[root@vipuser200 ~]# yum -y install cryptsetup#yum安裝加密工具

[root@vipuser200 ~]# fdisk /dev/sdd#步驟就不詳解了[root@vipuser200 ~]# partprobe /dev/sdd#獲取分區表[root@vipuser200 ~]# cryptsetup luksFormat /dev/sdd1#設置密碼Format F必須大寫WARNING!========This will overwrite data on /dev/sdd1 irrevocably.Are you sure? (Type uppercase yes): YES#必須為大寫YESEnter LUKS passphrase: #密碼Verify passphrase:#再次驗證密碼

[root@vipuser200 ~]# cryptsetup luksOpen /dev/sdd1 my_disk#Open O必須大寫Enter passphrase for /dev/sdd1:#密碼

[root@vipuser200 ~]# ll /dev/mapper/#存放位置total 0crw-rw---- 1 root root 10, 58 Jul 27 01:01 controllrwxrwxrwx 1 root root 7 Jul 27 01:20 my_disk -> ../dm-0#注：my_disk 指向/dm-0

[root@vipuser200 ~]# mkfs.ext4 /dev/mapper/my_disk

[root@vipuser200 ~]# mkdir mapper_mount#創建掛載點[root@vipuser200 ~]# mount /dev/mapper/my_disk mapper_mount/#掛載

[root@vipuser200 ~]# df -hFilesystem Size Used Avail Use% Mounted on/dev/sda2 9.9G 1.4G 8.0G 15% /tmpfs 479M 0 479M 0% /dev/shm/dev/sda1 194M 27M 158M 15% /boot/dev/sr0 3.6G 3.6G 0 100% /mnt/dev/mapper/my_disk 20G 172M 19G 1% /root/mapper_mount

[root@vipuser200 ~]# umount /root/mapper_mount/#首先卸載[root@vipuser200 ~]# cryptsetup luksClose /dev/mapper/my_disk#關閉加密分區 luksClose C大寫[root@vipuser200 ~]# mount /dev/sdd1 mapper_mount/#再次掛載發現失敗mount: unknown filesystem type 'crypto_LUKS#如果需要使用該磁盤則需要先打開磁盤及luksOpen命令然后載掛載