Linux磁盘分区管理命令-fdisk

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[v_act]格式：fdisk [options] -l [disk]
    -l 设备名称：查看磁盘信息[/v_act]

[root@localhost ~]# fdisk -l

Disk /dev/sda: 53.7 GB, 53687091200 bytes, 104857600 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x0009fae8

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048      411647      204800   83  Linux
/dev/sda2          411648    12130303     5859328   82  Linux swap / Solaris
/dev/sda3        12130304   104857599    46363648   83  Linux

Disk /dev/sdb: 21.5 GB, 21474836480 bytes, 41943040 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

[root@localhost ~]# fdisk -l /dev/sda

Disk /dev/sda: 53.7 GB, 53687091200 bytes, 104857600 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x0009fae8

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048      411647      204800   83  Linux
/dev/sda2          411648    12130303     5859328   82  Linux swap / Solaris
/dev/sda3        12130304   104857599    46363648   83  Linux

[v_act]格式：fdisk [options] [disk]
    子命令：管理功能
        m：帮助菜单
        o：创建一个新的空DOS（MBR）分区表；一般磁盘默认即为MBR模式
        g：创建一个新的空GPT分区表
        p：print, 显示已有分区；
        n：new, 创建新分区（主分区“p”、扩展分区“e”）
        d：delete, 删除分区（删分区规则是从后往前删除）
        w：write, 写入磁盘保存并退出
        q：quit, 放弃更新并退出
        l：列出所有分区id
        t：调整分区id[/v_act]