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# Linux fdisk命令 Linux fdisk是一个创建和维护分区表的程序,它兼容DOS类型的分区表、BSD或者SUN类型的磁盘列表。 ### 语法 ``` fdisk [必要参数][选择参数] ``` **必要参数:** * -l 列出素所有分区表 * -u 与"-l"搭配使用,显示分区数目 **选择参数:** * -s<分区编号> 指定分区 * -v 版本信息 **菜单操作说明** * m :显示菜单和帮助信息 * a :活动分区标记/引导分区 * d :删除分区 * l :显示分区类型 * n :新建分区 * p :显示分区信息 * q :退出不保存 * t :设置分区号 * v :进行分区检查 * w :保存修改 * x :扩展应用,高级功能 ### 实例 显示当前分区情况: ``` # fdisk -l Disk /dev/sda: 10.7 GB, 10737418240 bytes 255 heads, 63 sectors/track, 1305 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 1305 10377990 8e Linux LVM Disk /dev/sdb: 5368 MB, 5368709120 bytes 255 heads, 63 sectors/track, 652 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk /dev/sdb doesn't contain a valid partition table ``` 显示SCSI硬盘的每个分区情况 ``` # fdisk -lu Disk /dev/sda: 10.7 GB, 10737418240 bytes 255 heads, 63 sectors/track, 1305 cylinders, total 20971520 sectors Units = sectors of 1 * 512 = 512 bytes Device Boot Start End Blocks Id System /dev/sda1 * 63 208844 104391 83 Linux /dev/sda2 208845 20964824 10377990 8e Linux LVM Disk /dev/sdb: 5368 MB, 5368709120 bytes 255 heads, 63 sectors/track, 652 cylinders, total 10485760 sectors Units = sectors of 1 * 512 = 512 bytes Disk /dev/sdb doesn't contain a valid partition table ```