Расширение раздела в CentOS 6/7

# df -h

Filesystem Size Used Avail Use% Mounted on

/dev/mapper/centos_ansible-root 28G 11G 17G 40% /

devtmpfs 911M 0 911M 0% /dev

tmpfs 921M 0 921M 0% /dev/shm

tmpfs 921M 8.5M 912M 1% /run

tmpfs 921M 0 921M 0% /sys/fs/cgroup

/dev/sda1 497M 277M 221M 56% /boot

tmpfs 185M 0 185M 0% /run/user/0

# fdisk -l

 

Disk /dev/sda: 32.2 GB, 32212254720 bytes, 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 label type: dos

Disk identifier: 0x000bf751

 

Device Boot Start End Blocks Id System

/dev/sda1 * 2048 1026047 512000 83 Linux

/dev/sda2 1026048 62914559 30944256 8e Linux LVM

 

Disk /dev/mapper/centos_ansible-swap: 2147 MB, 2147483648 bytes, 4194304 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 /dev/mapper/centos_ansible-root: 29.5 GB, 29490151424 bytes, 57597952 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/sda

Welcome to fdisk (util-linux 2.23.2).

 

Changes will remain in memory only, until you decide to write them.

Be careful before using the write command.

 

Command (m for help): n # создать новые раздел

Partition type:

p primary (2 primary, 0 extended, 2 free)

e extended

Select (default p): p

Partition number (3,4, default 3): 3 # Следующий номер

First sector (62914560-125829119, default 62914560): 62914560 # Следующий сектор

Last sector, +sectors or +size{K,M,G} (62914560-125829119, default 125829119): 125829119 # Последний сектор, оставляем по умолчанию

Partition 3 of type Linux and of size 30 GiB is set

 

Command (m for help): t # изменим тип ФС

Partition number (1-3, default 3): 3

Hex code (type L to list all codes): 8e # Соответствует Linux LVM

Changed type of partition 'Linux' to 'Linux LVM'

 

Command (m for help): p

 

Disk /dev/sda: 64.4 GB, 64424509440 bytes, 125829120 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: 0x000bf751

 

Device Boot Start End Blocks Id System

/dev/sda1 * 2048 1026047 512000 83 Linux

/dev/sda2 1026048 62914559 30944256 8e Linux LVM

/dev/sda3 62914560 125829119 31457280 8e Linux LVM

 

Command (m for help): w # Сохраняем изменения

The partition table has been altered!

 

Calling ioctl() to re-read partition table.

 

WARNING: Re-reading the partition table failed with error 16: Device or resource busy.

The kernel still uses the old table. The new table will be used at

the next reboot or after you run partprobe(8) or kpartx(8)

Syncing disks.

# pvcreate /dev/sda3

Physical volume "/dev/sda3" successfully created

# vgdisplay

--- Volume group ---

VG Name centos_ansible

System ID

Format lvm2

Metadata Areas 1

Metadata Sequence No 3

VG Access read/write

VG Status resizable

MAX LV 0

Cur LV 2

Open LV 2

Max PV 0

Cur PV 1

Act PV 1

VG Size 29.51 GiB

PE Size 4.00 MiB

Total PE 7554

Alloc PE / Size 7543 / 29.46 GiB

Free PE / Size 11 / 44.00 MiB

VG UUID B7FEqI-aDzN-G0xX-xUgH-oTpd-TRWc-O9sKMi

# vgextend centos_ansible /dev/sda3

Volume group "centos_ansible" successfully extended

 

# lvdisplay

--- Logical volume ---

LV Path /dev/centos_ansible/root

LV Name root

VG Name centos_ansible

LV UUID cmFknm-2nVO-kREo-tQUr-Y7X5-VBPc-AfWkYR

LV Write Access read/write

LV Creation host, time localhost, 2015-05-26 02:03:59 +0300

LV Status available

# open 1

LV Size 27.46 GiB

Current LE 7031

Segments 1

Allocation inherit

Read ahead sectors auto

- currently set to 8192

Block device 253:1

 

# lvextend -l +100%FREE /dev/centos_ansible/root

Size of logical volume centos_monitor/root changed from 27.46 GiB (7031 extents) to 57.50 GiB (14721 extents).

Logical volume root successfully resized.

# resize2fs -p /dev/mapper/centos_ansible-root

resize2fs 1.42.9 (28-Dec-2013)

Filesystem at /dev/mapper/centos_ansible-root is mounted on /; on-line resizing required

old desc_blocks = 1, new_desc_blocks = 2

Performing an on-line resize of /dev/mapper/centos_ansible-root to 1799936 (4k) blocks.

The filesystem on /dev/mapper/centos_ansible-root is now 1799936 blocks long.

 

# xfs_growfs /dev/mapper/centos_ansible-root

meta-data=/dev/mapper/centos_ansible-root isize=256 agcount=4, agsize=1799936 blks

= sectsz=512 attr=2, projid32bit=1

= crc=0 finobt=0

data = bsize=4096 blocks=7199744, imaxpct=25

= sunit=0 swidth=0 blks

naming =version 2 bsize=4096 ascii-ci=0 ftype=0

log =internal bsize=4096 blocks=3515, version=2

= sectsz=512 sunit=0 blks, lazy-count=1

realtime =none extsz=4096 blocks=0, rtextents=0

data blocks changed from 7199744 to 15074304

# df -h

Filesystem Size Used Avail Use% Mounted on

/dev/mapper/centos_ansible-root 58G 11G 47G 19% /

devtmpfs 911M 0 911M 0% /dev

tmpfs 921M 0 921M 0% /dev/shm

tmpfs 921M 8.5M 912M 1% /run

tmpfs 921M 0 921M 0% /sys/fs/cgroup

/dev/sda1 497M 277M 221M 56% /boot

tmpfs 185M 0 185M 0% /run/user/0