1.将硬盘分区(这里就分一个区)

fdisk /dev/cciss/c0d1

交互信息：

Command (m for help): n

Command action

e extended

p primary partition (1-4)

p

Partition number (1-4): 1

First cylinder (1-71798, default 1):

Using default value 1

Last cylinder or +size or +sizeM or +sizeK (1-71798, default 71798):

Using default value 71798

Command (m for help): v

315 unallocated sectors

Command (m for help): p

Disk /dev/cciss/c0d2: 299.9 GB, 299966445568 bytes

255 heads, 32 sectors/track, 71798 cylinders

Units = cylinders of 8160 * 512 = 4177920 bytes

Device Boot Start End Blocks Id System

/dev/cciss/c0d2p1 1 71798 292935824 83 Linux

Command (m for help): w

The partition table has been

2. 格式化分区(mke4fs命令所在rpm包是e4fsprogs，yum install e4fsprogs* 就能找到了)。

mke4fs -L /opt1 /dev/cciss/c0d1p1

如果忘记加卷标，格式化完成后使用如下命令加上卷标。

e4label /dev/cciss/c0d1p1 /opt1

查看分区信息

tune4fs -l /dev/cciss/c0d0p1

3. 修改/etc/fstab  结果如下

head -3 /etc/fstab

LABEL=/ / ext3 defaults 1 1

LABEL=/opt /opt ext4 defaults 0 0

LABEL=/opt1 /opt1 ext4 defaults 0 0

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4. 创建挂载文件夹

mkdir /opt1

5.挂载

mount -a

6.查看挂载情况

mount

结果如下：

/dev/cciss/c0d1p1 on /opt1 type ext4 (rw)

题外话：如果要将ext3转成ext4的话先将目标ext3分区卸载。