[root@CentOS6 desktop]# fdisk /dev/sdb Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel Building a new DOS disklabel with disk identifier 0x4ef8fb05. Changes will remain in memory only, until you decide to write them. After that, of course, the previous content won't be recoverable. Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite) WARNING: DOS-compatible mode is deprecated. It's strongly recommended to switch off the mode (command 'c') and change display units to sectors (command 'u'). Command (m for help): n //Create a new partition Command action e extended p primary partition (1-4) p Partition number (1-4): 1 First cylinder (1-2610, default 1): Using default value 1 Last cylinder, +cylinders or +size{K,M,G} (1-2610, default 2610): Using default value 2610 Command (m for help): w //Save and exit The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks. [root@CentOS6 desktop]# mkdir /newpar //Create a mounted folder [root@CentOS6 desktop]# mkfs.ext4 /dev/sdb1 //ext4 format mke2fs 1.41.12 (17-May-2010) filesystem label= Operating System: Linux block size=4096 (log=2) chunk size=4096 (log=2) Stride=0 blocks, Stripe width=0 blocks 1310720 inodes, 5241198 blocks 262059 blocks (5.00%) reserved for the super user first data block = 0 Maximum filesystem blocks=4294967296 160 block groups 32768 blocks per group, 32768 fragments per group 8192 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000 Writing to inode table: done Creating journal (32768 blocks): 完成 Writing superblocks and filesystem accounting information: 完成 This filesystem will be automatically checked every 22 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override. [root@CentOS6 desktop]# mount /dev/sdb1 /newpar //Mount the partition [root@CentOS6 desktop]# df -h //View mount status Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_centos6-lv_root 50G 3.7G 43G 8% / tmpfs 932M 228K 932M 1% /dev/shm /dev/sda1 477M 40M 412M 9% /boot /dev/mapper/vg_centos6-lv_home 45G 52M 43G 1% /home /dev/sdb1 20G 44M 19G 1% /newpar