fdisk 添加逻辑分区

[root@riyimei ~]# fdisk /dev/sdb

WARNING: DOS-compatible mode is deprecated. It's strongly recommended to

switch off the mode (command 'c') and change display units to

sectors (command 'u').

Command (m for help): m

Command action

a toggle a bootable flag

b edit bsd disklabel

c toggle the dos compatibility flag

d delete a partition

l list known partition types

m print this menu

n add a new partition

o create a new empty DOS partition table

p print the partition table

q quit without saving changes

s create a new empty Sun disklabel

t change a partition's system id

u change display/entry units

v verify the partition table

w write table to disk and exit

x extra functionality (experts only)

Command (m for help): p

Disk /dev/sdb: 214.7 GB, 214748364800 bytes

255 heads, 63 sectors/track, 26108 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0xe8add119

Device Boot Start End Blocks Id System

Command (m for help): n

Command action

e extended

p primary partition (1-4)

Partition number (1-4): 1

First cylinder (1-26108, default 1):

Using default value 1

Last cylinder, +cylinders or +size{K,M,G} (1-26108, default 26108): +10G

Command (m for help): P

Disk /dev/sdb: 214.7 GB, 214748364800 bytes

255 heads, 63 sectors/track, 26108 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0xe8add119

Device Boot Start End Blocks Id System

/dev/sdb1 1 1306 10490413+ 83 Linux

Command (m for help): n

Command action

e extended

p primary partition (1-4)

Partition number (1-4): 2

First cylinder (1307-26108, default 1307):

Using default value 1307

Last cylinder, +cylinders or +size{K,M,G} (1307-26108, default 26108): +20G

Command (m for help): P

Disk /dev/sdb: 214.7 GB, 214748364800 bytes

255 heads, 63 sectors/track, 26108 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0xe8add119

Device Boot Start End Blocks Id System

/dev/sdb1 1 1306 10490413+ 83 Linux

/dev/sdb2 1307 3918 20980890 5 Extended

Command (m for help): n

Command action

l logical (5 or over)

p primary partition (1-4)

First cylinder (1307-3918, default 1307):

Using default value 1307

Last cylinder, +cylinders or +size{K,M,G} (1307-3918, default 3918):

Using default value 3918

Command (m for help): P

Disk /dev/sdb: 214.7 GB, 214748364800 bytes

255 heads, 63 sectors/track, 26108 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0xe8add119

Device Boot Start End Blocks Id System

/dev/sdb1 1 1306 10490413+ 83 Linux

/dev/sdb2 1307 3918 20980890 5 Extended

/dev/sdb5 1307 3918 20980858+ 83 Linux

Command (m for help): W

The partition table has been altered!

Calling ioctl() to re-read partition table.

Syncing disks.

[root@riyimei ~]# lsblk

NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT

sda 8:0 0 50G 0 disk

├─sda1 8:1 0 512M 0 part /boot

└─sda2 8:2 0 49.5G 0 part

├─vg_riyimei-swap_lv (dm-0) 253:0 0 4G 0 lvm [SWAP]

├─vg_riyimei-root_lv (dm-1) 253:1 0 10G 0 lvm /

├─vg_riyimei-usr_lv (dm-2) 253:2 0 10G 0 lvm /usr

├─vg_riyimei-var_lv (dm-3) 253:3 0 10G 0 lvm /var

├─vg_riyimei-home_lv (dm-4) 253:4 0 4G 0 lvm /home

├─vg_riyimei-tmp_lv (dm-5) 253:5 0 1G 0 lvm /tmp

└─vg_riyimei-opt_lv (dm-6) 253:6 0 10G 0 lvm /opt

sr0 11:0 1 55.2M 0 rom

sdb 8:16 0 200G 0 disk

├─sdb1 8:17 0 10G 0 part

├─sdb2 8:18 0 1K 0 part

└─sdb5 8:21 0 20G 0 part

[root@riyimei ~]#

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fdisk 添加逻辑分区

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