Easy Resize Centos 7 KVM on Proxmox VE 5.2

1. Proxmox - choose VM - Hard Disk - Resize

2. Login to your Centos 7 KVM as root

fdisk -l

fdisk /dev/sda

Command (m for help): n

Command action

   e   extended

   p   primary partition (1-4)

p

Partition number (1-4): Enter for default

First cylinder (2321156-334240465, default 2321156): Enter

Last cylinder, +cylinders or +size{K,M,G} (2321156-334240465, default 334240465): Enter

Command (m for help): w

Check what have we done

fdisk -l /dev/sda

3.Reboot your VM

pvcreate /dev/sda3

Physical volume "/dev/sda3" successfully created

 

show volume group details

vgs

and logical volume details

lvs

 

vgextend VolGroup /dev/sda3

   

Check Free PE 

 

vgdisplay




df -h




lvextend -L +100G /dev/mapper/SangomaVG-root  # +100G is Free PE

 

xfs_growfs /dev/mapper/SangomaVG-root