VMWARE linux LVM 扩容磁盘分区

news2025/1/15 3:23:58

VMWARE设置
关闭虚拟机，删除快照，编辑虚拟机设置-硬件-硬盘-扩展磁盘容量(填写扩容后的最终大小)。
进入虚拟机
查看当前分区情况

[root@localhost ~]# lsblk 
NAME               MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTS
sda                  8:0    0  100G  0 disk 
├─sda1               8:1    0    1G  0 part /boot
└─sda2               8:2    0   49G  0 part 
  ├─openeuler-root 253:0    0 45.1G  0 lvm  /
  └─openeuler-swap 253:1    0  3.9G  0 lvm  [SWAP]
sr0                 11:0    1  1.5G  0 rom

磁盘sda大小已经是100G，sda2分区还是49G.

扩展分区表

[root@localhost ~]# sudo yum install cloud-utils-growpart
[root@localhost ~]# sudo growpart /dev/sda 2
CHANGED: partition=2 start=2099200 old: size=102758400 end=104857600 new: size=207615967 end=209715167
[root@localhost ~]# lsblk
NAME               MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTS
sda                  8:0    0  100G  0 disk 
├─sda1               8:1    0    1G  0 part /boot
└─sda2               8:2    0   99G  0 part 
  ├─openeuler-root 253:0    0 45.1G  0 lvm  /
  └─openeuler-swap 253:1    0  3.9G  0 lvm  [SWAP]
sr0                 11:0    1  1.5G  0 rom

这将使 /dev/sda2 占用所有新增的空间，现在sda2大小为99G了。

扩展物理卷

[root@localhost ~]# sudo pvresize /dev/sda2
  Physical volume "/dev/sda2" changed
  1 physical volume(s) resized or updated / 0 physical volume(s) not resized

扩展卷组

[root@localhost ~]# sudo vgextend openeuler /dev/sda2
  Physical volume '/dev/sda2' is already in volume group 'openeuler'
  Unable to add physical volume '/dev/sda2' to volume group 'openeuler'
  /dev/sda2: physical volume not initialized.

扩展逻辑卷

[root@localhost ~]# sudo lvextend -l +100%FREE /dev/mapper/openeuler-root
  Size of logical volume openeuler/root changed from <45.07 GiB (11537 extents) to <95.07 GiB (24337 extents).
  Logical volume openeuler/root successfully resized.

调整文件系统大小

我的是ext4 文件系统:

[root@localhost ~]# sudo resize2fs /dev/mapper/openeuler-root
resize2fs 1.46.4 (18-Aug-2021)
/dev/mapper/openeuler-root 上的文件系统已被挂载于 /；需要进行在线调整大小

old_desc_blocks = 6, new_desc_blocks = 12
/dev/mapper/openeuler-root 上的文件系统现在为 24921088 个块（每块 4k）。

对于 xfs 文件系统：

sudo xfs_growfs /

查看最终结果

[root@localhost ~]# lsblk
NAME               MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTS
sda                  8:0    0  100G  0 disk 
├─sda1               8:1    0    1G  0 part /boot
└─sda2               8:2    0   99G  0 part 
  ├─openeuler-root 253:0    0 95.1G  0 lvm  /
  └─openeuler-swap 253:1    0  3.9G  0 lvm  [SWAP]
sr0                 11:0    1  1.5G  0 rom