查看磁盘分区详情 直接使用fdisk -l 或者使用fdisk /dev/sda，再使用p命令来查看
Command (m for help): p Disk /dev/sda: 32.2 GB, 32212254720 bytes 255 heads, 63 sectors/track, 3916 cylinders, total 62914560 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 identifier: 0x000657c3 Device Boot Start End Blocks Id System /dev/sda1 * 2048 61868031 30932992 83 Linux /dev/sda2 61870078 62912511 521217 5 Extended /dev/sda5 61870080 62912511 521216 82 Linux swap / Solaris fdisk命令 fdisk有以下命令可用，其中常用的已简单说明
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