fdisk分区实例
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
Command (m for help): m
Command action
a toggle a bootable flag //切换可引导标记
b edit bsd disklabel
c toggle the dos compatibility flag
d delete a partition //删除分区
l list known partition types //查看所有分区类型
m print this menu //返回此菜单
n add a new partition //新建分区
o create a new empty DOS partition table
p print the partition table //查看当前分区表
q quit without saving changes //取消更改并退出
s create a new empty Sun disklabel
t change a partition's system id //修改分区系统id
u change display/entry units
v verify the partition table //验证分区表
w write table to disk and exit //保存更改并退出
x extra functionality (experts only)
操作范例
1,删除分区
Command (m for help): p //显示分区表
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
Command (m for help): d //删除分区
Partition number (1-5): 5 //分区号
Command (m for help): d
Partition number (1-5): 2
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
Command (m for help):
2,新建分区
Command (m for help): n //新建分区
Partition type: //分区类型
p primary (1 primary, 0 extended, 3 free) //主分区
e extended //扩展分区
Select (default p): //默认主分区
Using default response p
Partition number (1-4, default 2): //分区号,默认升序分配
Using default value 2
First sector (61868032-62914559, default 61868032): //首sector,默认接着上一分区
Using default value 61868032
Last sector, +sectors or +size{K,M,G} (61868032-62914559, default 62914559): +300M //容量大小,可用单位K,M,G
Command (m for help): n
Partition type:
p primary (2 primary, 0 extended, 2 free)
e extended
Select (default p):
Using default response p
Partition number (1-4, default 3):
Using default value 3
First sector (62482432-62914559, default 62482432):
Using default value 62482432
Last sector, +sectors or +size{K,M,G} (62482432-62914559, default 62914559): //默认使用全部剩余容量
Using default value 62914559
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 61868032 62482431 307200 83 Linux
/dev/sda3 62482432 62914559 216064 83 Linux
Command (m for help):
3,切换可引导标记
Command (m for help): a //切换可引导标记
Partition number (1-4): 2 //分区号
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 * 61868032 62482431 307200 83 Linux //已增加可引导标记
/dev/sda3 62482432 62914559 216064 83 Linux
Command (m for help): a
Partition number (1-4): 2
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 61868032 62482431 307200 83 Linux //取消可引导标记
/dev/sda3 62482432 62914559 216064 83 Linux
Command (m for help):
4,更改分区类型
Command (m for help): l //查看所有分区类型
0 Empty 24 NEC DOS 81 Minix / old Lin bf Solaris
1 FAT12 27 Hidden NTFS Win 82 Linux swap / So c1 DRDOS/sec (FAT-
2 XENIX root 39 Plan 9 83 Linux c4 DRDOS/sec (FAT-
3 XENIX usr 3c PartitionMagic 84 OS/2 hidden C: c6 DRDOS/sec (FAT-
4 FAT16 <32M 40 Venix 80286 85 Linux extended c7 Syrinx
5 Extended 41 PPC PReP Boot 86 NTFS volume set da Non-FS data
6 FAT16 42 SFS 87 NTFS volume set db CP/M / CTOS / .
7 HPFS/NTFS/exFAT 4d QNX4.x 88 Linux plaintext de Dell Utility
8 AIX 4e QNX4.x 2nd part 8e Linux LVM df BootIt
9 AIX bootable 4f QNX4.x 3rd part 93 Amoeba e1 DOS access
a OS/2 Boot Manag 50 OnTrack DM 94 Amoeba BBT e3 DOS R/O
b W95 FAT32 51 OnTrack DM6 Aux 9f BSD/OS e4 SpeedStor
c W95 FAT32 (LBA) 52 CP/M a0 IBM Thinkpad hi eb BeOS fs
e W95 FAT16 (LBA) 53 OnTrack DM6 Aux a5 FreeBSD ee GPT
f W95 Ext'd (LBA) 54 OnTrackDM6 a6 OpenBSD ef EFI (FAT-12/16/
10 OPUS 55 EZ-Drive a7 NeXTSTEP f0 Linux/PA-RISC b
11 Hidden FAT12 56 Golden Bow a8 Darwin UFS f1 SpeedStor
12 Compaq diagnost 5c Priam Edisk a9 NetBSD f4 SpeedStor
14 Hidden FAT16 <3 61 SpeedStor ab Darwin boot f2 DOS secondary
16 Hidden FAT16 63 GNU HURD or Sys af HFS / HFS+ fb VMware VMFS
17 Hidden HPFS/NTF 64 Novell Netware b7 BSDI fs fc VMware VMKCORE
18 AST SmartSleep 65 Novell Netware b8 BSDI swap fd Linux raid auto
1b Hidden W95 FAT3 70 DiskSecure Mult bb Boot Wizard hid fe LANstep
1c Hidden W95 FAT3 75 PC/IX be Solaris boot ff BBT
1e Hidden W95 FAT1 80 Old Minix
Command (m for help): t //更改分区类型
Partition number (1-4): 2 //分区号
Hex code (type L to list codes): 82 //82号:交换分区
Changed system type of partition 2 to 82 (Linux swap / Solaris)
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 61868032 62482431 307200 82 Linux swap / Solaris //已更改为交换分区
/dev/sda3 62482432 62914559 216064 83 Linux
Command (m for help):
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