Redhat Linux 新增硬碟

Redhat Linux 新增硬碟

原有的分割槽資訊
Last login: Wed Nov 30 10:01:30 2011 from 192.168.5.1
[root@ora10g ~]#
[root@ora10g ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda7 4.7G 3.0G 1.5G 67% /
/dev/sda6 2.0G 36M 1.9G 2% /tmp
/dev/sda3 4.9G 3.6G 1.1G 77% /orasoft
/dev/sda2 5.8G 5.2G 360M 94% /oradata
/dev/sda1 190M 12M 170M 7% /boot
tmpfs 506M 0 506M 0% /dev/shm

檢查系統是否認到了新新增的磁碟
[root@ora10g ~]# fdisk -l

Disk /dev/sda: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sda1 * 1 25 200781 83 Linux
/dev/sda2 26 803 6249285 83 Linux
/dev/sda3 804 1456 5245222+ 83 Linux
/dev/sda4 1457 2610 9269505 5 Extended
/dev/sda5 1457 1717 2096451 82 Linux swap / Solaris
/dev/sda6 1718 1978 2096451 83 Linux
/dev/sda7 1979 2610 5076508+ 83 Linux

Disk /dev/sdb: 8589 MB, 8589934592 bytes
255 heads, 63 sectors/track, 1044 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sdb doesn't contain a valid partition table

為新新增的硬碟建立分割槽

[root@ora10g ~]# fdisk /dev/sdb
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 1044.
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
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-1044, default 1):
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-1044, default 1044):
Using default value 1044

Command (m for help): w
The partition table has been altered!

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

檢視已經新增的分割槽
[root@ora10g ~]# fdisk -l

Disk /dev/sda: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sda1 * 1 25 200781 83 Linux
/dev/sda2 26 803 6249285 83 Linux
/dev/sda3 804 1456 5245222+ 83 Linux
/dev/sda4 1457 2610 9269505 5 Extended
/dev/sda5 1457 1717 2096451 82 Linux swap / Solaris
/dev/sda6 1718 1978 2096451 83 Linux
/dev/sda7 1979 2610 5076508+ 83 Linux

Disk /dev/sdb: 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/sdb1 1 1044 8385898+ 83 Linux

建立掛載新新增硬碟的目錄
[root@ora10g ~]# mkdir /data2

掛載硬碟
[root@ora10g ~]# mount -t ext3 /dev/sdb /data2

檢視是否掛載上
[root@ora10g ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda7 4.7G 3.0G 1.5G 67% /
/dev/sda6 2.0G 36M 1.9G 2% /tmp
/dev/sda3 4.9G 3.6G 1.1G 77% /orasoft
/dev/sda2 5.8G 5.2G 360M 94% /oradata
/dev/sda1 190M 12M 170M 7% /boot
tmpfs 506M 0 506M 0% /dev/shm
/dev/sdb 7.9G 147M 7.4G 2% /data2
[root@ora10g ~]#