DF查詢目前掛載磁區
umount卸載磁區
fdisk分割磁區

• -l 查詢目前分割狀態
• command
• p 查詢硬碟分割狀態
• d 刪除磁區
• n 新件分割區 e 延伸分割區 p主分割區(只能有四個)
• w 寫入

mke2fs格式化硬碟
 

[admin@asus root]$ df '查尋目前掛載的磁區，所以目前掛載上/tem/mnt/disc0_1
Filesystem           1k-blocks      Used Available Use% Mounted on
/dev/root                 3008      3008         0 100% /
/dev/discs/disc0/part1   3903760   2852908   1050852  73% /tmp/mnt/disc0_1
[admin@asus root]$ umount /tmp/mnt/disc0_1 '卸載/tmp/mnt/disc0_1
[admin@asus root]$ df
Filesystem           1k-blocks      Used Available Use% Mounted on
/dev/root                 3008      3008         0 100% /
[admin@asus root]$ fdisk -l '查尋目前分割情況，硬碟/dev/ide/host0/bus0/target0/lun0/disc是一個8G大小的磁碟裡面有一個分割區，分割區/dev/ide/host0/bus0/target0/lun0/part1為一個NTFS的分割區，在這我們要改成ext3

Disk /dev/ide/host0/bus0/target0/lun0/disc: 8019 MB, 8019099648 bytes
255 heads, 63 sectors/track, 974 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

                                Device Boot    Start       End    Blocks   Id  S
ystem
/dev/ide/host0/bus0/target0/lun0/part1               1         974     7823623+
 83  HPFS/NTFS
[admin@asus root]$ fdisk /dev/ide/host0/bus0/target0/lun0/disc '進入/dev/ide/host0/bus0/target0/lun0/disc管理分割區

Command (m for help): d '刪除分割區
Selected partition 1

Command (m for help): p '查詢狀態，分割區/dev/ide/host0/bus0/target0/lun0/part1已被刪除

Disk /dev/ide/host0/bus0/target0/lun0/disc: 8019 MB, 8019099648 bytes
255 heads, 63 sectors/track, 974 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

                                Device Boot    Start       End    Blocks   Id  S
ystem

Command (m for help): n '新增分割區
Command action
   e   extended
   p   primary partition (1-4)
p '分割一個主分割區
Partition number (1-4): 1 '第一個主分割區
First cylinder (1-974, default 1):
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-974, default 974):
Using default value 974

Command (m for help): p '查詢狀態，已分割出/dev/ide/host0/bus0/target0/lun0/part1這個新的分割區

Disk /dev/ide/host0/bus0/target0/lun0/disc: 8019 MB, 8019099648 bytes
255 heads, 63 sectors/track, 974 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

                                Device Boot    Start       End    Blocks   Id  S
ystem
/dev/ide/host0/bus0/target0/lun0/part1               1         974     7823623+
 83  Linux

Command (m for help): w '寫入&離開
The partition table has been altered!

Calling ioctl() to re-read partition table.
Syncing disks.
[admin@asus root]$ fdisk -l'查尋目前分割情況

Disk /dev/ide/host0/bus0/target0/lun0/disc: 8019 MB, 8019099648 bytes
255 heads, 63 sectors/track, 974 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

                                Device Boot    Start       End    Blocks   Id  S
ystem
/dev/ide/host0/bus0/target0/lun0/part1               1         974     7823623+
 83  Linux
[admin@asus root]$ mke2fs -j /dev/ide/host0/bus0/target0/lun0/part1'將割出/dev/ide/host0/bus0/target0/lun0/part1，格式化為EXT3
mke2fs 1.38 (30-Jun-2005)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
979200 inodes, 1955905 blocks
97795 blocks (5.00%) reserved for the super user
First data block=0
60 block groups
32768 blocks per group, 32768 fragments per group
16320 inodes per group
Superblock backups stored on blocks:
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632

Writing inode tables: done
Creating journal (32768 blocks):done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 33 mounts or
180 days, whichever comes first.  Use tune2fs -c or -i to override.
[admin@asus root]$reboot

asus login: admin
Password:
[admin@asus root]$ df
Filesystem           1k-blocks      Used Available Use% Mounted on
/dev/root                 3008      3008         0 100% /
/dev/discs/disc0/part1   7700668    131228   7178260   2% /tmp/mnt/disc0_1