Linux 空闲空间的格式化与加载

Linux 空闲空间的格式化与加载

本人有块SCSI硬盘，安装Linux AS4 时没有分区，安装好了系统后想把这块空闲分区使用上，以下是详细的操作步骤

一、使用linux as4的硬件查看工具查看未使用的硬盘空间。

二、使用fdisk对空闲分区分区。

[root@www.bkjia.com root]# fdisk /dev/sda

The number of cylinders for this disk is set to 5221.

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)

Command (m for help): p

Disk /dev/sda: 42.9 GB, 42949672960 bytes

255 heads, 63 sectors/track, 5221 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot    Start       End    Blocks   Id  System

/dev/sda1   *         1        13    104391   83  Linux

/dev/sda2            14      2356  18820147+  83  Linux

/dev/sda3          2357      2610   2040255   82  Linux swap

Command (m for help): n

Command action

   e   extended

   p   primary partition (1-4)

e

Selected partition 4

First cylinder (2611-5221, default 2611):

[root@www.bkjia.com root]# fdisk /dev/sda

The number of cylinders for this disk is set to 5221.

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)

Command (m for help): n

Command action

   e   extended

   p   primary partition (1-4)

p

Selected partition 4

First cylinder (2611-5221, default 2611): 2611

Last cylinder or +size or +sizeM or +sizeK (2611-5221, default 5221): 5221

Command (m for help): p

Disk /dev/sda: 42.9 GB, 42949672960 bytes

255 heads, 63 sectors/track, 5221 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot    Start       End    Blocks   Id  System

/dev/sda1   *         1        13    104391   83  Linux

/dev/sda2            14      2356  18820147+  83  Linux

/dev/sda3          2357      2610   2040255   82  Linux swap

/dev/sda4          2611      5221  20972857+  83  Linux

Command (m for help): w

The partition table has been altered!

Calling ioctl() to re-read partition table.

WARNING: Re-reading the partition table failed with error 16: Device or resource busy.

The kernel still uses the old table.

The new table will be used at the next reboot.

Syncing disks.

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