在VMware虛擬機配置中增加磁盤後，啟動Linux，使用root登錄。
首先查看未分區的磁盤,使用下面命令：
## 查看未使用的磁盤 fdisk -l
磁盤/dev/sdb後面沒有任何分區，是新掛載的磁盤
輸入下面命令來開始對磁盤/dev/sdb進行分區
## 開始格式化磁盤 ## fdisk /dev/sdb
有如下提示：
[root@localhost dev]# fdisk /dev/sdb Welcome to fdisk (util-linux 2.23.2). Changes will remain in memory only, until you decide to write them. Be careful before using the write command. Command (m for help):
輸入m來查看幫助，各選項功能如下：
Command action a toggle a bootable flag b edit bsd disklabel c toggle the dos compatibility flag d delete a partition g create a new empty GPT partition table G create an IRIX (SGI) partition table l list known partition types m print this menu n add a new partition o create a new empty DOS partition table p print the partition table q quit without saving changes s create a new empty Sun disklabel t change a partition's system id u change display/entry units v verify the partition table w write table to disk and exit x extra functionality (experts only)
首選使用n來創建一個擴展分區，輸入選項n：
Command (m for help): n Partition type: p primary (0 primary, 0 extended, 4 free) e extended Select (default p):
選擇創建擴展分區，輸入選項e，然後選擇擴展分區編號、起始位置和大小，我們選擇整個磁盤只創建一個擴展分區:
Select (default p): e
Partition number (1-4, default 1): 1
First sector (2048-41943039, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-41943039, default 41943039):
Using default value 41943039
Partition 1 of type Extended and of size 20 GiB is set
擴展分區創建好後，可以在此基礎上進行創建邏輯分區，我們創建2個邏輯分區並分別設置為10G:
Command (m for help): n
Partition type:
p primary (0 primary, 1 extended, 3 free)
l logical (numbered from 5)
Select (default p): l
Adding logical partition 5
First sector (4096-41943039, default 4096):
Using default value 4096
Last sector, +sectors or +size{K,M,G} (4096-41943039, default 41943039): +10G
Partition 5 of type Linux and of size 10 GiB is set
Command (m for help): n
Partition type:
p primary (0 primary, 1 extended, 3 free)
l logical (numbered from 5)
Select (default p): l
Adding logical partition 6
First sector (20977664-41943039, default 20977664):
Using default value 20977664
Last sector, +sectors or +size{K,M,G} (20977664-41943039, default 41943039):
Using default value 41943039
Partition 6 of type Linux and of size 10 GiB is set
最後使用選項p來查看分好的分區：
Command (m for help): p Disk /dev/sdb: 21.5 GB, 21474836480 bytes, 41943040 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk label type: dos Disk identifier: 0x40e44e64 Device Boot Start End Blocks Id System /dev/sdb1 2048 41943039 20970496 5 Extended /dev/sdb5 4096 20975615 10485760 83 Linux /dev/sdb6 20977664 41943039 10482688 83 Linux
為磁盤分配好分區後，需要使用選項w來進行保存：
Command (m for help): w The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks.
在執行partprobe命令來重新讀取分區信息，如果有警告可以忽略。
## 重新讀取分區信息 ## partprobe
然後需要對磁盤進行格式化，使用mkfs將磁盤格式化為ext4格式(注意擴展分區不能進行格式化)
mkfs -t ext4 /dev/sdb5
mke2fs 1.42.9 (28-Dec-2013) Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) Stride=0 blocks, Stripe width=0 blocks 655360 inodes, 2621440 blocks 131072 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=2151677952 80 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 Allocating group tables: done Writing inode tables: done Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done
然後我們創建兩個目錄來掛載這兩個邏輯分區：
## 然後創建目錄 ## mkdir /disk5 /disk6 ## 使用mount命令來掛載目錄 ## mount /dev/sdb5 /disk5 mount /dev/sdb6 /disk6
最後使用mount命令來查看掛載情況
[root@localhost dev]# ## 使用mount命令來查看掛載情況 ## [root@localhost dev]# mount | grep "sdb" /dev/sdb5 on /disk5 type ext4 (rw,relatime,seclabel,data=ordered) /dev/sdb6 on /disk6 type ext4 (rw,relatime,seclabel,data=ordered)
