通過此教程對未啟用的硬盤進行分區并掛載，可以確保通過DiyVM面板 重裝系統是不丟失掛載分區的數據！

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先通過fdisk -l查看目前磁盤分區狀況

?[root@MyVPS ~]#? fdisk -l
Disk /dev/xvda: 8589 MB, 8589934592 bytes
255 heads, 63 sectors/track, 1044 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/xvda1 * 1 13 104391 83 Linux
/dev/xvda2 14 1044 8281507+ 8e Linux LVM

Disk /dev/xvdb:?23.6 GB, 23622320128 bytes
255 heads, 63 sectors/track, 2871 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System

? 我們可以看到/dev/xvdb容量有23.6G，而且沒有分區，接下來我們對它進行分區和掛載
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# fdisk /dev/xvdb

?[root@MyVPS ~]#? fdisk /dev/xvdb
The number of cylinders for this disk is set to 2871.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)

輸入n新建分區
Command (m for help):? n
Command action
e extended
p primary partition (1-4)
p

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? 選擇分區類型?
?
??? 這里有兩個選項：?
??? p: 主分區 linux上主分區最多能有4個?
??? e: 擴展分區 linux上擴展分區只能有1個，擴展分區創建后不能直接使用，還要在擴展分區上創建邏輯分區。?
這里我選擇的p。

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/dev/xvdb中第1個分區

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選擇分區個數?

可以選擇4個分區，這里我只分成1個分區?

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Partition number (1-4):? 1
First cylinder (1-2871, default 1):
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-2871, default 2871):
Using default value 2871

輸入W保存退出
Command (m for help):? w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.

通過上述步驟我們已將/dev/xvdb分區完成，下面我們對分區格式化并進行掛載

將新分區xvdb1(此名稱因系統而異)格式化為ext3格式
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# mkfs -t ext3 /dev/xvdb1

[root@MyVPS ~]#? mkfs -t ext3 /dev/xvdb1
mke2fs 1.39 (29-May-2006)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
2883584 inodes, 5765319 blocks
288265 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
176 block groups
32768 blocks per group, 32768 fragments per group
16384 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 24 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.

將新分區xvdb1掛載，我們示例掛載到/www目錄。 新建目錄/www，然后掛載：

# mkdir /www?? /*建立www目錄*/
# mount /dev/xvdb1 /www??? /*掛載到www目錄*/

完成后我們通過df -hal可以看到，新分區已經掛載到目錄/www上了
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[root@MyVPS ~]#? df -hal
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
5.7G 1.4G 4.1G 25% /
proc 0 0 0 - /proc
sysfs 0 0 0 - /sys
devpts 0 0 0 - /dev/pts
/dev/xvda1 99M 28M 67M 30% /boot
tmpfs 256M 0 256M 0% /dev/shm
none 0 0 0 - /proc/sys/fs/binfmt_misc
sunrpc 0 0 0 - /var/lib/nfs/rpc_pipefs
/dev/xvdb1 22G 173M 21G 1% /www

然后編輯/etc/fstab使分區在開機時自動掛載到www

# echo "/dev/xvdb1 /www ext3 defaults 1 2" >> /etc/fstab