Expansión del disco de la máquina virtual CentOS7 en VMware

1. VMware asigna espacio

Inserte la descripción de la imagen aquí

Distribución interna 2.Centos7

2.1 Ver el espacio en disco actual

# df -h
Filesystem           Size  Used Avail Use% Mounted on
/dev/mapper/cl-root  8.0G  3.8G  4.3G  47% /
devtmpfs             482M     0  482M   0% /dev
tmpfs                493M     0  493M   0% /dev/shm
tmpfs                493M  6.7M  486M   2% /run
tmpfs                493M     0  493M   0% /sys/fs/cgroup
/dev/sda1           1014M  184M  831M  19% /boot
tmpfs                 99M     0   99M   0% /run/user/0

2.2 Agregar nuevas particiones al espacio del disco duro recién agregado

#  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
Partition type:
   p   primary (2 primary, 0 extended, 2 free)
   e   extended
Select (default p): p
Partition number (3,4, default 3): 3
First sector (20971520-41943039, default 20971520): 
Using default value 20971520
Last sector, +sectors or +size{
    
    K,M,G} (20971520-41943039, default 41943039): 
Using default value 41943039
Partition 3 of type Linux and of size 10 GiB is set

Command (m for help): t
Partition number (1-3, default 3): 3
Hex code (type L to list all codes): 8e
Changed type of partition 'Linux' to 'Linux LVM'

Command (m for help): p

Disk /dev/sda: 21.5 GB, 21474836480 bytes, 41943040 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: 0x000bc924

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048     2099199     1048576   83  Linux
/dev/sda2         2099200    20971519     9436160   8e  Linux LVM
/dev/sda3        20971520    41943039    10485760   8e  Linux LVM

Command (m for help): w
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.

2.3 Reinicie el sistema

# reboot

2.4 Ver el tipo de partición actual, en este caso el tipo es xfs

# df -T /dev/sda1
Filesystem     Type 1K-blocks   Used Available Use% Mounted on
/dev/sda1      xfs    1038336 188240    850096  19% /boot

2.5 Crear sistema de archivos xfs en el nuevo disco

# mkfs.xfs /dev/sda3
meta-data=/dev/sda3              isize=512    agcount=4, agsize=655360 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=0, sparse=0
data     =                       bsize=4096   blocks=2621440, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0 ftype=1
log      =internal log           bsize=4096   blocks=2560, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0

2.6 Crear PV

# pvcreate /dev/sda3
WARNING: xfs signature detected on /dev/sda3 at offset 0. Wipe it? [y/n]: y
  Wiping xfs signature on /dev/sda3.
  Physical volume "/dev/sda3" successfully created.
# pvdisplay
  --- Physical volume ---
  PV Name               /dev/sda2
  VG Name               cl
  PV Size               9.00 GiB / not usable 3.00 MiB
  Allocatable           yes (but full)
  PE Size               4.00 MiB
  Total PE              2303
  Free PE               0
  Allocated PE          2303
  PV UUID               MlRwjY-TmVF-H8PV-heSz-ALGL-Q7sp-jFU6Al

  "/dev/sda3" is a new physical volume of "10.00 GiB"
  --- NEW Physical volume ---
  PV Name               /dev/sda3
  VG Name               
  PV Size               10.00 GiB
  Allocatable           NO
  PE Size               0   
  Total PE              0
  Free PE               0
  Allocated PE          0
  PV UUID               0hmgH0-0wVg-jWUW-65WX-1TYb-sUGH-6jF1qm

2.7 PV se agrega a VG, VG Name va seguido de vgextend, en este caso, cl

# vgdisplay
  --- Volume group ---
  VG Name               cl
  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               9.00 GiB
  PE Size               4.00 MiB
  Total PE              2303
  Alloc PE / Size       2303 / 9.00 GiB
  Free  PE / Size       0 / 0   
  VG UUID               dYdb4l-wMUh-e2xv-WiaJ-Oa52-NvdF-s5ICJC
# vgextend cl /dev/sda3

2.8 VG se une a LV

# lvextend -l +2559 /dev/cl/root
  Size of logical volume cl/root changed from 8.00 GiB (2047 extents) to 17.99 GiB (4606 extents).
  Logical volume cl/root successfully resized.

2.9 Ajustar el tamaño del sistema de archivos

# xfs_growfs /dev/cl/root
meta-data=/dev/mapper/cl-root    isize=512    agcount=4, agsize=524032 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=0 spinodes=0
data     =                       bsize=4096   blocks=2096128, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0 ftype=1
log      =internal               bsize=4096   blocks=2560, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
data blocks changed from 2096128 to 4716544

En este ejemplo, el sistema de archivos xfs se ajusta usando el comando xfs_growfs. Si otros sistemas de archivos, como ext4, usan el comando resize2fs, preste atención a la distinción

3. Resultados

# df -h
Filesystem           Size  Used Avail Use% Mounted on
/dev/mapper/cl-root   18G  3.8G   15G  21% /
devtmpfs             482M     0  482M   0% /dev
tmpfs                493M     0  493M   0% /dev/shm
tmpfs                493M  6.7M  486M   2% /run
tmpfs                493M     0  493M   0% /sys/fs/cgroup
/dev/sda1           1014M  184M  831M  19% /boot
tmpfs                 99M     0   99M   0% /run/user/0

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Origin blog.csdn.net/weixin_44726976/article/details/112983254
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