CentOs6 partitioning & formatting & mounting new hard disk/dev/sdb

First, partition/dev/sdb:
 
[Root@111cn.net/] # fdisk/dev/sdb # enter this device
 
Command (m for help): p # View partitions
 
/Dev/sdb1 1 500 4016218 + 83 Linux
/Dev/sdb2 501 1000 4016250 83 Linux
/Dev/sdb3 1001 1305 2449912 + 5 Extend
 
Command (m for help): d # delete a partition
 
Partition number (1-4): 1 # delete three partitions in sequence and re-Partition
 
Command (m for help): n # Create a partition
 
Command action
E extended # extended partition
P primary partition (1-4) # indicates the primary partition
 
Input: p
 
Partition number (1-4): 1 # set a primary Partition
 
First cylinder (1-1305, default 1): Press enter
 
Last cylinder or + size or + sizeM or + sizeK (1-1305, default 1305): Press enter
 
Partition number (1-4): 1
First cylinder (1-1305, default 1 ):
Using default value 1
Last cylinder or + size or + sizeM or + sizeK (1-1305, default 1305 ):
Using default value 1305
Command (m for help): p
 
Disk/dev/sdb: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders
Units = cylinders of 16065*512 = 8225280 bytes
 
Device Boot Start End Blocks Id System
/Dev/sdb1 1 1305 10482381 83 Linux
 
Command (m for help): w # save the partition. Don't forget it.
 
[Root@111cn.net/] # yum install e4fsprogs # install the ext4 user-mode tool;
 
[Root@111cn.net/] # mkfs. ext4-E lazy_itable_init = 1/dev/sdb1 # format the sdb1 partition to the ext4 file system;
 
[Root@111cn.net/] # mkdir/web # Create a directory;
 
[Root@111cn.net/] # echo "/dev/sdb1/web ext4 defaults, noatime, nodiratime 0 0">/etc/fstab # modify the system configuration file;
 
[Root@111cn.net/] # mount-a # mount disk;
 
[Root@111cn.net/] # df-lh # View disk information
 
Filesystem Size Used Avail Use % Mounted on
/Dev/sda2 13G 2.1G 11G 17%/
Tmpfs 513 M 0 513 M 0%/dev/shm
/Dev/sdb1 9.9G 151 M 9.2G 2%/web