使用環境使用的是CentOS5.8 核心是 2.6.18-238.19.1.el5
其實CentOS 5.8 裡面是有 ext4 子產品的,隻是沒加載,是以我們先把子產品加入系統
# cd
/lib/modules/2.6.18-238.19.1.el5/kernel/fs/ext4
//ext4子產品就在此目錄下
# [root@linux ext4]# ls
ext4.ko
找到子產品後使用modprobe 指令添加
# modprobe ext4
//注意:這裡隻能寫子產品名,不能寫成 ext4.ko
# lsmod |grep ext4 //添加完後使用lsmod 檢視
ext4
285409 0
jbd2
47744 1 ext4
crc16
1027 1 ext4
[root@linux ext4]# yum install
e4fsprogs //最後使用yum
安裝一下 e4fsprogs
[root@linux ext4]# mkfs.ext4
/dev/sdc //最後建立一個分區來使用ext4
建立檔案系統
mke4fs 1.41.12 (17-May-2010)
/dev/sdi is entire device, not just one partition!
Proceed anyway? (y,n) y
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
61014016 inodes, 244056064 blocks
12202803 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
7448 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, 7962624, 11239424, 20480000, 23887872,
71663616, 78675968,
102400000, 214990848
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 31 mounts or
180 days, whichever comes first. Use tune4fs -c or -i to
override.
[root@linux ext4]#mount
/dev/sdc /hadoop1