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CentOS下添加新硬盤并分區(qū)格式化的詳細(xì)步驟

下面看我操作的步驟：
1.先用Fdisk －l 來查看當(dāng)前狀態(tài)下磁盤情況

[root@linux1 ~]# fdisk -l
Disk /dev/hda: 5368 MB, 5368709120 bytes
255 heads, 63 sectors/track, 652 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hda1 * 1 13 104391 83 Linux
/dev/hda2 14 652 5132767 8e Linux LVM
Disk /dev/hdb: 2147 MB, 2147483648 bytes
16 heads, 63 sectors/track, 4161 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
Disk /dev/hdb doesn't contain a valid partition table
上面紅色標(biāo)識行可以看出，我添加了一塊新硬盤/dev/hdb，大小為2G，未分區(qū)格式化狀態(tài)。

2.用Fdisk /dev/hdb來進(jìn)行分區(qū)操作。

[root@linux1 ~]# fdisk /dev/hdb
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel. Changes will remain in memory only,
until you decide to write them. After that, of course, the previous
content won't be recoverable.

The number of cylinders for this disk is set to 4161.
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)
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)

Command (m for help): n //輸入N表示新建一個分區(qū)
Command action
e extended
p primary partition (1-4)
p //p 表示建立一個原始分區(qū)
Partition number (1-4): 1 //1 表示此分區(qū)編號為1.
First cylinder (1-4161, default 1): 1 //1表示使用默認(rèn)起始柱面號.如果要分多個區(qū)的話，先盤算好要多大，再輸入數(shù)字
Last cylinder or size or sizeM or sizeK (1-4161, default 4161): // 輸入: 回車表示使用默認(rèn)結(jié)束柱面號.即此分區(qū)使用整個硬盤空間

Using default value 4161

Command (m for help): w //保存分區(qū)

The partition table has been altered!

Calling ioctl() to re-read partition table.
Syncing disks.

3.再次查看當(dāng)前分區(qū)狀態(tài)：
[root@linux1 ~]# fdisk -l

Disk /dev/hda: 5368 MB, 5368709120 bytes
255 heads, 63 sectors/track, 652 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/hda1 * 1 13 104391 83 Linux
/dev/hda2 14 652 5132767 8e Linux LVM

Disk /dev/hdb: 2147 MB, 2147483648 bytes
16 heads, 63 sectors/track, 4161 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes

Device Boot Start End Blocks Id System
/dev/hdb1 1 4161 2097112 83 Linux
可以看出，已經(jīng)出來了一個/dev/hdb1的新分區(qū)。下一步將其格式化，再使用

4.用mkfs.ext3格式化新分區(qū)
[root@linux1 ~]# mkfs.ext3 /dev/hdb1
mke2fs 1.39 (29-May-2006)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
262144 inodes, 524278 blocks
26213 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=536870912
16 block groups
32768 blocks per group, 32768 fragments per group
16384 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912

Writing inode tables: done
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 32 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.

5.掛載使用。
[root@linux1 ~]# mkdir /mnt/hdb1 //新建一個掛載點(diǎn)。
[root@linux1 ~]# mount /dev/hdb1 /mnt/hdb1 //掛載。
[root@linux1 ~]# df -h
文件系統(tǒng) 容量已用可用已用% 掛載點(diǎn)
/dev/mapper/VolGroup00-LogVol00
4.3G 3.6G 487M 89% /
/dev/hda1 99M 12M 82M 13% /boot
tmpfs 125M 0 125M 0% /dev/shm
/dev/hdb1 2.0G 3.0M 1.9G 1% /mnt/hdb1

6 .開機(jī)自動掛載
三.設(shè)置新硬盤開機(jī)自動掛載
在vi /etc/fstab中添加新硬盤的掛載信息.添加下面一行:
/dev/hdb1 /mnt/hdb1 ext3 defaults 1 2（如果還有一個分區(qū)就是1 3，以此類推)
這樣,每次開機(jī)后,系統(tǒng)會自動將/dev/hdb1掛載到/mnt/hdb1

標(biāo)簽：臨汾通化瀘州泰安蕪湖玉樹儋州玉溪

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CentOS下添加新硬盤并分區(qū)格式化的詳細(xì)步驟

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