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| $ fdisk -l /dev/sdb Disk /dev/sdb: 10.7 GB, 10737418240 bytes, 20971520 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
$ fdisk /dev/sdb Welcome to fdisk (util-linux 2.23.2). Command (m for help): m Command action a 切换为可启动标记 b 编辑bsd磁盘标签 c 切换为dos兼容标记 d 删除分区 g 创建一个新的GPT分区表 G 创建一个IRIX(SGI)分区表 l 显示可用的分区类型 m 显示此帮助菜单 n 创建一个新分区 o 创建一个新的DOS分区表 p 显示分区表 q 不保存退出 s 创建一个Sun磁盘标记 t 更改分区类型 u 更改显示单位 v 验证分区表 w 保存分区表到硬盘 x 额外的功能(专家模式)
Command (m for help): p Disk /dev/sdb: 10.7 GB, 10737418240 bytes, 20971520 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: 0x0cf44cbe
Command (m for help): n Partition type: p primary (0 primary, 0 extended, 4 free) e extended Select (default p): p Partition number (1-4, default 1): 1 First sector (2048-20971519, default 2048): Using default value 2048 Last sector, +sectors or +size{K,M,G} (2048-20971519, default 20971519): +5G Partition 1 of type Linux and of size 5 GiB is set
Command (m for help): p Disk /dev/sdb: 10.7 GB, 10737418240 bytes, 20971520 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: 0xcf4c6e26
Device Boot Start End Blocks Id System /dev/sdb1 2048 10487807 5242880 83 Linux
Command (m for help): v Remaining 10485759 unallocated 512-byte sectors
Command (m for help): t Selected partition 1 Hex code (type L to list all codes): l ... Hex code (type L to list all codes): 8e Changed type of partition 'Linux' to 'Linux LVM'
Command (m for help): p Disk /dev/sdb: 10.7 GB, 10737418240 bytes, 20971520 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: 0xcf4c6e26
Device Boot Start End Blocks Id System /dev/sdb1 2048 10487807 5242880 8e Linux LVM
Command (m for help): w The partition table has been altered!
Calling ioctl() to re-read partition table. Syncing disks.
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