mount/dev/sdb/media/imgs
　　
4. Automatically mount the partition after a system restart
　　
#vi  /etc/fstab
　　
Add on last line
　　
/dev/sdb  /media/imgs                  ext4    defaults        1   2

Linux Add new hard drive automatically mount hard disk