Redhat Linux 添加硬盘

原有的分区信息
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

检查系统是否认到了新添加的磁盘
[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

为新添加的硬盘创建分区

[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.

 

查看已经添加的分区
[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

创建挂载新添加硬盘的目录
[root@ora10g ~]# mkdir /data2

挂载硬盘
[root@ora10g ~]# mount -t ext3 /dev/sdb /data2

查看是否挂载上
[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 ~]#